Which one??? Please

Answers

Answer 1

Answer:

Step-by-step explanation:

its A

Answer 2

Definitely A -90

this is because it’s already at a negative angle, you are technically gonna subtract to get the numbers back to the positive side… sorry if it doesn’t make sense -_-

Related Questions

Use the law of cosines to solve for the measure of the largest angle in triangle abc.

Answers

The law used for determining the measure of unknown sides and angles of a triangle. The measure of the largest angle in triangle abc is 98.25 degrees

Law of cosines

The law used for determining the measure of unknown sides and angles of a triangle. It is expressed as:

c² = a² + b² - 2abcosC

Given the following

c = 16

a = 12

b = 9

Substitute

16² = 12² + 9² - 2(9)(12)cosC

256 = 144 + 81 - 216cosC

31 = -216cosC

cosC = -31/216

C = 98.25 degrees

Hence the measure of the largest angle in triangle abc is 98.25 degrees

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simplify -x(4x^2 − 6x + 1)

Answers

Answer:

[tex]-4x^3+6x^2-x[/tex]

Step-by-step explanation:

1. Distribute the X across the equation: [tex]-x(4x^2)=-4x^3\\[/tex]

2.[tex]-x(-6x)=6x^2[/tex]

3.[tex]-x(1)=-x[/tex]

3.[tex]-4x^3+6x^2-x[/tex]

2.) x/2 = 1 Solving equations.

Answers

Answer: x=2

Step-by-step explanation:

To find the value of x, we have [tex]\frac{x}{2} =1[/tex]. To isolate x, we want to multiply both sides by 2 to get x alone.

x=2

Answer:

Step-by-step explanation:

[tex] \frac{x}{2} = 1 \\ cross \: multiplying \\ x = 2 \times 1 = 2 \\ x = 2[/tex]

fractions and decimals
(just the simplest fractions, but if i did anything wrong on the greatest common factor, correct that please & thank you)

Answers

Answer:

All the GCFs look good! Here's the simplified fractions:

Step-by-step explanation:

1. 2/3

2. 3/4

3. 3/7

4. 3/16

5. 27/29

6. 4/11

7. 2/11

Simply divide the numerator by the GCF to find the simplified numerator, and the denominator by that same GCF to find the simplified denominator!

Question 3 of 10
10 Points
Write an equation in slope-intercept form of the line that passes through the point
(3,-2) with slope -2.
A.y=-2-2(x-3)
B. y = -2x + 4
Oc.y+2=-2(x-3)
OD. 2x+y-4 = 0
Reset Selection

Answers

The equation in slope-intercept form of the line that passes through the point is y = -2x+4 , Option B is the correct answer.

What is the equation of a straight Line ?

The equation of a straight line is given by the equation

y= mx+c

Where m is the slope and

c is the intercept on y axis.

The given data is

line passes through the point (3,-2) with slope -2.

m = -2

y = -2x + c

-2 = - 2 * 3 +c

-2 = -6 +c

c = +4

y = -2x+4

Therefore Option B is the correct answer.

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Anybody!!!!!! Select all that equals to 6(4)(6(-5))

Answers

Answer:

[tex]\frac{1}{6}[/tex]

[tex]6^{-1}[/tex]

[tex]\frac{1}{6^{1} }[/tex]

Step-by-step explanation:

Answer:

[tex]\frac{1}{6}[/tex] and [tex]6^{-1}[/tex] also [tex]}{\frac{1}{6^{1} } }[/tex] which is the same as [tex]\frac{1}{6}[/tex]

Step-by-step explanation:

According to exponent rules

[tex]a^{n} *a^{m} =a^{n+m}[/tex]

[tex]a^{-x}= \frac{1}{a^{x} }[/tex]

Please answer quickly!!

Answers

Answer:

B is true

C is false

D is false

Step-by-step explanation:

- B is true because two negative numbers are added together, the outcome is negative hence always less than 0

- C is false due to needing a negative number add to -1.5 to be less, a positive only makes the number greater

- D is false since you are adding 0.9 (9/10), anything less than this will m ake the sum be greater than 0

example: - 0.5 + 0.9 = 0.4 or - 0.8 + 0.9 = 0.1

(giving 100 points) What is the equation of the line of best fit for the following data? Round the slope and y-intercept of the line to three decimal places.

x y

4 3

6 4

8 9

11 12

13 17

A: y = 1.560x - 4.105

B: y = -4.105x + 1.560

C: y = 4.105x - 1.560

D: y = -1.560x + 4.105

please hurry

Answers

Answer:

Slope-intercept form of a linear equation: [tex]y=mx+b[/tex]

where:

[tex]m[/tex] is the slope[tex]b[/tex] is the y-intercept

To determine the equation of the line of best fit from the given answer options, examine the relationship between the x and y values.

