As seen in the diagram below, Dalvin is building a walkway with a width of x x feet to go around a swimming pool that measures 7 feet by 9 feet. If the total area of the pool and the walkway will be 143 square feet, how wide should the walkway be?

Answers

Answer 1

Answer: 2

Step-by-step explanation:

(7+2x)(9+2x)= 143 (area= length x width)

63+14x+18x+4x^2=143

4x^2+32x−80=0

x^2+8x−20=0

(x−2)(x+10)=0

x = 2 or -10

Since the length of the walkway can't be negative, the answer is 2.


Related Questions

Which of the following equations represents a line that is perpendicular to the line that passes through the points below?
(-3,10) (3,8)

Answers

The equation of the line that is perpendicular to the line passing through the points (-3, 10) and (3, 8) is y = 3x + 9.

To find a line that is perpendicular to another line, we need to use the fact that the slopes of the two lines are negative reciprocals of each other.

The slope of a line passing through two points (x1, y1) and (x2, y2) can be found using the slope formula:

slope = (y₂ - y₁)/(x₂ - x₁)

Therefore, the slope of the line passing through the points (-3, 10) and (3, 8) can be found as follows:

slope = (8 - 10)/(3 - (-3)) = -1/3

Now, to find the equation of a line perpendicular to this line, we need to find the negative reciprocal of the slope -1/3, which is 3.

Therefore, the slope of the line perpendicular to the given line is 3.

Now, we can use the point-slope form of a linear equation to find the equation of the perpendicular line. The point-slope form of a linear equation is:

y - y₁ = m(x - x₁)

where m is the slope of the line, and (x₁, y₁) is any point on the line.

We know the slope of the perpendicular line is 3, and we can choose any point on the line. Let's choose the midpoint of the given points (-3, 10) and (3, 8), which is

=> ((-3+3)/2, (10+8)/2) = (0, 9).

So, using the point-slope form of the equation with m = 3 and (x1, y1) = (0, 9), we get:

y - 9 = 3(x - 0)

Simplifying this equation, we get:

y = 3x + 9

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a. ¿Cuál es el pago mensual de la hipoteca a 25 años, de $200,000 al 4% al primer centavo?

Answers

El pago mensual de la hipoteca a 25 años, de $200,000 al 4% al primer centavo, es de $1,051.81.

The measurements of the angles of a triangle have a ratio of 4:5:6. What are the three angle measurements? Classify the triangle by its sides and its angles.

please help with 21-24

Answers

The three angles of the triangle are 48 degrees, 60 degrees, and 72 degrees and it is a acute triangle.

The three angles of the triangle 4x, 5x, and 6x, where x is a constant of proportionality.

We know that the sum of the angles of a triangle is always 180 degrees, so we can set up an equation:

4x + 5x + 6x = 180

Simplifying, we get:

15x = 180

Dividing both sides by 15, we get:

x = 12

So the three angles of the triangle are:

4x = 4(12) = 48 degrees

5x = 5(12) = 60 degrees

6x = 6(12) = 72 degrees

all three angles are less than 90 degrees, the triangle is an acute triangle.

Therefore, the three angles of the triangle are 48 degrees, 60 degrees, and 72 degrees and it is a acute triangle.

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Find the volume of the prism. Round your answer to the nearest tenth, if necessary.
cm³
18 cm
8 cm
16 cm

Answers

Answer: 2304.0 cm³

Step-by-step explanation: V = length x width x height

V = 18 cm x 8 cm x 16 cm

V = 2304 cm³


Compare the numbers with
>, <, =.
69
-0.43
- 4
-2.3

Answers

Answer:

-4 < -2.3 < -0.43 < 69

Step-by-step explanation:

If you look at a number line,

-4 is the first to come and as we approach 0, it's -2.3 and then -0.43. After 0 is only 69 leftover.

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Rajindri, a physician assistant who works in an emergency room, earns $163 for every two hours that she works.

Which equation represents the relationship between d, the number of dollars Rajindri earns, and t, the amount of time Rajindri works, in hours?

