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larisa86 [58]
2 years ago
6

A car travels 2 5/8 miles in 3 1/2minutes at a constant speed. Which equation represents the distance, d, that the car travels i

n m minutes?
A. d = 0.75m
B. d = 113m
C. d = 3.5m
D. d = 2.625m
Mathematics
1 answer:
kakasveta [241]2 years ago
8 0

Answer:

Step-by-step explanation:

2⅝ miles/(3½ minutes) = (21/8 miles)/(7/2 minutes) = ¾ mile/minute

d = ¾m = 0.75m

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Answer:

f''(x)=36x^2+4

Step-by-step explanation:

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The power rule states that:

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This means that if you are taking the derivative of a function with powers, you can bring the power down and multiply it with the coefficient, then reduce the power by 1.

Another rule that we need to note is that the derivative of a constant is 0.

Let's apply the power rule to the function f(x).

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Bring the exponent down and multiply it with the coefficient. Then, reduce the power by 1.

  • \frac{d}{dx} (3x^4+2x^2-8x+4) = ((4)3x^4^-^1+(2)2x^2^-^1-(1)8x^1^-^1+(0)4)

Simplify the equation.

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Therefore, this is the 2nd derivative of the function f(x).

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