Help me I promise I will give you guys brainliest

Answer:

55.1 ft

Step-by-step explanation:

4 + 4 + circumference of the circle

Formula for circumference of a circle is 2 · π · radius, but can also be written as π · diameter

4 + 4 + (15 · π)

4 + 4 + (15 · 3.14)

4 + 4 + 47.1

8 + 47.1

55.1

Answer:

Linear function: y = -15x + 75

Domain: x ≤ 5

Range: y ≥ 0

Please tell me if there are any mistakes in my answer and I will correct them.

Step-by-step explanation:

The linear function is y = -15x + 75, written in y=mx+b form. X is the amount of hours. Since the speed is decreasing, we will use -15. Since we started at 75 miles per hour, our b value will be 75.

The domain is all the possible values for x.

Since the comet slows down by 15 miles every hour until it stops moving, we can solve for x by putting in 0 for y.

0 = -15x + 75

15x = 75

x = 5

Therefore, the domain is x ≤ 5.

The range is the set of all possible values of y. In this case, the range can be anything but 0 in order for the equation to make sense.

So, the range is y ≥ 0.

Answer:

domain is 0,5

Step-by-step explanation:

after 5 hours, it stops moving

a) The step where Mardie first made an error is given as follows: Step 1, as the negative sign means that the sign of each term inside the parenthesis should be changed.

b) The correct expression is given as follows: -8.6b + 28.

The expression in the context of this problem is defined as follows:

(-3.78b + 12) - (4.82b - 16).

The negative sign before the parenthesis means that the sign of each term inside the parenthesis is changed, hence:

-3.78b + 12 - 4.82b + 16.

This is the step where Maddie made the first error.

Then, to simplify the expression, we combine the like terms, as follows:

b(-3.78 - 4.82) + 12 + 16 = -8.6b + 28.

More can be learned about simplification of expressions at https://brainly.com/question/723406

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2 ⇒ 1

3 ⇒ 3

4 ⇒ 2

5 ⇒ 1

6 ⇒ 3

7 ⇒ 5

8 ⇒ 2

9 ⇒ 4

10 ⇒ 0

11 ⇒ 2

12 ⇒ 2

Hope my answer helps you✌️

Mark BRAINLIEST

Step-by-step explanation:

The answer of the question number 1 is b

The answer of the question number 2 is also c

The answer of the question number 3 is b

The answer of the question number 4 is a

1)

The volume of the rectangular prism is 297 in³.

Option B is the correct answer.

2)

The volume of the rectangular prism is 216 in³.

Option C is the correct answer.

3)

The volume of a cylinder is 8491 mm³

Option B is the correct answer.

4)

The volume of a cylinder is 1146 mm³.

Option D is the correct answer.

A prism is a three-dimensional object.

There are triangular prism and rectangular prism.

We have,

1)

The volume of the rectangular prism.

= length x width x height

= 11 x 9 x 3

= 297 in³

2)

The volume of the rectangular prism.

= 1/2 x base x height x length

= 1/2 x 2 x 12 x 18

= 216 in³

3)

Radius = 13 mm

Height = 16 mm

The volume of a cylinder.

= πr²h

= 3.14 x 13 x 13 x 16

= 8490.56

= 8591 mm³

4)

Diameter = 16 mm

Radius = 8 mm

Height = 5.7 mm

The volume of a cylinder.

= πr²h

= 3.14 x 8 x 8 x 5.7

=  1145.47

= 1146 mm³

Thus,

The volume of the rectangular prism is 297 in³.

The volume of the rectangular prism is 216 in³.

The volume of a cylinder is 8591 mm³

The volume of a cylinder is 1146 mm³.

Learn more about prism here:

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Answer:

In vertex form: y = 1(x - (-3))² + 7

Vertex: Minimum (-3, 7)

Explanation:

Vertex form: y = a(x - h)² + k

Completing square (rules) :

1st rule: (x + d)² = x² + 2dx + d²    and   (x - d)² = x² - 2dx + d²

2nd rule: x² + 2dx = (x + d)² - d²   and  x² - 2dx = (x - d)² - d²

Given equation:

y = x² + 6x + 16

y = x² + 2(3)x + 3² + 7

y = (x + 3)² + 7

Into vertex form:

y = 1(x - (-3))² + 7

From this identify:

a = 1, h = -3, k = 7

Solution, vertex of this equation: Minimum (-3, 7)

Answer: He has made $72 this week

Step-by-step explanation:

We can set up the equation of Y = 9x where Y is how much he made and X is how many hours he worked.