A. d= 163 + t

B. d= 163/2 × t/2

C. d= 163t

D. d= 81.50t

Answers

Answer:

C. d= 163t represents the relationship between d, the number of dollars Rajindri earns, and t, the amount of time Rajindri works, in hours. This is because Rajindri earns $163 for every two hours that she works, which means she earns $81.50 for each hour that she works. Therefore, the equation that relates the number of dollars earned to the number of hours worked is d = 163t.

Step-by-step explanation:

Phil owns a ranch business and uses four-wheelers to do much of his work. Occasionally, though, he and his boys will go for a ride together as a family activity. During year 1, Phil put 1,124 miles on the four-wheeler that he bought on January 15 for $12,800. Of the miles driven, only 274 miles were for personal use. Assume four-wheelers qualify to be depreciated according to the five-year MACRS schedule and the four-wheeler was the only asset Phil purchased this year. (Use MACRS Table 1, Table 2, Table 3, Table 4 and Table 5.) (Do not round intermediate calculations. Round your final answers to the nearest whole dollar amount.) b. Calculate the allowable depreciation for year 2 if total miles were 1,610 and personal-use miles were 760 (ignore the §179 expense and bonus depreciation).

Answers

Phil owns a ranch business and uses four-wheelers to do much of his work the allowable depreciation for year 2 is $4,096.

To calculate the allowable depreciation for year 2, we need to determine the depreciation basis of the four-wheeler and then apply the appropriate MACRS depreciation rate.

The depreciation basis is the original cost of the asset minus any Section 179 expense deduction and any bonus depreciation claimed.

Since we are ignoring these deductions in this case, the depreciation basis is simply the original cost of the four-wheeler:

Depreciation Basis = $12,800

To determine the MACRS depreciation rate for year 2, we need to consult Table 2 from the MACRS tables, which gives the percentage rates for assets in the 5-year class for each year of the recovery period. According to Table 2, the depreciation rate for year 2 is 32%.

Using this information, we can calculate the allowable depreciation for year 2 as follows:

Depreciation for Year 2 = Depreciation Basis × MACRS Depreciation Rate for Year 2

Depreciation for Year 2 = $12,800 × 32%

Depreciation for Year 2 = $4,096

Therefore, the allowable depreciation for year 2 is $4,096.

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It's illegal to bet on political races in the United States, but overseas betting on American elections is common. As of this writing, Hillary Clinton is the favorite to win the presidency in 2016, with odds listed as 8/11. Explain what that means, including relating it to probability.

Answers

Odds are a measure of the likelihood of an event occurring. In the case of betting on an event, odds represent the ratio of the payout for a winning bet to the amount of the bet. So, in this case, odds of 8/11 mean that if you were to bet $11 on Hillary Clinton winning the presidency and she did win, you would get a payout of $8, plus your original $11 bet.

To relate this to probability, you would calculate the implied probability of the odds. This is a simple calculation:

Implied probability = (1 / (odds + 1)) x 100%

Using the odds of 8/11 for Hillary Clinton, the implied probability would be:

(1 / (8/11 + 1)) x 100% = 57.89%

So, according to these odds, there is a 57.89% chance that Hillary Clinton will win the presidency.

Answer:

57.89%

Step-by-step explanation:

Implied probability = (1 / (odds + 1)) x 100%

Using the odds of 8/11 for Hillary Clinton:

Implied probability = (1 / (8/11 + 1)) x 100% = 57.89%

There is a 57.89% chance that Hillary Clinton will win the presidency.

1. 7/8 + 1 1/4
2. 1 2/6 + 2 3/8
3. 2 3/4 + 1 1/6
4. 2 2/7 - 1

Answers

Answer:

1. 17/8   2. 89/24   3. 47/12   4. 9/7

Answer:

1) 29

2) 57

3) 91

4) 15

Step-by-step explanation:

1) 7/8 + 11/4

find lcm

lcm=8

multiply through by 8

8×7/8+8×11/4

Gives: 7 + 22

 =29

2) 12/6+ 11/4

lcm=12

multiply through by 12

12× 12/6 + 12× 11/4

 24 + 33

 =57

3) 23/4 + 11/6

lcm=12

multiply through by 12

12× 23/4 + 12× 11/6

 =69 +22

 =91

4) 22/7 - 1

lcm=7

multiply through by 7

7 ×22/7 - 7 ×1

22-7

=15

FIND THE SUM OF GEOMETRIC SERIES 3+2.55+2.1675+1.842375+...

