2 years ago

Find the angular speed of a turning gear if 12.5 revolutions are completed in 8 seconds.

Mathematics

1 answer:

evablogger [386]2 years ago

6 0

(12.5*2*Pi) / 8 = 3.125*Pi [1/s]

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Determine f(-1) if the graph of f(x) is given below.

-BARSIC- [3]

Answer:

$f(-1) = -2$

Step-by-step explanation:

Given

The attached graph

Required

$f(-1)$

This is the point where

$x = -1$

On the attached graph;

$f(x) = -2$ when $x = -1$

Hence:

$f(-1) = -2$

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2 years ago

Does anyone know how to do 15 and 16?????

Julli [10]

This is how you answer number 15 and 16

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What percent is 36 of 90?<br><br> can u show it by doing a cross multiply method?

algol13

Answer:

40 percent is right answer of 36 of 90

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1 year ago

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Find the median of the data set: -66, -48, -52, -42

olga2289 [7]

-66, -52, - 48, -42

If you can have 2 medians (since there is only 4 numbers), it is -52 and -48

If you can only have one,then i believe you choose -50, because it is in between -48 and -52

hope this helps

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2 years ago

Need help for 16) and 19) Solve each equation and check. Show all work please

Paladinen [302]

Step-by-step explanation:

You said the other one would be the last haha just kidding I'm glad to help.

16. $\frac{k}{2}=(-5)^2$

First, get rid of that parenthesis.

$\frac{k}{2}=25$

Now multiply both sides by 2 so that you can isolate k

$2(\frac{k}{2})=25*2$

$k=50$

19. $\frac{r}{3}=\frac{121}{11}$

This is a pretty easy one. If you didn't know, 121/11 is actually 11 :)

$\frac{r}{3}=11$

Simply multiply by 3 to isolate r :)

$3(\frac{r}{3})=11*3$

$r=33$

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