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Vinil7 [7]
2 years ago
8

what is the length of a tractor trailer if the volume of the trailer is 2000 cubic feet, the width is 7 feet 6 inches and the he

ight is 9 feet 6 inches
Mathematics
1 answer:
abruzzese [7]2 years ago
4 0
To begin, make sure all measurements are expressed in the same units:

7 feet 6 inches = 7.5 feet
9 feet 6 inches = 9.5 feet

Next, recall the formula for volume:

V = L * W * H

Volume is length times width times height.  Plug in the values you know and solve for the length:

2000 = L * 7.5 * 9.5
2000 = L * 71.25
L = 2000 ÷ 71.25
L ≈ <span>28.07
</span>
Rounded to the nearest whole number, the length of the tractor trailer is 28 feet.
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Given the value of cos 50° ? 0.6428, enter the sine of a complementary angle. Use an expression relating trigonometric ratios of
chubhunter [2.5K]

ANSWER

\sin(40)  \degree = 0.6428

EXPLANATION

The sine and cosine ratios are complementary.

This means that:

\cos(x \degree)  =  \sin(90  - x)  \degree

We were given that,

cos(50°)=0.6428

We want to find the sine of the complement of this angle.

\cos(50\degree)  =  \sin(90  -5 0)  \degree

\cos(50\degree)  =  \sin(40)  \degree

This implies that,

\sin(40)  \degree = 0.6428

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The ratio of Luke's age to Jack's age is 3:2. If Luke is 36, how old is Jack?
melamori03 [73]

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Jack is 24

Step-by-step explanation:

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2 years ago
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Find the equation of a line through (2,-4) and (-7,-4)
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Find slope : 
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\text {Slope = }  \dfrac{-4 - (-4)}{-7-2}  =  \dfrac{0}{-9}  = 0

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harkovskaia [24]

Answer:

x=65/14

Step-by-step explanation:

(x-10)/(x-4)=50/-6

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x-10=-25/3x+100/3

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x=(130/3)(3/28)

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3 years ago
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