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aev [14]
3 years ago
13

Please help me understand this!

Mathematics
1 answer:
Fiesta28 [93]3 years ago
6 0
8 divided by 3.14
12•3.14
4• square root of 3.14 divided by 3.14
16 divided by 3.14
144•3.14 squared

Hope it helped:)
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An iron bar 468 3/4 inches long is to be cut into 6 1/4 inch sections. How many sections of this length will there be?
Serggg [28]
<span>468 3/4 divided by 6 1/4 = 75 sections</span>
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3 years ago
A person invests $1,150 in an account that earns 5% annual interest compounded continuously. Find when the value of the investme
AfilCa [17]

Answer:

11.1 years

Step-by-step explanation:

The formula for interest compounding continuously is:

A(t)=Pe^{rt}

Where A(t) is the amount after the compounding, P is the initial deposit, r is the interest rate in decimal form, and t is the time in years.  Filling in what we have looks like this:

2000=1150e^{{.05t}

We will simplify this first a bit by dividing 2000 by 1150 to get

1.739130435=e^{.05t}

To get that t out the exponential position it is currently in we have to take the natural log of both sides.  Since a natural log has a base of e, taking the natual log of e cancels both of them out.  They "undo" each other, for lack of a better way to explain it.  That leaves us with

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Taking the natural log of that decimal on our calculator gives us

.5533852383=.05t

Now divide both sides by .05 to get t = 11.06770477 which rounds to 11.1 years.

7 0
3 years ago
The elevation at ground level is 0 feet. An elevator starts 90 feet below ground level. After traveling for 15 seconds, the elev
sweet [91]
The answer is -4 2/3

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I am not sure about the ground level and negative difference but that it is what I was taught. Below ground level is negative and above is positive. Therefore the elevator traveled up and it traveled -4 2/3 per second.
It so either 4 2/3 or - 4 2/3 but pretty sure it is - 4 2/3.

:)))
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3 years ago
When dividing Fractions do you criss cross like when you multiply?
SVETLANKA909090 [29]

yes

Step-by-step explanation:

3 0
3 years ago
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