From inspection of the data, we can see that as x increases, y increases. Therefore, the slope of the equation will be positive.

(If the y-values decrease as the x-values increase, then the slope would be negative).

Therefore, we can immediately discount answer options B and D as they have negative slopes.

The x and y values are not very far away from each other. The options given for the slope are either 1.560 or 4.105. If the slope was 4.105, we would expect to see values of y that were further away from the x-values.

Therefore, the line of best fit is:

A: y = 1.560x - 4.105

To prove this, plot the 5 points on a graph and draw a line of best fit (see attached).

Choose 2 points on the line of best fit: (4, 2) and (11, 13)

Use the slope formula with these points to calculate the approximate slope:

[tex]\implies \sf slope\:(m)=\dfrac{change\:in\:y}{change\:in\:x}\approx\dfrac{13-2}{11-4}=\dfrac{11}{7}=1.57[/tex]

Thus proving that y = 1.560x - 4.105 is an appropriate option for the equation of the line of best fit.

if 3 + root8 by 3-root8 + 3-root8 by 3+root8 = a+broot2 find a and b

Answers

If [tex]\frac{3+\sqrt{8} }{3-\sqrt{8} } +\frac{3-\sqrt{8} }{3+\sqrt{8} }=a+b\sqrt{2}[/tex], the value of a and b is given as a = 34 and b = 0

What is an equation?

An equation is an expression that shows the relationship between two or more variables or numbers.

[tex]\frac{3+\sqrt{8} }{3-\sqrt{8} } +\frac{3-\sqrt{8} }{3+\sqrt{8} }\\ \\\frac{9+6\sqrt{8}+8+9-6\sqrt{8}+8 }{(3-\sqrt{8} )(3+\sqrt{8} )} \\\\\frac{34}{9-8} =34+0\sqrt{2}[/tex]

If [tex]\frac{3+\sqrt{8} }{3-\sqrt{8} } +\frac{3-\sqrt{8} }{3+\sqrt{8} }=a+b\sqrt{2}[/tex], the value of a and b is given as a = 34 and b = 0

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What is the length of AC in the given triangle?

Answers

Answer: the answer is 126.6

Step-by-step explanation:

Answer:

AC ≈ 126.6

Step-by-step explanation:

The law of sines can be used to find the side length of interest in this triangle. It tells you ...

a/sin(A) = b/sin(B) = c/sin(C)

missing angle

In order to use the law of sines, we must have a side length and its opposite angle. Here, the angle opposite the given side is unmarked, so we need to compute it using the angle sum theorem.

A +B +C = 180°

A +85° +53° = 180°

A = 42° . . . . . . . . . . . . . subtract (85°+53°)

unknown side

Then side AC can be found from ...

AC/sin(B) = BC/sin(A)

AC = BC·sin(B)/sin(A) = 85·sin(85°)/sin(42°)

AC ≈ 126.547

The closest answer choice is 126.6.

The volume of this cone is 3,183.96 cubic meters. What is the height of this cone?

Use ≈ 3.14 and round your answer to the nearest hundredth.

Answers

Answer:

height = 18m

Step-by-step explanation:

cone volume = 3183.96 m³

1/3 πr²h = 3183.96

1/3×3.14×13×13×h = 3183.96

h = 3183.96×3/13×13×3.14

h = 9551.88/530.66

h = 18

What is the length of segment BC?

Answers

Answer:

is there any other info?

Simplify: 4^2+√9 what is the answer

Answers

[tex]~~4^2 +\sqrt 9\\\\=16 +3 \\\\=19[/tex]

Reflect the shape A in the line y
=
y
(-5, 6)
(4,3)
(-3, 1)
-8-7 -6 -5 -4 -3 -2 -1
4 5 6 7 8
-1
-2
-3
-4
-5
-6
-7
-8
What are the coordinates of the vertices
of the image?
A
00
8
7
6
LO
5
4
3
2
-
1
Đ
1
-2
3
-X.
2

Answers

(-5,6)

Step-by-step explanation:

which type of statement has the form' "if A, then B"

Answers

Answer:

list statements please or I cannot help you.

Step-by-step explanation:

or do you want me to make a statement?

Answer: Conditional Statement

A conditional is of the form "if, then" which is often found in math classes and formal logic classes as well.

