PLS HELP!!

hassan is finding the quotient of (2+3i) and (-4-i)

Answer:

The prime factorization of 75 is:

75 = 3 * 5^2

The greatest common factor (GCF) of the number 75 is 1, since 1 is the highest factor that can be shared by all the prime factors of 75.

Therefore, the factored form of 75 using the GCF is:

75 = 1 * 3 * 5^2

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a) The vector parametric equation for the helical path is r(t) = <28cos(12πt), 28sin(12πt), 5t*12>, where t is the parameter and 0 ≤ t ≤ 1.

b) You walked a total distance of 840π feet.

a) To find the vector parametric equation for the helical path, we first note that the spiral staircase makes 6 complete revolutions as we climb from the bottom to the top. This means that as we climb 60 feet, we will make 6 full revolutions around the z-axis. Since the radius of the spiral is 28 feet, we can use the equation for a helix to describe our path.

r(t) = <28cos(θ), 28sin(θ), ht>

where θ is the angle of rotation around the z-axis and h is the height we have climbed. We know that we make 6 full revolutions, or 12π radians, as we climb from the bottom to the top, so we can substitute θ = 12πt. We also know that we climb 60 feet in one hour, so our height function is h(t) = 5t*12.

Thus, our vector parametric equation for the helical path is r(t) = <28cos(12πt), 28sin(12πt), 5t*12>, where t is the parameter and 0 ≤ t ≤ 1.

b) To find the distance we walked, we need to integrate the magnitude of the velocity vector over the interval [0,1].

The velocity vector is the derivative of the position vector:

v(t) = < -336πsin(12πt), 336πcos(12πt), 60>

The magnitude of the velocity vector is:

|v(t)| = sqrt((-336πsin(12πt))^2 + (336πcos(12πt))^2 + 60^2) = 336π

Thus, the distance we walked is:

distance = ∫|v(t)|dt from 0 to 1 = ∫336π dt from 0 to 1 = 336π(1-0) = 336π

Therefore, we walked a total distance of 840π feet.

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Answer:

scale factor = [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

the side corresponding to WX is EH

the scale factor is the ratio of corresponding sides, image to original, so

scale factor = [tex]\frac{EH}{WX}[/tex] = [tex]\frac{2}{4}[/tex] = [tex]\frac{1}{2}[/tex]

A Organic shape is one that does not have an identifiable name. While still flat, 2-D enclosed areas, these shapes are more "freeform" and might resemble things that we see in nature.

Geometric shapes are well-defined, regular shapes described by mathematical formulas, including circles, squares, triangles, and rectangles. Symmetrical shapes exhibit mirror-like symmetry, like butterflies or snowflakes.

Organic shapes  appear in natural objects like leaves or rocks; they are flowing and curvilinear in form, with varying size, proportions, and contours. Organic shapes are free from strict rules and symmetry, often used in art.

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Answer:

yes she is correct

Step-by-step explanation:

The value of tan (2∅) in the right triangle is  - 960 / 644.

A right angle triangle is a triangle that has one of its angles as 90 degrees. The sum of angles in a triangle is 180 degrees.

Therefore, the triangle is a right angle triangle because it follows the Pythagoras's principle as follows:

c² = a² + b²

where

Therefore,

15² + 8² = 17²

Let's find ∅ using trigonometric ratios,

tan ∅ = opposite / adjacent

tan ∅ = 15 / 8

Therefore,

tan 2∅ = 2 tan ∅ / 1 - tan² ∅

tan 2∅ = 30 / 8 ÷ 1 - (15 / 8)²

tan 2∅ = 30 / 8 ÷ 1 - 225 / 64

tan 2∅ = 15 / 4 ÷  64 - 225/ 64

tan 2∅ = 15 / 4 ÷ -161 / 64

tan 2∅ = 15 / 4 × 64 / -161

tan 2∅ =  - 960 / 644

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The value of tan (2∅) in the right triangle is  - 960 / 644.

A right angle triangle is a triangle that has one of its angles as 90 degrees. The sum of angles in a triangle is 180 degrees.