Answers

The sum of geometric series 3+2.55+2.1675+1.842375+...

Hence, the correct option is B.

To find the sum of a geometric series, we can use the formula

S = a(1 - [tex]r^{n}[/tex]) / (1 - r)

Where

S = sum of the geometric series

a = first term of the series

r = common ratio of the series

n = number of terms in the series

In this case, we can see that the first term is 3 and the common ratio is 2.55/3 = 0.85. We can also see that there are an infinite number of terms in the series.

Using the formula for an infinite geometric series, we can simplify the formula to

S = a / (1 - r)

By putting these values we have, we get

S = 3 / (1 - 0.85) = 20.

Hence, the sum of the geometric series is 20.

Hence, the correct option is B.

The question is incomplete and the complete question is '' FIND THE SUM OF GEOMETRIC SERIES 3+2.55+2.1675+1.842375+...

A. 8

B. 20

C. 12

D. 4 ''

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The garment factory plans to make 690 sets of garments. It has been done for 5 days, with an average of 75 sets per day. The rest needs to be completed in 2.5 days, how many sets are done on average per day (step-by-step answer)

Answers

The garment factory needs to produce an average of 126 sets per day in the next 2.5 days to complete the order of 690 sets.

We have,

The number of sets produced in the first 5 days.

= 5 x 75

= 375

The number of sets remaining.

= 690 - 375

= 315

The number of sets to be completed in the next 2.5 days.

= 315

The average number of sets to be completed per day.

= 315 / 2.5

= 126

Therefore,

The garment factory needs to produce an average of 126 sets per day in the next 2.5 days to complete the order of 690 sets.

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Which of the following is true for the traditional economy?

Answers

Answer:

They barter, or trade (without using money). Economic systems are based on customs, traditions, and beliefs of the past.

Step-by-step explanation: -

Based on this equation, estimate the rating of chips whose cost is $1.10.
Round your answer to the nearest hundredth.

Answers

The estimated rating of chips whose cost is $1.10 is 2.25.

Estimating the rating of chips whose cost is $1.10.

From the question, we have the following parameters that can be used in our computation:

y = 2.5x - 0.5

To estimate the rating of chips whose cost is $1.10, we can substitute x = 1.10 into the equation y = 2.5x - 0.5 and solve for y.

y = 2.5x - 0.5

y = 2.5(1.10) - 0.5

y = 2.75 - 0.5

y = 2.25

Therefore, the estimated rating of chips whose cost is $1.10 is 2.25. Rounded to the nearest hundredth, it is 2.25.

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A washer and a dryer cost $949 combined. The washer costs $99 more than the dryer. What is the cost of the dryer?

Answers

Step-by-step explanation:

Subtract the 99 from 949 then    divide by 2

949-99= 425 dollars = price of dryer

( then washer is  425 + 99 )

I’m stuckkkk please helpppp

Answers

The hiking trial at the state park that is the longest would be D. Hilltop

How to find the longest hiking trail?

To find the hiking trail that is longest, convert the lengths shown to one form so as to see which is the longest.

Mammoth = 8.005 kilometers

Brookside = 8. 7 kilometers

Wild Rose = 8, 080 meters = 8. 08 kilometers

Hilltop = 8 kilometers 800 meters = 8. 8 kilometers

This then shows that the hiking trail that is the longest in the state park is the Hilltop trail which goes for 8. 8 kilometers.