Complete the steps to find the surface area of the right prism shown below.

Steps Example
1. Write the surface area formula. Surface Area = BA + ph
2. Identify the shape of the bases. right
3. Use the correct formula to find the area of one base.

4. Multiply that area by 2 (to get BA, area of both bases). BA = 2 • area of one base
BA = (2)() = units2
5. Find the perimeter of one base. p = 3 + 4 + 5 =
6. Multiply that perimeter by the height of the prism (to get LA, area of all lateral faces). LA = ph = ()(20) = units2
7. Add the results from steps 4 and 6. Surface Area = BA + LA = +
= units2

Answers

The surface area of the prism is 144 square units

How to determine the surface area?

The attached image represents the missing figure in the question.

The image would be used to complete the steps, as follows:

Step 1: The surface area formula. Surface Area = BA + phStep 2: The shape of the bases are right trianglesStep 3: The area of one base; Area = 0.5 * 3 * 4 = 6Step 4: Multiply the area in (3) by 2: BA = 2 * 6 = 12Step 5: The perimeter of one base. p = 3 + 4 + 5 = 12Step 6: Multiply p by h; LA = 12 * 11 = 132Step 7: Add (4) and (6). Surface Area = 12 + 132 = 144

Hence, the surface area of the prism is 144 square units

Answers

The total surface area of the object shown in the diagram is 164 inches.

What is the total surface area?

The total surface area of a 3-dimensional object is the sum of the areas of the faces or surfaces of a 3-dimensional object. The object shown is the net of a cuboid.

Total surface area of a cuboid = 2 (lw + wh + lh)

where:

• l = length

• w = width

• h = height

2 { (10 x 3) + (10 x 4) + (4 x 3)}

2 (30 + 40 + 12)

2 x 82 = 164 inches

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The surface area of the figure is 164 square inches

How to determine the surface area?

From the net of the rectangular prism, we have the following dimensions:

Length = 4 inches

Width = 3 inches

Height = 10 inches

The surface area is calculated as:

Area = 2 * (Length * Width + Length * Height + Width * Height)

So, we have:

Area = 2 * (4 * 3 + 4 * 10 + 3 * 10)

Evaluate

Area = 164

Hence, the surface area of the figure is 164 square inches

Answers

The differential equation that models the given situation will be dy/dt = K(N - y).

How to compute the equation?

Let y = number of individuals who have heard about the product.

Let N - y = this who haven't heard about the product.

From the given statement, the rate for change will be t = dy/dt. Therefore, the differential equation that models the given situation will be dy/dt = K(N - y).

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Can someone help me answer these

Answers

Answer:

1. 05+02=07

07+03=10

2. 05+04=09

09+01=10

3. 05+01=06

06+04=10

4. 05+03=08

08+02=10

5. 17+03=20

6. 19+01=20

Step-by-step explanation:

(Answers are in bold)

What is the solution set for 2|3y+7|=10

Answers

Answer:

[tex]y = \frac{7}{2} [/tex]

Step-by-step explanation:

[tex]3y + 7 = 5y \\ 7 = 5y - 3y \\ 7 = 2y \\ \frac{7}{2} = y \\ y = \frac{7}{2} [/tex]

Solve the quadratic equation 5x^2+x+1=0

Answers

Answer:

No Solution

Step-by-step explanation:

Answer:

[tex]x = \dfrac{-1\pm i\sqrt{19}}{10}[/tex]

Step-by-step explanation:

[tex]~~~~~~5x^2 +x +1 = 0\\\\\implies x = \dfrac{-1\pm\sqrt{1^2 -4 (5)(1)}}{2(5)}\\\\\implies x = \dfrac{-1 \pm \sqrt{-19}}{10}\\\\\implies x = \dfrac{-1\pm i\sqrt{19}}{10}[/tex]

Is cos²α the same thing as cosα²?

Answers

Answer:

No, it is not the same thing.

Step-by-step explanation:

Hope this helps!

1/3x + 1/4y = 1

2x – 3y = –30

Answers

Answer:

(-3, 8) is the solution

Step-by-step explanation:

The LCD of the first equation is (3)(4) = 12. Rewriting this equation, we get:

4x + 3y = 12

to which we add the second equation, obtaining:

4x + 3y = 12

2x - 3y = -30

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

6x = -18

Dividing both sides by 6 yields x = -3

Substituting -3 for x in the first equation yields 4(-3) + 3y = 12, or

-12 + 3y = 12

Then 3y = 24 and y must be 8.

