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jasenka [17]
3 years ago
5

The equation y= 39 4x describes the number of miles y that an airplane travels in x minutes. What is the constant speed of the a

irplane in miles per​ minute? How many miles does the airplane travel in 4 ​hours?
Mathematics
1 answer:
7nadin3 [17]3 years ago
7 0
Speed: distance traveled in a given time

y=distance ( given in miles).
x = time (given in minutes)

Speed = y/x

y = 39.4x

By rearranging this y/x =39.4 ( is the constant speed). don’t forget this is mile/minutes

There are 4 x 60 minutes in 4 hours

Hence, you are asked the distance (y) in 240 min

y = 39.4x
y = 39.4 miles/minutes x (240) minutes

y = 9456 miles
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2 years ago
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ipn [44]

Answer:

g(x)=x+1

The problem:

Find g(x) if h(x)=(f \circ g)(x),

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Step-by-step explanation:

h(x)=(f \circ g)(x)

h(x)=f(g(x))

Replace x in f(x)=\sqrt[3]{x+2} with g(x) since we are asked to find f(g(x)):

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\sqrt[3]{x+1+2}=\sqrt[3]{g(x)+2}

This implies that x+1=g(x)

Let's check:

(f \circ g)(x)

f(g(x))

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\sqrt[3]{x+3}  which is the required result for h(x).

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3 years ago
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or for denominator a1=3,d=4-3=1

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3 years ago
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Im not sure if im correct but I think the answer is 82 hours.

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