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the expression 30 x squared - 100x - 60 and (5x-20) (6x+3) define the same function f. Which expression makes it easier to find f of 0

Answers

Answer The expressions and define the same function, . 1. Which expression makes it easier to find ? Explain your reasoning. 2. Find . 3. Which expression makes it easier to find the values of that make the equation true? Explain or show your reasoning. 4. Find the values of that make .
question-amp-image




Explaining

If a = 3 and b = -2, what is the value of a2 + 3ab ”“ b2?​

Answers

Substituting a = 3 and b = -2 into the expression a^2 + 3ab - b^2, we get:

a^2 + 3ab - b^2 = 3^2 + 3(3)(-2) - (-2)^2

a^2 + 3ab - b^2 = 9 - 18 - 4

a^2 + 3ab - b^2 = -13

Therefore, the value of a^2 + 3ab - b^2 when a = 3 and b = -2 is -13.

is 400% of 2 less than 10, greater than 10 but less than 100, or greater than 100?

Answers

Answer:

400% of 2 is 8, so it would be less than 10

Step-by-step explanation:

To find out if 400% of 2 is less than 10, greater than 10 but less than 100, or greater than 100, we need to calculate 400% of 2, which is:

(400/100) x 2 = 8

So, we know that 400% of 2 is 8.

Since 8 is less than 10, we can say that 400% of 2 is less than 10.

It takes Sam 40 minutes to jog 5 kilometers. How far can he jog in 60 minutes?

Answers

Answer:

7.5 kilometers

Step-by-step explanation:

[tex]\frac{40}{5}[/tex] = [tex]\frac{60}{x}[/tex]

[tex]\frac{40}{5}[/tex] can be simplified to 8

8 = [tex]\frac{60}{x}[/tex]  Multiply both sides by x

8x = 60  Divide both sides by 8

[tex]\frac{8x}{8}[/tex] = [tex]\frac{60}{8}[/tex]

x = 7.5

Helping in the name of Jesus.

How many pounds of almonds priced $5.35 per pound should be mixed with peanuts worth $3.75 per pound in order to obtain 20 pounds of mixture that will sell for $4.50 per pound?

Answers

Answer:

9.375 pounds of almonds with 10.625 pounds of peanuts

----------------------

To solve this problem, we can use a system of equations with two variables:

x = pounds of almonds at $5.35,y = pounds of peanuts at $3.75.


We have two equations based on the given information:

1) x + y = 20 (total pounds of the mixture)2) 5.35x + 3.75y = 4.50 * 20 (total cost of the mixture)

Solve the first equation for x:

x = 20 - y

Substitute the expression for x into the second equation:

5.35(20 - y) + 3.75y = 90

Simplify and solve for y:

107 - 5.35y + 3.75y = 90-1.60y = -17y = 10.625

Substitute the value of y back into the expression for x:

x = 20 - 10.625x = 9.375

So, you should mix 9.375 pounds of almonds with 10.625 pounds of peanuts to obtain 20 pounds of mixture that will sell for $4.50 per pound.

Answer:

Step-by-step explanation:

You should mix 9.375 pounds of almonds with 10.625 pounds of peanuts to obtain 20 pounds of mixture that will sell for $4.50 per pound.

A set of data items is normally distributed with a mean of 70 and a standard deviation of 8. Convert 70 to a z-score.

z70=
(Do not round until the final answer. Then round to the nearest hundredth as needed.)

Answers

When 70 to a z-score, the resulting z-score is 0

Converting 70 to a z-score.

From the question, we have the following parameters that can be used in our computation:

Mean = 70

Standard deviation = 8

Score = 70

To convert 70 to a z-score, we make use of the following equation

z = (score - mean)/Standard deviation

Substitute the known values in the above equation, so, we have the following representation

z = (70 - 70)/8

Evaluate the expression

z = 0

Hence, converting 70 to a z-score. we get 0

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Eulerize this graph in the most efficient way possible, considering the weights of the edges.

Answers

We can eulerize this graph in the most efficient way possible by making these vertices have even degree through  adding  an edge between them.

How do we Eulerize a graph?

We can Eulerize a graph by ensuring  to add edges to the graph in a way that preserves its connectivity while ensuring that all vertices have even degree.