The solution to this system of linear equations is (-3, 8).

What is the value of d in the equation?

1 and three-fourths d = 14

Answers

Answer:

hope you can understand

Help me please I beg lol I can’t solve it (step by step in comments)

Answers

Answer:

272 m

Step-by-step explanation:

You have to devide the shape in 2.

find the distance between the two points in simplest radical form.
(3,-8) and (8,4)

Answers

Answer:

Step-by-step explanation:

The way to find the distance between two points on the coordinate plane is to use the distance formula, which is basically a way of applying the Pythagorean Theorem.

The distance formula is [tex]\sqrt{(x_{1}- x_{2} )^2 + (y_{1}- y_{2})^2}[/tex]. Let's say the coordinate (3, -8) is (x1, y1) and the coordinate (8, 4) is (x2, y2). We can plug these values into the formula:

[tex]\sqrt{(3- 8 )^2 + (-8 - 4)^2}\\\sqrt{(-5)^{2} + (-12)^{2}} \\\sqrt{25+144} \\\sqrt{169} \\13[/tex]

So, the distance between the two points is 13.

Which statement is true about the net and the solid it can form?

The length of side a will be 5 m.
The length of side b will be 2 m.
The length of side c will be 7 m.
The length of side c will be 2 m.

Answers

The length of side c will be 2 m.

A cyclist cycles a distance of 36 miles in a time of 3 hours.
What is her average speed?

Answers

Answer:

12mph

Explanation:

12 mph is her average speed.

Explanation (if you need it):

The cyclist travels 36 miles in 3 hours. To identify the average speed, we need to find the unit rate. To do so, we divide 36 by 3. 36/3 = 12. Therefore, the average speed is 12 mph.

A recent survey of people who eat salad suggest that 78% like tomatoes on their salad, 49% like cheese on their salad, and 36% like both tomatoes and cheese on their salad. suppose a person who eats salad is selected at random, and find they like cheese on their salad. what is the probability that the person also likes tomatoes on their salad? 0.29 0.46 0.49 0.73

Answers

By definition of conditional probability, the probability that the person also likes tomatoes on their salad is 0.73 or 73% (last option).

Definition of probability

Probability is the greater or lesser possibility that a certain event will occur.

In other words, the probability establishes a relationship between the number of favorable events and the total number of possible events.

Definition of conditional probability

The conditional probability P(A|B) is the probability that an event A occurs, knowing that another event B also occurs. That is, it is the probability that event A occurs if event B has occurred. Is defined as:

P(A|B) = P(A∩B)÷ P(B)

Probability that the person also likes tomatoes on their salad

In this case, you know:

Event A: Person likes tomatoes on their salad.Event B: Person likes cheese on their salad.

Being the event A∩B (A intersection B) when A and B occur simultaneously, then:

P(A)= 78%=0.78P(B)= 49%= 0.49P(A∩B)= 36%=0.36

Suppose a person who eats salad is randomly selected and likes cheese on his salad, the probability that the person also likes tomatoes on their salad is:

P(B|A) = P(A∩B)÷ P(B)

Then:

P(A|B) = 0.36÷0.49

P(B|A) = 0.73= 73%

Finally, the probability that the person also likes tomatoes on their salad is 0.73 or 73% (last option).

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Which situation can be represented by the expression -2-5−2−5minus, 2, minus, 5?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
The temperature was 222 ^\text{o}\text{C}
o
Cstart superscript, start text, o, end text, end superscript, start text, C, end text and has decreased by 555 ^o\text{C}
o
Cstart superscript, o, end superscript, start text, C, end text.

(Choice B)
B
The temperature was -2−2minus, 2 ^\text{o}\text{C}
o
Cstart superscript, start text, o, end text, end superscript, start text, C, end text and has increased by 555 ^o\text{C}
o
Cstart superscript, o, end superscript, start text, C, end text.

(Choice C)
C
The temperature was -2−2minus, 2 ^\text{o}\text{C}
o
Cstart superscript, start text, o, end text, end superscript, start text, C, end text and has decreased by 555 ^o\text{C}
o
Cstart superscript, o, end superscript, start text, C, end text.

Answers

The situation that represents the expression 2 - 5 is (a) the temperature was 2°C and has decreased by 5°C

How to determine the situation?

The expression is given as:

2 - 5

When the expression illustrates change in temperature, the interpretation can be:

An initial temperature of 2°C decreases by 5°C

Hence, the situation that represents the expression 2 - 5 is (a) the temperature was 2°C and has decreased by 5°C