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2 years ago

7

Find the surface area of a cone when the radius is 4.5in and the height is 7.5in.

1 answer:

Komok [63]2 years ago

8 0

It is 187.27 for the sirfave area of a cone

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Please simplify will give brainliyest

dimulka [17.4K]

$\displaystyle\bf\\-\sqrt{m^4n^7}=\\\\=-\sqrt{m^{2\times2}\times n^{3\times2+1}}=\\\\=-\sqrt{m^{2\times2}\times n^{3\times2}\times n}}=\\\\=-\sqrt{\Big(m^2\Big)^2\times \Big(n^3\Big)^2\times n}}=\\\\=-\sqrt{\Big(m^2\times n^3\Big)^2\times n}}=\\\\=\boxed{\bf-m^2n^3\sqrt{n}}$

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3 years ago

Show all work to multiply quantity 3 plus the square root of negative 16 end quantity times quantity 6 minus the square root of

Veseljchak [2.6K]

Plus means addition and square root means √

3 plus the square root of negative 16: 3 + √-16

Minus means subtraction and square root means √

6 minus the square root of negative 64: 6 - √-64

Its asking you to multiply both quantities.

(3 + √-16) * (6 - √-64)

Best of Luck!

6 0

2 years ago

Read 2 more answers

5 and 3/8 + 2 and 2/8

zmey [24]

7and 5/8
5+2 is 7
3/8+2/8 is 5/8
7+5/8 is
7 and 5/8

4 0

2 years ago

Read 2 more answers

If Selena completes her homework with 100 percent accuracy, she's allowed

FrozenT [24]

Answer:

750

Step-by-step explanation:

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2 years ago

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If Kamila can do a job in 26 hours and Simon and Kamila working together can do the same job in 9 hours , find how long it takes

Kay [80]

Answer:

Simon takes approximately 13.76 hours to complete the job alone.

Step-by-step explanation:

We are given the following in the question:

Kamila can do a job in 26 hours

So, part of work done by Kamila in 1 hour =

$\dfrac{1}{26}$

Simon and Kamila working together can do the same job in 9 hours .

So, (Simon and Kamila)'s 1 hour work =

$\dfrac{1}{9}$

So, Simon's 1 hour work =

$\dfrac{1}{9}-\dfrac{1}{26}=\dfrac{17}{234}$

So,

Simon can do $\frac{17}{234}$ part of work in hour = 1

Time taken by Simon to complete the job alone =

$\dfrac{1}{\frac{17}{234}}=\dfrac{234}{17}\approx 13.76 \text{ hours}$

Thus, Simon takes approximately 13.76 hours to complete the job alone.

3 0

3 years ago