A good method to do this is by  adding  edges between pairs of vertices that have odd degree until all vertices have even degree.

In the scenario above,  all the  vertices have odd degree except for the first and last vertices. To make these vertices have even degree, we go ahead and add an edge between them.

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The length of a rectangle is 2x+ 5 units and the width is 7x+ 1 units. Find the area of the rectangle.

Answers

(2x+5)(7x+1)
2x*7x, 2x*1, 5*7x, 5*1
Simplify,
14x^2+2x+35x+5
Simplify,

14x^2+37x+5




What meaning of the statement this?

Answers

The meaning of the given statement is concept of a cyclic subgroup in group theory.

What is cyclic group?

In group theory, a cyclic group is a group that can be generated by a single element. That is, it is a group that is generated by a single element a, where any element of the group can be expressed as a power of a.

The order of a cyclic group is equal to the order of its generator. If the generator has order n, then the cyclic group has n elements. The group operation in a cyclic group can be either additive or multiplicative, depending on the notation used.

The statement defines a cyclic subgroup is a subgroup of a group that is generated by a single element. The element used to generate the subgroup is called the generator of the cyclic subgroup. The set of all powers of the generator, including the inverse powers and the identity element, forms the cyclic subgroup.

In other words, the cyclic subgroup generated by an element a of a group is the smallest subgroup that contains a. It consists of all possible combinations of a and its inverse under the group operation.

A group or subgroup is called cyclic when it can be generated by a single element. In other words, if every element of the group can be expressed as a power of a single element, then the group is cyclic.

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A wave is traveling at a speed of 3.4m/s has a length of 1.3m. what is its frequency?

Answers

The frequency of the wave is 2.62 Hz

25.
What is the height of a box if the width is x + 1, the length is x + 3, and the volume is x3 + 6x2 + 11x + 6? (Hint: Recall
that V= (wh.)
Ox+2
none of the answer choices
O-x-2
O x-2
-x+2
0

Answers

The height of box for the given cuboid satisfied the relation through which the volume of cuboid is satisfied is,  height = x+2

What about volume of cuboid?

A cuboid is a three-dimensional shape that has six rectangular faces, where each face has four sides and four right  angles. The volume of a cuboid is the amount of space that it occupies in three-dimensional space. It is measured in cubic units.

The formula to calculate the volume of a cuboid is given by multiplying its length, width, and height.

Volume of cuboid = Length x Width x Height

The volume of a cuboid can be used to determine the amount of space that it can hold or the amount of material required to fill it.

The volume of a cuboid can be calculated by multiplying its length, width, and height.

If the length of the cuboid is represented by "l", the width by "w", and the height by "h", then the volume can be calculated using the formula:

Volume of cuboid = l x w x h

According to the given information:

As, we know that the volume of cuboid = length x breath x height

Given volume of cuboid is = [tex]x^{3} + 6x^{2} +11x^{} + 6[/tex]

And width = x + 1 and length = x + 3.

Volume of cuboid = length x breath x height

⇒ [tex]x^{3} + 6x^{2} +11x^{} + 6[/tex] = (x + 1)(x + 3) x height

⇒ height = [tex]\frac{x^{3} + 6x^{2} +11x^{} + 6}{(x+1)(x+3)}[/tex]

⇒ height = [tex]\frac{(x+1)(x+2)(x+3)}{(x+1)(x+3)}[/tex]

⇒ height = (x+2)

So, the height of the given cuboid is (x+2)

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Solve the system of equations.

y = 2 - 6x

1/2y - x = 1

Question 4 options:

(0,-2)


(2,0)


(-2,0)


(0,0)


(1,-4)

Answers

Answer:

Step-by-step explanation:

We can start by solving the second equation for y:

1/2y - x = 1

1/2y = x + 1

y = 2x + 2

Now we can substitute this expression for y into the first equation:

y = 2 - 6x

2x + 2 = 2 - 6x

Adding 6x to both sides, we get:

8x + 2 = 2

Subtracting 2 from both sides, we get:

8x = -0

Dividing both sides by 8, we get:

x = 0

Now we can use this value of x to find y:

y = 2x + 2

y = 2(0) + 2

y = 2

Therefore, the solution to the system of equations is x=0 and y=2.

