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OLga [1]
3 years ago
10

A construction crew is lengthening a road. The road started with a length of 54 miles, and the crew is adding 3 miles to the roa

d each day. Let L represent the total length of the road (in miles), and let D represent the number of days the crew has worked. Write an equation relating L to D . Then use this equation to find the total length of the road after the crew has worked 39 days.
Mathematics
1 answer:
patriot [66]3 years ago
6 0
53+3(D) = L

53 + 3(38) =L

53 +114 = L

167=L
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Math - Use unit conversion factor to convert the units.
nlexa [21]

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<u>Step-by-step explanation:</u>

Use the following conversions:

1 hour = 60 minutes

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2 pints = 1 quart

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4\ hours\times \dfrac{60\ minutes}{1\ hour}=\large\boxed{240\ minutes}\\\\\\\\5\ quarts \times \dfrac{2\ pints}{1\ quart}\times \dfrac{2\ cups}{1\ pint}=\large\boxed{20\ cups}\\\\\\\\2\ tons\times \dfrac{2000\ pounds}{1\ ton}=\large\boxed{4000\ pounds}

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3 years ago
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2 years ago
A polynomial has been factored, as shown below: f(x) = (x − 6)(x + 5)(x − 9) What are the zeros of the polynomial? (5 points)
soldi70 [24.7K]

<span>x=6</span>, <span>x=−5</span> or <span>x=9</span>

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Lapatulllka [165]

Answer:

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Step-by-step explanation:

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f[g(4)] is a composite function.

When calculating <u>composite functions</u>, always work from inside the brackets out.

Begin with g(4):  g(4) is the value of function g(x) when x = 4.

From inspection of the given table, g(4) = -6

Therefore, f[g(4)] = f(-6)

f(-6) is the value of function f(x) when x = -6.

From inspection of the given table, f(-6) = 4

Therefore, f[g(4)] = 4

3 0
1 year ago
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