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3 years ago

12

Nick and his family traveled by train to New York City. The clocks show when the train left the station and when it arrived in N

ew York City. How long was the train ride?

1 answer:

kirill [66]3 years ago

5 0

Answer:

Answer: 4 hr 15 min is the right answer

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Help! What is the average rate of change of f(x)=x^2+3x+6 over the interval -3 less-than-or-equal-to x less-than-or-equal-to 3?

Makovka662 [10]

Answer:

The average rate of change of the function over the interval is 5.

Step-by-step explanation:

Average rate of change of a function:

The average rate of change of a function f(x) over an interval [a,b] is given by:

$A = \frac{f(b)-f(a)}{b-a}$

Interval -3 less-than-or-equal-to x less-than-or-equal-to 3

This means that $a = -3, b = 3$

$f(x) = x^2 + 3x + 6$

So

$f(b) = f(3) = (3)^2 + 3(3) + 6 = 9 + 9 + 6 = 24$

$f(a) = f(-3) = (-3)^2 + 3(-3) + 6 = 9 - 9 + 6 = 6$

Average rate of change

$A = \frac{f(b)-f(a)}{b-a} = \frac{24+6}{3-(-3)} = \frac{30}{6} = 5$

The average rate of change of the function over the interval is 5.

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3 years ago

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3 years ago

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What are all the factors of 27

kicyunya [14]

The factors of 27 is as follows:
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4 years ago

Find the value of x.

sveticcg [70]

If 98 - 32 = 66,

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3 years ago

Which letter below is NOT made only of line segments?<br>D<br>Х<br>М<br>F

MrMuchimi

Answer:

D

Step-by-step explanation:

The letter D includes a curved line, unlike the letters X, M, and F.

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3 years ago