A company needs to deliver product to each of their 5 stores around the Dallas, TX area. Driving distances between the stores are shown below. Find a route for the driver to follow, returning to the distribution center in Fort Worth:
a. Using Nearest Neighbor starting in Fort Worth
b. Using Repeated Nearest Neighbor

Answers

Using Nearest Neighbor starting in Fort Worth, the route will have a total path length of 183.

How to calculate the value

Using Nearest Neighbor starting in

Foethliceth:

We take the cheapest way to travel,

19 38 41 D42 F

d+ F A 43 M

Total path length = 19 +43 +38 +41 +42 = 183

Using Repeated Nearest. Neighbor:

The repetitive nearest algorithm says. to tey each veetex as starting point I then choose the best answer.

Feam Fort Worth:

F 19 A 43 M 38 p 4D 42 F

Total path length. = 183

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Lauren over-filled the homemade pecan pie that she was baking for Thanksgiving, so the pie needed additional cooking time. Lauren decided to place a strip of aluminum foil around the edge of the crust so that it would not burn. If Lauren used a pie pan with a 12-inch diameter, how long, to the nearest inch, should the strip of foil be?

A. 19 inches
B. 24 inches
C. 113 inches
D. 38 inches

Answers

Applying the circumference formula, the strip of aluminum foil should be about 38 inches long, which corresponds to answer choice D.

How to Calculate Circumference?

To determine the length of the aluminum foil strip, we need to find the circumference of the pie pan, which is the distance around the edge of the pan.

The formula for the circumference of a circle is:

C = 2πr

where C is the circumference, π is a mathematical constant approximately equal to 3.14, and r is the radius of the circle (which is half the diameter).

Since the pie pan has a diameter of 12 inches, the radius is 6 inches. Therefore:

C = 2π(6)

C ≈ 37.7 inches

This is approximately, D. 38 inches.

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Calculate how far up the wall the ladder reaches​

Answers

The maximum height of the ladder on the wall is given as follows:

h = 8.7 m.

What are the trigonometric ratios?

The three trigonometric ratios are the sine, the cosine and the tangent, and they are defined as follows:

Sine of angle = length of opposite side to the angle divided by the length of the hypotenuse.Cosine of angle = length of adjacent side to the angle divided by the length of the hypotenuse.Tangent of angle = length of opposite side to the angle divided by the length of the adjacent side to the angle.

For the angle of 60º, the parameters are given as follows:

Adjacent side: 5 m.Opposite side: maximum height.

Hence the maximum height is obtained as follows:

tan(60º) = h/5

h = 5 x tangent of 60 degrees

h = 8.7 m.