We can simply plug in 8 hours for x to get Y=9(8) where Y=72.

Answer:

The boys have a bigger range in height than the girls

Step-by-step explanation:

Answer:

The coordinates of the other end is \((16,2)\)

Step-by-step explanation:

Given

\(End 1: (-6,2)\)

\(Midpoint: (5,2)\)

Required

Find the coordinates of the other end

Let Midpoint be represented by (x,y);

(x,y) = (5,2) is calculated as thus

\((x,y) = (\frac{x_1 + x_2}{2},\frac{y_1 + y_2}{2})\)

So

\(x = \frac{x_1 + x_2}{2}\) and \(y = \frac{y_1 + y_2}{2}\)

Where \((x_1,y_1) = (-6,2)\) and \((x,y) = (5,2)\)

So, we're solving for \((x_2,y_2)\)

Solving for \(x_2\)

\(x = \frac{x_1 + x_2}{2}\)

Substitute 5 for x and -6 for x₁

\(5 = \frac{-6 + x_2}{2}\)

Multiply both sides by 2

\(2 * 5 = \frac{-6 + x_2}{2} * 2\)

\(10 = -6 + x_2\)

Add 6 to both sides

\(6 + 10 = -6 +6 + x_2\)

\(x_2 = 16\)

Solving for \(y_2\)

\(y = \frac{y_1 + y_2}{2}\)

Substitute 2 for y and 2 for y₁

\(2 = \frac{2 + y_2}{2}\)

Multiply both sides by 2

\(2 * 2 = \frac{2 + y_2}{2} * 2\)

\(4 = 2 + y_2\)

Subtract 2 from both sides

\(4 - 2 = 2 - 2 + y_2\)

\(y_2 = 2\)

\((x_2,y_2) = (16,2)\)

Hence, the coordinates of the other end is \((16,2)\)

Answer:

The answer is D.

Step-by-step explanation:

y = mx + b

C = 5/9 (F - 32)

C = 5/9F - 5/9 (32)

Option (D) is correct.

Answer:

The letters are the first letter of their corresponding numbers (one, two, three = o, t, t). This means that the next terms will be t, e, t, t, f, f, s, s, e, n, t and so on.

Answer: .28, .16, 0, .34

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

6w+25 = 6

6x6=36

Answer:

No solutions exist because the situation describes two lines that have the same slope and different y-intercepts.

Step-by-step explanation:

Small number = S

Number = N

N = 2S + 3

N = 2(S+1)

N = N

2S + 3 = 2(S + 1)

2S + 3 = 2S + 2

-2S         -2S

3 = 2

No solutions

Therefore...

"No solutions exist because the situation describes two lines that have the same slope and different y-intercepts." is correct

Answer:

78.5 cm2

Step-by-step explanation:

The formula for the area of a circle is A = πr^2, where π (pi) is a mathematical constant approximately equal to 3.14, and r is the radius of the circle.

Since the diameter of the circle is 10, we can find the radius by dividing the diameter by 2:

r = d/2 = 10/2 = 5

Now we can plug in the value of r into the formula:

A = πr^2 = 3.14 x 5^2 = 78.5

Therefore, the area of the circle with a diameter of 10 is approximately 78.5 square units.

The area of the given picture frame is 177.5 cm².

Given,

Length of square = 16 cm

The diameter of the circle cut out = 10 cm

We have to calculate the area of the picture frame.

First, we will find out the area of the square.

The area of the square = a² = 16 × 16 = 256 cm²

Now, we will find out the area of the circle that is being cut out from the square.

Area of the circle = πr² = 3.14 × 5² = 78.5 cm²

Then the area of the picture frame = Area of the square - the area of the circle

                                                    = 256 cm² - 78.5 cm²

                                                    = 177.5 cm²

Therefore, the required area of the square frame is 177.5 cm².

