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Yuri [45]
2 years ago
6

Jamal owns a parking garage and is trying to find the relationship between hour of the day and number of cars in the garage. He

finds that between 4 am and 10 am he can model this with a linear relationship. The equation for this model is y = 3.96x + 2. How many cars were in the garage at 4 am.
A) 1

B) 2

C) 3

D) 4
Mathematics
2 answers:
makkiz [27]2 years ago
8 0
I really think its B first i though it was c but its V
Harlamova29_29 [7]2 years ago
6 0

Answer:

b) 2 i think ! If im right Please give me brainlyist! Ty! (btw i worked out the problamo so im right!

Step-by-step explanation:

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A. 60 degrees is the answer
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A cylinder has a radius of 40 ft and a height of 17 ft. What is the exact surface area of the cylinder?
Georgia [21]

we know that

surface area of the cylinder=2*{area of the base}+perimeter of base*height

area of the base=pi*r²

r=40 ft

Area of base=pi*40²

Area of the base=1600*pi ft²


Perimeter of the base=2*pi*r

Perimeter of the base=2*pi*40

Perimeter of the base=80*pi ft


surface area of the cylinder=2*1600*pi+80*pi*17

surface area=4560*pi ft²


therefore

the answer is the option

4560π ft2

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3 years ago
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What are the coordinates of the y-intercept of the line y = -2x + 7?
Mashcka [7]

Answer:

C. (0, 7)

Step-by-step explanation:

Just use a graphing calculator.

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3 years ago
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Graph the data in the table. Which kind of function best models the data? Write an equation to model the data. quadratic; y = 2.
Oksanka [162]

Answer:

Option (1)

Step-by-step explanation:

x               -2              -1                 0                    1                   2

y               10            2.5                0                  2.5                3.0

Ist difference,

d_1=y_2-y_1

    =2.5-10=-7.5

d_2=y_3-y_2

    =0-2.5

    = -2.5

d_3=y_4-y_3

    =2.5-0

    = 2.5

d_4=y_5-y_4

    =10.0-2.5

    = 7.5

2nd difference,

x_1=d_2-d_1

    =-2.5+7.5

    = 5

x_2=d_3-d_2

    =2.5+2.5

    = 5

x_3=d_4-d_3

    =7.5-2.5

    = 5

Since 2nd difference is common, given table represents a quadratic equation.

Let the equation is,

y = ax²+ bx + c

For a point (0, 0) passing through the quadratic equation,

0 = c

Therefore, quadratic equation is y = ax² + bx

Since ordered pair (-1, 2.5) passes through the graph of the function,

2.5 = a(-1)² + b(-1)

a - b = 2.5 ------(1)

For another point (1, 2.5)

2.5 = a(1)² + b(1)

a + b = 2.5 ------(2)

By adding equations (1) and (2),

2a = 5

a = 2.5

and from equation (2)→ y = 0

Therefore, equation of the quadratic function given in the table is y = 2.5x²

Option (1) is the answer.

8 0
3 years ago
What is 6 divided by 22.02
Sidana [21]

Answer:

Step-by-step explanation:

Reduce the expression, if possible, by cancelling the common factors.

0.27

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2 years ago
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