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Dalit or the Scheduled are more sensitive terms for the "untouchables" of the Indian caste system. True or False? What is the equation of the line, in standard form, that passes through (4, -3) and is parallel to the line whose equation is4x+y-2=0?04x-y=134x+y=134x+y=-13 Each register in the ARM Cortex CPU programmer's model is ________ bits wide.Group of answer choicesa. 8b. 16c. 32d. 64 about how many grams per day of protein is sloughed off the cells of the intestine through the wear and tear of digestion? Compare and contrast the four different types of solar activity above the photosphere. (Select all that apply)A. Prominences are huge loops of the Suns ionized but cool material that are pushed by magnetic forces from the chromosphere into the corona.B. There are regions of higher density and temperature than the surrounding material in the chromosphere called plages.C. Flares are long lived phenomena above the photosphere beginning at the solar minimum and ending at solar maximum.D. Coronal mass ejections happen when a flare is so violent that the material exceeds the escape speed of the sun. It is connected to sunspots. Population/Quantitative Genetics) Worldwide, about 1/3 of all marriages occur between people who were born fewer than ten miles apart. This is an example of A. natural selection. B. genetic drift. C. nonrandom mating. D. migration How can marginal cost be expressed mathematically? Marginal cost (MC) can be expressed as A. MC = TC/Q, where TC is total cost and Q is output. B. Delta TC/Delta Q, where TC is total cost and Q is output. C. MC = Delta AC/Delta Q, where AC is average cost and Q is output. D. MC = Delta FC/Delta Q, where FC is fixed cost and Q is output. E. MC = TC -FC, where TC is total cost and FC is fixed cost. For example, if the total cost of producing three units of output is $2, 150 and the total cost of producing four units of output is $3, 332, then the marginal cost of the fourth unit is $. (Enter your response as an integer) Consider the following Schema course(courseid,title,deptname,credits)instructor (ID, name, deptname, salary)1. "Find the average salary of instructors in the Computer Science department.2. "Find the total number of instructors who teach a DBE course.3. find the number of tuples in the course relation4. "Find the average salary in each department.5. "Find the average salary of all instructors. A 9-pound bag of sugar is being split into containers that hold 34 of a pound. How many containers of sugar will the 9-pound bag fill Describe the disputes over water availability and use which can arise from proposals to build dams at sites in pakistan Pfizer, Merck, Novartis, and other pharmaceutical companies have little choice but to engage in global marketing since there is little demand for their products in home countries, their research centers are located overseas no single market is large enough to recover costs incurred in research. there is more demand overseas for their products. technology is not available in home countries. PLEASE HELPSelect the correct answer from the drop-down menu.Read this excerpt from Mandela's speech:"That spiritual and physical oneness we all share with this common homeland explains the depth of the pain we all carried in our hearts as we saw our country tear itself apart in a terrible conflict We have triumphed in the effort to implant hope in the breasts of the millions of our people. We enter into a covenant that we shall build the society in which all South Africans, both black and white, will be able to walk tall, without any fear in their hearts, assured of their inalienable right to human dignity..."Now read this excerpt from President Lincoln's Gettysburg Address:"But, in a larger sense, we can not dedicate, we can not consecrate, we can not hallow this ground. The brave men, living and dead, who struggled here, have consecrated it far above our poor power to add or detract. The world will little note, nor long remember what we say here, but it can never forget what they did here. It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us that from these honored dead we take increased devotion to that cause for which they here gave the last full measure of devotion - that we here highly resolve that these dead shall not have died in vain that this nation, under God, shall have a new birth of freedom, and that government of the people, by the people, for the people, shall not perish from the earth."Both excerpts address issues of race. In addition, like Mandela's speech, Lincoln's speech specifically addresses the concept of . Does a reaction occur when aqueous solutions of iron(III) nitrate and potassium hydroxide are combined? no/yes how do these factors explain why interest rates have been lower in recent years? let xx and yy have joint density functionp(x,y)={23(x+2y)0for 0x1,0y1,otherwise.p(x,y)={23(x+2y)for 0x1,0y1,0otherwise.Find the probability that(a) x>1/7x>1/7:probability =(b) x Read the excerpt from "Rhobert in Cane.Rhobert is an upright man whose legs are banty-bowed and shaky because as a child he had rickets. The earth is round. Heaven is a sphere that surrounds it. Sink where you will. God is a Red Cross man with a dredge and a respiration pump whos waiting for you to die at the opposite periphery. God built the house. He blew His breath into its stuffing. It is good to die obeying Him who can do these things.How does Toomer best create an authoritative tone in this excerpt?A.by using brief sentences to convey key pointsB.by comparing God to a Red Cross manC.by capitalizing words in the middle of sentencesD.by repeating the actions that God has taken 5.6t for t=0.7(evaluate the expression) please help i would really appreciate it An equilateral triangle has length of each side 12 cm. Calculate the area of the triangle. Calculate its area. For every household in a particular county, the water use in thousands of gallons over the course of a year was recorded. The mean water use for the households in the county was found to be 162 and the standard deviation was 140.a) based on the information given above, could the distribution of household water use for that county be approximately normal? Explain.b) A random sample of 50 households will be selected, and the mean water use will be calculated for the households in the sample. Is the sampling distribution of the sample mean for random samples of size 50 approximately normal? Explain.