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3 years ago

Help meee pleaseeeee

Mathematics

1 answer:

Wittaler [7]3 years ago

7 0

Answer:

1 x 10^21

Step-by-step explanation:

The initial number (2 x 10^4) is in scientific notation. Scientific notation must be written as: a X 10^n, where 0<a<10 and n is an integer. In this case, the number in scientific notation is being raised to the power of 5. When we raise a power by another power, we must multiply the power of all the terms by the additional power. In this case, we would get 2^5 x 10^20, this would be 10 x 10^20. Since the value of 'a' needs to be greater than 0 and less than 10, we need to move the decimal to the left and add another power to our 10: 1 x 10^21.

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A mountain climber climb 15840 feet on her way to the summit of a mountain how many miles did she climb?

zubka84 [21]

Hi there!

One mile is equal to 5280 feet. To figure out how many miles the mountain climber climbed, all we need to do is to divide 15840 by 5280. Doing this give us 3 miles.

Hope this helps!! :)
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3 years ago

Ms. Whodunit needs $15 000 to go on her dream vacation in four years. How much

lisov135 [29]

For each situation, we have that:

11) Using compound interest, it is found that she needs to invest $9,781.11 now.

12) Using the future value formula, it is found that you will have $728,753 after 48 years.

<h3>What is compound interest?</h3>

The amount of money earned, in compound interest, after t years, is given by:

$A(t) = P\left(1 + \frac{r}{n}\right)^{nt}$

In which:

A(t) is the amount of money after t years.

P is the principal(the initial sum of money).

r is the interest rate(as a decimal value).

n is the number of times that interest is compounded per year.

For this problem, the parameters are given as follows:

A(t) = 15000, t = 4, r = 0.055, n = 2.

Hence we solve for P to find the amount that needs to be invested.

$A(t) = P\left(1 + \frac{r}{n}\right)^{nt}$

$15000 = P\left(1 + \frac{0.055}{2}\right)^{2 \times 8}$

$(1.0275)^{16}P = 15000$

$P = \frac{15000}{(1.0275)^{16}}$

P = $9,718.11.

She needs to invest $9,781.11 now.

<h3>What is the future value formula?</h3>

It is given by:

$V(n) = P\left[\frac{(1 + r)^{n-1}}{r}\right]$

In which:

P is the payment.

n is the number of payments.

r is the interest rate.

For item 12, the parameters are given as follows:

P = 150, r = 0.07/12 = 0.005833, n = 48 x 12 = 576.

Hence the amount will be given by:

$V(n) = P\left[\frac{(1 + r)^{n-1}}{r}\right]$

$V(n) = 150\left[\frac{(1.005833)^{575}}{0.005833}\right]$

V(n) = $728,753.

You will have $728,753 after 48 years.

More can be learned about compound interest at brainly.com/question/25781328

#SPJ1

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2 years ago

Determine if the graph is a function or not.

Ipatiy [6.2K]

Answer:

No, it is not.

Step-by-step explanation:

Functions do not result in a 90 degree corner. Functions are 100% straight.

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3 years ago

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dem82 [27]

If you mean which is best to have then $6.40 it gives you the most amonut of money to spend on whatever! Hope this is helpful and if you could mark me as brainliest!

4 0

3 years ago

Read 2 more answers

Pls help with the last two

Vanyuwa [196]

Answer:

6 to 12 to 48

Step-by-step explanation:

that's the answer sorry if it's wrong

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3 years ago