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Ray Of Light [21]
3 years ago
5

On a drawing of a model airplane, the scale used is 1 in.:3 ft. How many feet would 4.5 inches represent?

Mathematics
1 answer:
AnnyKZ [126]3 years ago
6 0

Answer:

A. 13.5ft

Step-by-step explanation:

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A farmer examines a sample of 25 cartons of eggs and finds that 3 contains cracked eggs. What is the best prediction of the numb
sertanlavr [38]
I believe it's C) 60 because ideally it would be 3 for every 25, 20 x 25 = 200, so then you would do 3 x 20 = 60
3 0
3 years ago
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Harold wrote this equation to model the level of water in a pool over time. The variable x represents time in hours. f(x) = 3,50
lina2011 [118]

Answer:

The water level is falling.

The initial level of water in the pool was 3,500 units

The water was 2,600 units high after 4 hours.

Step-by-step explanation:

The given function that models the water level is

f(x)=3,500-225x

where x represents time in hours.

The function represents a straight line that has slope m=-225

Since the slope is negative, it means the water level is falling.

The initial level of water in the pool can found when we put x=0 into the function.

f(0)=3,500-225(0)


f(0)=3,500, hence the initial level is 3,500.


To determine the level of water in the pool after 14 hours, we put x=14 into the equation to get;

f(14)=3,500-225(14)

f(14)=3,500-3150


f(14)=350


To determine the water level after 4 hours we put x=4

f(4)=3,500-225(4)

f(4)=3,500-900

f(14)=2,600


4 0
3 years ago
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X2+2x +2 is equivalent to.
charle [14.2K]
////// The answer is: 4x+2
4 0
2 years ago
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. If f(x) = -7x, find f(a) =7a.
Dahasolnce [82]

Answer:

I think it is 14

Step-by-step explanation:

f(-7)

-7(a)=7a

-7a=7a

+7

a= 14

8 0
2 years ago
Me ayudan Porfavor!!!
ale4655 [162]

110ft²

Area of figure=(10×8)+(1/2×6×8)

=80+24

=112 ft²

=110 ft² (to nearest tenth)

7 0
2 years ago
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