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3 years ago

Help me I need help I need help

Mathematics

1 answer:

Licemer1 [7]3 years ago

3 0

Answer:

$\Huge\boxed{131.88}$

Step-by-step explanation:

Hello There!

First thing we want to do is find the formula for circumference of a circle

C = 2(3.14)r

where r = radius

we are given the diameter so we have to convert that into radius to do so we just divide by 2

42/2=21 so the radius equals 21 inches

now we just plug in 21 for r in the formula

$C = 2(3.14)21\\2*3.14=6.28\\6.28*21=131.88\\C=131.88$

So we can conclude that the circumference of the circle is 131.88 inches

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Find the instantaneous rate of change of f(x)= 4/x+3 at x=5

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Answer:

(5 , 3.8)

Step-by-step explanation:

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4 years ago

A mutual fund has total assets of $55,000,000 and total liabilities of $6,000,000. There are 1,500,000 shares outstanding. Find

tia_tia [17]

Answer:

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Explanation:

The net asset value can be calculated using the following equation:

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1 year ago

What is the average of 5/6, 2/3, and 1/2?

Sloan [31]

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4 years ago

Read 2 more answers

Hello can someone please help me in these question please?

Andrej [43]

Answer:

Answer: B

Step-by-step explanation:

$f(x) = \frac{12}{x} - 18 \\$

let its inverse be m :

$m = \frac{12}{x} - 18 \\ \\ m + 18= \frac{12}{x} \\ \\ x = \frac{12}{m + 18} \\ \\ { \boxed{ \boxed{f {}^{ - 1}(x) = \frac{12}{x + 18} }}}$

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3 years ago

Chris has a large collection of hockey cards and wants to get of rid of some of his hockey cards. He gives 2 cards away on day 1

WINSTONCH [101]

We define

day--------------------------X
hockey cards away ------------f(X)
He gives 2 cards away ----------------on day 1----------f(X)=2 X=1
He gives 4 cards away ----------------on day 2----------f(X)=4 X=2
He gives 8 cards away ----------------on day 3----------f(X)=8 X=3
the sequence of cards away 2,4,8,16,32,64,128,256,512,1024

f(x) = 2**(x)

The answers are

D Each day corresponds to a unique amount of hockey cards in this sequence.
And B The graph of this sequence would pass the vertical line test.

Each element of the Domain (X = day), relates to a single value of f(x) = number of hockey cards

That is, every value of X must have only one corresponding value of f(x)
(One value of y, for each input X)

This can also be checked by using the vertical line test.

If we plot f(x) and we draw vertical lines in the curve, we can verify that at every input the line intersects only one point of f(x)

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4 years ago