PLEASE HELPPPP How do I mark brainiest?

Mathematics

2 answers:

motikmotik2 years ago

7 0

Answer:

There should be a crown that you can press which represents a brainiest

Step-by-step explanation:

vesna_86 [32]2 years ago

3 0

Answer: To mark brainliest you have to press the crown icon on the users answer

Step-by-step explanation:

hope this helps lad have a great day :)

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Help me out please thank you!

djverab [1.8K]

Answer:

$8^{18}$

Step-by-step explanation:

$8^15 / 8^-3\\=8^{15-(-3)}\\=8^{15+3}\\=8^{18}$

3 0

2 years ago

A right circular cylinder has a height of 2214 ft and a diameter 225 times its height.

Temka [501]

Answer:

Volume is 431288166770775 cubic feet.

Step-by-step explanation:

The height of the cylinder = 2214 ft

Let d be the diameter . Hence, we have

d = 225 × 2214 = 498150 ft

Hence, the radius should be half of diameter.

$r=\frac{d}{2}\\\\r=\frac{498150}{2}\\\\r=249075ft$

The volume of cylinder is given by

$V=\pi r^2h\\\\V=3.14(249075)^2(2214)\\\\V=431288166770775ft^3$

7 0

2 years ago

Read 2 more answers

A woman invests 12,500 in a savings account drawling interest that is compounded annually. Find the annual rate if the money gro

Anuta_ua [19.1K]

$\bf ~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\dotfill &\$14045\\ P=\textit{original amount deposited}\dotfill &\$12500\\ r=rate\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{annually, thus once} \end{array}\dotfill &1\\ t=years\dotfill &2 \end{cases}$

$\bf 14045=12500\left(1+\frac{r}{1}\right)^{1\cdot 2}\implies \cfrac{14045}{12500}=(1+r)^2\implies \cfrac{2809}{2500}=(1+r)^2 \\\\\\ \sqrt{\cfrac{2809}{2500}}=1+r\implies \cfrac{53}{50}=1+r\implies \cfrac{53}{50}-1=r\implies \cfrac{3}{50}=r \\\\\\ 0.06=r\implies \stackrel{\textit{converting it to percent format}}{0.06\cdot 100=r}\implies \stackrel{\%}{6}=r$