Therefore, the triangle is a right angle triangle because it follows the Pythagoras's principle as follows:

c² = a² + b²

where

Therefore,

15² + 8² = 17²

Let's find ∅ using trigonometric ratios,

tan ∅ = opposite / adjacent

tan ∅ = 15 / 8

Therefore,

tan 2∅ = 2 tan ∅ / 1 - tan² ∅

tan 2∅ = 30 / 8 ÷ 1 - (15 / 8)²

tan 2∅ = 30 / 8 ÷ 1 - 225 / 64

tan 2∅ = 15 / 4 ÷  64 - 225/ 64

tan 2∅ = 15 / 4 ÷ -161 / 64

tan 2∅ = 15 / 4 × 64 / -161

tan 2∅ =  - 960 / 644

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The probability of the event is 4/13 when the odds in favor of the event are 4 to 9.

When the odds in favor of an event are given as a ratio of "a to b", the probability of the event can be calculated as:

Probability of the event = a / (a + b)

In this case, the odds in favor of the event are 4 to 9.

Therefore, we have:

a = 4 (the number of favorable outcomes)

b = 9 (the number of unfavorable outcomes)

Substituting these values into the formula, we get:

Probability of the event = 4 / (4 + 9)

Probability of the event = 4 / 13

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a)There are 286 ways to select any three people from the group of 13.

b)There are 35 ways to select three women from the group of seven women.

c) The probability that the selected group consists of all women is 0.122 or approximately 12.2%

What is probability?

Probability is the measure of the likelihood or chance that an event will occur, expressed as a number between 0 (impossible) and 1 (certain), or as a percentage between 0% and 100%. It is used to quantify uncertainty and make predictions in various fields such as mathematics, statistics, physics, engineering, economics, and social sciences

a. The total number of ways to select three people from a group of 13 is given by the combination formula,

C(13, 3) = 13! / (3! × (13 - 3)!) = 286

Therefore, there are 286 ways to select any three people from the group of 13.

b. The number of ways to select three women from a group of seven women is given by the combination formula,

C(7, 3) = 7! / (3! × (7 - 3)!) = 35

Therefore, there are 35 ways to select three women from the group of seven women.

c. To find the probability that the selected group consists of all women, we need to find the number of ways to select three women from the group of seven women and divide it by the total number of ways to select three people from the group of 13:

P(all women) = C(7, 3) / C(13, 3) = 35 / 286 = 0.122

Therefore, the probability that the selected group consists of all women is 0.122 or approximately 12.2%.

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The geometric sequence in the list of options is A. 3, 12, 48, . . .

A geometric sequence is a sequence of numbers in which each term after the first is found by multiplying the previous term by a fixed number.

A. 3, 12, 48, . . . is a geometric sequence because each term is obtained by multiplying the previous term by 4.

B. 3, 1, . . . is not a geometric sequence because there is no fixed ratio between terms.

C. 0, 1, 3, 9, . . . is not a geometric sequence because the ratio between terms is not constant.

D. 3, 6, 12, 21, . . . is not a geometric sequence because the ratio between terms is not constant.

Therefore, the only geometric sequence is A. 3, 12, 48, . . .

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Answer:

3, 12, 48, . . .

Step-by-step explanation:

got it right

Part a: translation: (x,y) ---> (x + 1, y - 8); D'(3, -1), E'(8, -2),  F'(4, -8), G'(-1, -7).

Part b: reflection : in the x axis :D'(2,-7), E'(7,-6), F'(3,0) and G'(-2,-1).

In geometry, a translation is a transfer that occurs either laterally to the left or right as well as vertically up or down.

It may also consist of a mix of the two. Instead, you should evaluate the coordinates of the important locations in the first and second figures if you need must describe a translation. The number of units that have been moved horizontally, vertically, and in which directions are noted verbally.

Given that:

Part a: translation: (x,y) ---> (x + 1, y - 8)

D(2,7) -> D'(2 + 1, 7 - 8) = D'(3, -1)

E(7,6) -> E'(7+ 1,6- 8) = E'(8, -2)

F(3,0) -> F'(3+ 1,0- 8)  = F'(4, -8)

G(-2,1) -> G'(-2+ 1,1- 8) = G'(-1, -7)

Thus, the coordinates of D'E'F'G' -  D'(3, -1), E'(8, -2),  F'(4, -8), G'(-1, -7).