To learn more about Area:

https://brainly.com/question/27683633?referrer=searchResults

Answer:

the two accounts don't compare and account A earned 180

Step-by-step explanation:

interest =beginning amount or principal amount *rate *time in years /100 so that would be 1500*4*3/ 100 and 1500*6*1.9/100

Answer:

for number 12 the answer is 1.5

Step-by-step explanation:

5.5 - 4 = 1.5 (answer not equation)

EQUATION : 4 + 1.5 or 5.5 - 4 either or would work ig

Answer:

122/2=61mph

96/1.5=64mph

3 mph more

Answer:

3 Miles

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

4/3 * pi * r^3 is the formula.

Answer:

The scatter plot shows a (positive) Liner association.

Step-by-step explanation:

just by looking at the graph, you can see a positive correlation for each point, because they line up to form an almost straight line upward. I hope this helped!

Answer:

52°

Step-by-step explanation:

180-38-90=52

Answer:

Yeah it's 52.

I answered late lol.

Step-by-step explanation:

Answer:

31.06

Step-by-step explanation:

155.3/5

31.06

Answer:

31.06

Step-by-step explanation:

155.3/5=31.06

0 3 1. 0 6 0

5 1 5 5. 3 0 0

− 0      

 1 5        

− 1 5      

   0 5      

 −   5  

     0 3    

   −  0    

       3 0  

     − 3 0  

         0 0

       −  0

                       0

Answer:2456

Step-by-step explanation:

DO the math like 2x2

HI -

Answer: 80%

Step-by-step explanation:

#3 I got a different answer

#6 I think you accidentally put a negative sign.

#14 you made a mistake on 5 x 7

#16 for 46 - 29 i got 17

Let me know if I made a mistake bc I didn't do this on paper I did it in my head.

Answer:

1.

y+23=47

y+23-23=47-23

y=24

2.

0.25

in reduced fraction

0.25*100/100=25/100=¼

now in percent

¼*100=25%

3.

3[6 + 2(4 + 2) - 5] + 2²

Using BODMAS rule

3[6+2 of 6-5] +4

3[6+12-5]+4

3[18-5]+4

3 of 13+4

39+4

43

4.

\(\frac{x}{5} = \frac{60}{75}\)

doing crisscross multiplication

x=\( \frac{60*5}{75}\)

x=4

5.

- 3(8)(- 2)

=-3*8(-2)

=-24*-2

=+48

6.

120/- 6

= -20

7.

3x + 8 = 9x - 16

8+16=9x-3x

24=6x

x=24/6

x=4

8.

x/12 = - 6

doing crisscross multiplication

x=-12*6

x=-72

9. The area of a square is 64 square inches. How long is each side?

Solution:

Area of square =64 inches sqaure

length^2=64

Length =\( \sqrt{64}=8 \) inches

each side is 8 inches long.

10. Solve for a.

a - 9 = - 27

a-9+9=-27+9

a= -18

11.

96 - (- 58)

96+58

154

12. What is the value of x?

7x = 98

7x/7=98/7

x=14

13.

\(\left[\begin{array}{ccc}9&-6\\-1&3\\\end{array}\right] -\left[\begin{array}{ccc}-3&-0\\-8&-4\\\end{array}\right] \\=\left[\begin{array}{ccc}{9+3} &{-6+0}\\{-1+8}&3+4\\\end{array}\right] \\\left[\begin{array}{ccc}12&-6\\7&7\\\end{array}\right]\)

14. Simplify

5(5a + 3b - 6c + 7) + 4(2a - 5c)

opening bracket

25a+15b-30c+35+8a-20c

25a+8a+15b-30c-20c+35

33a+15b-50c+35

15. A pair of shoes has an original price of $60. What is the sales price  after 15 % discount?

Solution

we have

mark price =$60

discount =15%

Selling price =Mark price -discount% of Mark price

=60-15%*60

=$51

16.

46 + (- 29)

46-29

=17

17.

625,816+499,322

1,125,138

18. Find the area of this trapezoid.

we have

area of trapezoid =½*h*(a+b)

=½*7*(11+9)

=70 meter square

19. What is the value of x?

4x + 2x - 4 = 8

6x-4+4=8+4

6x=12

x=12/6

x=2

20.

0.008 * 0.906

=0.007248

Note : you got mistake in question no.16 and no. 13