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2 years ago

12

A flood a creek's water level changes by −4 7/10 feet in 2 hours. What is the average change in the creek's water level per hour

?

1 answer:

dezoksy [38]2 years ago

3 0

Answer:

-2.35

Step-by-step explanation:

Divide -4.7/2 = -2.35

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Thank you so much im confused

svp [43]

Answer:

The period of this graph is 10

Step-by-step explanation:

The period is defined as the length of one wave of the function, in this case, the graph

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1 year ago

Calculus help! Using the mean value theorem!

marta [7]

$f$ is differentiable across its domain, so the MVT says there is some value of $c$ in the open interval $(a,b)$ such that

$f'(c)=\dfrac{f(b)-f(a)}{b-a}$

You have

$f(x)=Ax^2+Bx+C\implies f'(x)=2Ax+B$

so the equation above becomes

$2Ac+B=\dfrac{(Ab^2+Bb+C)-(Aa^2+Ba+C)}{b-a}$

Solve for $c$ .

$2Ac+B=\dfrac{A(b^2-a^2)+B(b-a)}{b-a}$
$2Ac+B=A(b+a)+B$
$2Ac=A(b+a)$
$c=\dfrac{b+a}2$

so $c$ is indeed the average of the endpoints, i.e. the midpoint.

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3 years ago

Which of the following is equivalent to 16 3/4 <br>6<br>8 <br>12 <br>64

cupoosta [38]

Answer:

I think the an 8..good luck

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3 years ago

Jonas buys a new hat that costs 9.05 Kara buys a new t shirt

maksim [4K]

What's are you trying to find?

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2 years ago

What is the value of a if a is equal to a×a×a=a+a+a

bagirrra123 [75]

Answer:

a = ±sqrt(3)

Step-by-step explanation:

a×a×a=a+a+a

Simplifying each side

a^3 = 3a

Divide each side by a

a^3 /a = 3a/a

a^2 = 3

Take the square root of each side

sqrt(a^2) = ±sqrt(3)

a = ±sqrt(3)

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2 years ago

Read 2 more answers