Part b: reflection : in the x axis

vertices D(2,7), E(7,6), F(3,0) and G(-2,1).

value of x will remain same, but y get negative.

(x,y) -- (x, -y)

D'(2,-7), E'(7,-6), F'(3,0) and G'(-2,-1).

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Correct question:

Parallelogram DEFG with vertices D(2,7), E(7,6), F(3,0) and G(-2,1):

a: translation: (x,y) ---> (x + 1, y - 8)

b: reflection : in the x axis

The area of the shaded region on the actual triangle is: 2/16 = 1/8 inches²

So the answer is (B) 1/8 inches².

The size of a two-dimensional surface or region, such as a floor's surface, a painting's face, or the contours of a piece of land, is measured in terms of area.

It represents the amount of space that is enclosed or occupied by the surface or region under consideration and is typically measured in square units, such as square metres or square feet.

The area of the shaded region on the actual triangle is related to the area of the shaded region on the map by the square of the scale factor. In this case, the scale factor is 1 inch = 1/4 square inches, so the square of the scale factor is:

(1/4)² = 1/16

This means that the area of the shaded region on the actual triangle is 1/16th the area of the shaded region on the map.

The area of the shaded area on the map is 2 inches², matching the area of the triangle on the map, which is 2 inches²

Therefore, the shaded area on the actual triangle has the following area:

2/16 = 1/8 inches².

Therefore, the response is (B) 1/8 inches².

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Answer:

Pretty sure it’s A, D, A

Step-by-step explanation:

Jake measured a hotel and made a scale drawing, the length of the room in the drawing is 24 inches.

If the scale of the drawing is 8 inches : 7 feet, this means that for every 8 inches in the drawing, there are 7 feet in real life.

To find out length of the room is in the drawing, we need to set up a proportion:

8 inches / 7 feet = x inches / 21 feet

where x is the length of the room in the drawing.

We can cross-multiply and solve for x:

8 inches × 21 feet = 7 feet × x inches

168 inches = 7 feet × x inches

Dividing both sides by 7, we get:

24 inches = x

Therefore, the length of the room in the drawing is 24 inches.

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The correct options are -  A. In the period in which the corresponding sales are recorded, records the expected bad debt expenditure. and C. Reports accounts receivable at the estimated amount of cash to also be collected on the balance sheet.

The measure that the company uses to set aside money for its bad debts or uncollectible accounts is known as the allowance method of accounting. This accounting technique reflects the accrual basis.

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Correct question:

The allowance method of accounting for bad debts has the following advantages over the direct write-off method including: (You may select more than one answer. ):

A. Records estimated bad debts expense in the period when the related sales are recorded.

B. Records estimated bad debts expense when the account receivable is determined to be uncollectible.

C. Reports accounts receivable on the balance sheet at the estimated amount of cash to be collected

D. Reports sales on the income statement at the estimated amount of cash to be collected

The proposition can be proven by showing that the left and right cosets of H in G form a partition of G.

As H is a G subgroup, it comprises the identity element e within G. For any g element in G, the left coset gH comprises ge = g and the right coset Hg contains eg = g. Thus, there are non-empty left as well as right cosets.

G's each element belongs to both the left and the right cosets of H. Hence, all left (or right) cosets' union in G covers every G element. The left and right cosets of H in G build non-empty subsets that do not intersect with one another. Their union equals G; thus, they certainly construct a partition for G.

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Answer:

-1.5

Step-by-step explanation:

Remember that the slope is the rise over the run, or: Slope = [tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex].

[tex]\frac{6 - -3}{-1 - 5} = \frac{9}{-6} = -1.5[/tex]

So, your slope is -1.5.

The quantity of Willow's books that are mysteries would be = 125 books.

To calculate the quantity of books that are mysteries the following is carried out.

The total number of books that willow has = 225 books

The total number of books that are mysteries = 5/9 of 225

That is ;

= 5/9 × 225/1

= 1125/9

= 125 books.

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The probability, expressed as a percent rounded to the nearest tenth, that the sample mean will be within $1 of the population mean is 91.5%.

To find the probability that a random sample of size two will have a sample mean within $1 of the population mean, we need to first calculate the population mean and standard deviation.

The population mean is the average of the given values:

(2 + 4 + 4 + 5 + 5 + 7) / 6 = 4.5

The population standard deviation can be calculated using the formula:

σ = [tex]\sqrt{S(x-u)^{2}/N }[/tex]

where S represents the sum of, x is each value, u is the population mean, and N is the population size.

Using this formula, we get:

σ = [tex]\sqrt{(2-4.5)^{2}+ (4-4.5)^{2}+(4-4.5) +(5-4.5)^{2} +(5-4.5)^{2}+ (7-4.5)^{2} /6}[/tex] = 1.5

Now we can find the probability of getting a sample mean within $1 of the population mean using the t-distribution since the population standard deviation is unknown and the sample size is less than 30. Since we are looking for the probability of the sample mean being within $1 of the population mean, we need to find the probability of getting a sample mean between 3.5 and 5.5 dollars.

We can use a t-distribution table or a calculator to find the probability. For a sample size of 2, the degrees of freedom is 1, and using a t-distribution table with a significance level of 0.05, we get a t-value of 12.71.

Therefore, the probability of getting a sample mean between 3.5 and 5.5 dollars is approximately 91.5% (calculated using a t-distribution calculator or the t-distribution table), rounded to the nearest tenth.

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This requires the circle theorem and the angle at the center postulate.

It simply states that the angle subtended by an arc at the centre is twice the angle subtended at the circumference.

Thus

8) m∡CA = 72 x 2 = 144°

9) m∡AD = 144/2 = 72°  - Angle Bisected by radius.

10) m∠C = ∠∡CA/2 = 72/2 = 36°

11) where the angles in the polygon are given as:

4y + 14)°
105°

7y+1)°
7x +1)°


Then, x and y are given as follows.

Note that 105° and (7y+1)° are opposite angles in a polygon = 180°
Also

(4y + 14)° + (4y + 14)° = 180

Thus

105° + (7y+1)° = 180 ......1

(7x +1)° + (4y + 14)° = 180 .....2



Simplifying the first equation:

105° + (7y+1)° = 180

7y + 106 = 180

7y = 74

y =  10.57


(7x +1)° + (4y + 14)°  = 180

(7x + 1)° + (4  (10.57) +  14)° = 180

(7x + 1)° + 54.28° = 180

7x + 55.28   = 180

7x =  124.72

x = 17.82

So we can conclude that , x is approximately 17.82 and y is approximately 10.57.

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Sasha will deposit $450 at 6% simple interest. The formula for calculating the balance of an account with simple interest is given by A = P(1 + rt), where A is the final amount, P is the initial principal balance, r is the annual interest rate (expressed as a decimal), and t is the time in years.

In this case, the initial principal balance P is $450, the annual interest rate r is 6% or 0.06 as a decimal, and the time t is 2 years. Plugging these values into the formula gives us:

A = 450(1 + 0.06 * 2)

Evaluating this expression gives us a final amount of approximately $477 in the account after two years.

Sasha will deposit the rest of her money ($850 - $450 = $400) at 2% compounded annually. The formula for calculating the balance of an account with annual compounding is given by A = P(1 + r/n)^(nt), where A is the final amount, P is the initial principal balance, r is the annual interest rate (expressed as a decimal), n is the number of times the interest is compounded per unit time (per year in this case), and t is the time in years.

In this case, the initial principal balance P is $400, the annual interest rate r is 2% or 0.02 as a decimal, n is 1 since it’s compounded annually, and the time t is 2 years. Plugging these values into the formula gives us:

A = 400(1 + 0.02/1)^(1 * 2)

Evaluating this expression gives us a final amount of approximately $416.16 in the account after two years.

Therefore, there will be approximately $60.84 more money in Sasha’s account at 6% simple interest than at 2% compounded annually after two years.

Answer:

[tex]\frac{15}{(x-7)*(x+3)} = \frac{3/2}{x-7} + \frac{-3/2}{x+3}[/tex]

Step-by-step explanation:

Set up the partial fraction decomp:

[tex]\frac{15}{(x-7)*(x+3)} = \frac{A}{x-7} + \frac{B}{x+3}\\[/tex]

Multiply across:

[tex]15 = (\frac{A}{x-7} + \frac{B}{x+3})*(x+3)*(x-7)\\15 = A(x+3) + B(x-7)\\[/tex]

You can do this two ways from this point, you can plug in values for x to solve for A and B individually or set up a system of equations to find A and B

[tex]15 = Ax + 3A + Bx -7B\\Ax + Bx = 0\\3A - 7B = 15\\[/tex]

From the first equation we can see that A = -B, plugging into the second equation we get that

-10B = 15, so therefore B = -3/2 and because of the first equation A = 3/2 giving us our answer

Scores between 23 & 59 will give Paul a C for the semester (an average between 70 and 79).

The sum of the scores on the first three, hundred point tests

= 82 + 88 + 87 = 257.

The total score required in four 100-point tests to get an average score of 70 = 70X4= 280.

The total score required in four 100-point tests to get an average score of 79 = 79X4= 316.

Therefore, the score on the fourth test should be between (280-257) & (316-57) i.e, 23 & 59 to get an average score of 70 & 79.

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Option B is the correct answer: chocolate-peanut butter cups and chocolate-caramel bites.

Xzavier should choose the two candies with the highest price per pound to maximize his spending.

The prices per pound are as follows:

$13.88 for chocolate-covered cashews

$11.46 for chocolate-covered peanut butter cups

$9.62 for Chocolate-Caramel Bites

$8.24 for Gourmet Gummy Bears

Chocolate-covered Cashews and Chocolate-Peanut Butter Cups are the two chocolates with the highest per-pound pricing.

As a result, Xzavier purchased a half-pound of Chocolate-covered Cashews and a half-pound of Chocolate-Peanut Butter Cups.

Option B is the correct answer: chocolate-peanut butter cups and chocolate-caramel bites.

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Answer:

A. $1,166.40

Step-by-step explanation:

Since they have to travel a round trip, the total distance traveled will be 2*1,701 = 3,402 miles.

The total amount of gasoline needed can be found by dividing the total distance by the average gas mileage of the RV:

Gasoline needed = 3,402 miles ÷ 10.5 miles/gallon = 324.57 gallons

The total cost of gasoline can be found by multiplying the gasoline needed by the cost per gallon:

Total cost = 324.57 gallons × $3.60/gallon = $1,169.25

Therefore, Clinton and Stacy will spend approximately $1,169.25 on gasoline for the round trip to Yellowstone National Park and back home.

The closest option to this answer is A. $1,166.40.

Hope this helps!

Area of a circle is given by

[tex]\text{A} = \pi \times r^2[/tex]

We need to know the radius

[tex]\text{r} = \dfrac{\text{d}}{2}[/tex]

[tex]\text{r} = \dfrac{\text{74}}{2}[/tex]

[tex]\text{r} = 37 \ \text{mm}[/tex]

The radius is 37 mm and pi = 3.14

[tex]\text{A} = 3.14 \times (37)^2[/tex]

[tex]\text{A} = \boxed{\bold{4298.66 \ \bold{mm}^2}}[/tex]

27 can be written as a product of 3 and 9, where 9 is a perfect square.

In mathematics, a perfect square is an integer that is equal to the square of another integer. In other words, a perfect square is a non-negative integer that can be expressed as the product of an integer with itself.

To write 27 as a product of two integers such that one of the factors is a perfect square, we need to find a perfect square that divides 27.

The perfect square that divides 27 is 9, which is equal to [tex]3^2[/tex].

So, we can express 27 as the product of two factors, 3 and 9. One of the factors, 9, is a perfect square because it is equal to [tex]3^2[/tex]. Therefore, we have written 27 as a product of two integers where one of the factors is a perfect square.

We can also express 27 as 1 x 27 or 27 x 1, but neither of these representations includes a perfect square as a factor.

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Step-by-step explanation:

The narrowest definition of the number -2 is that it is an integer that is less than zero and has an absolute value of 2. In other words, it is the additive inverse of the number 2, and can be written as "-2 = -1 * 2".