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2 years ago

7

HELPPPP!!!!!!!!! Please

1 answer:

ArbitrLikvidat [17]2 years ago

3 0

Answer:

it's c

Step-by-step explanation:

don't know how to explain but pls trust me :)

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Which expression is irrational? 8 over 5. square root of 4 square root of 10. square root of 64

timama [110]

8/5 is rational. It is expressed as a ratio of two integers.

√4 = 2 = 2/1 . This is rational because it expressed as ratio of two integers.

√64 = 8. This is rational because it expressed as ratio of two integers.

√10 = 3.16227..... The decimal part does not end and it is irrational because it can not be expressed as ratio of two integers.

Therefore √10 is irrational.

3 0

3 years ago

Read 2 more answers

the cylinder has radius 4√3 and hight h. the total surface area of the cylinder is 56π√6. find the exact value of h giving the a

Arte-miy333 [17]

The area of the cylinder is a function of its height (h) and radius, ( $\mathbf{4\sqrt 3}$ )

The exact value of h is: $\mathbf{7\sqrt 2- 4\sqrt 3}$

The given parameters are:

$\mathbf{Area =56\pi\sqrt 6}$

$\mathbf{r=4\sqrt 3}$

The surface area of a cylinder is calculated as:

$\mathbf{Area = 2\pi rh + 2\pi r^2}$

Substitute values for Area

$\mathbf{56\pi\sqrt 6= 2\pi rh + 2\pi r^2}$

Divide through by pi

$\mathbf{56\sqrt 6= 2 rh + 2r^2}$

Substitute value for r

$\mathbf{56\sqrt 6= 2 (4\sqrt 3)h + 2(4\sqrt 3)^2}$

$\mathbf{56\sqrt 6= 8h\sqrt 3 + 2\times 48}$

$\mathbf{56\sqrt 6= 8h\sqrt 3 + 96}$

Collect like terms

$\mathbf{8h\sqrt 3 = 56\sqrt 6- 96}$

Make h the subject

$\mathbf{h = \frac{56\sqrt 6}{8\sqrt 3}- \frac{96}{8\sqrt 3}}$

$\mathbf{h = 7\sqrt 2- \frac{12}{\sqrt 3}}$

Rationalize

$\mathbf{h = 7\sqrt 2- \frac{12\sqrt 3}{3}}$

$\mathbf{h = 7\sqrt 2- 4\sqrt 3}$

Hence, the exact value of h is: $\mathbf{7\sqrt 2- 4\sqrt 3}$

Read more about surface areas t:

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2 years ago

Mr. Smythe needs gas for his car. If he spends $81 for 27 gallons, how much did he pay per gallon?

eimsori [14]

$3 dollars per gallon

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2 years ago

What is the 34th term of this sequence? -4, 3, 10, 17, 24

dolphi86 [110]

Answer:

238

Step-by-step explanation:

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2 years ago

Can the following three measures form a triangle? 5,17 and 9

navik [9.2K]

Answer:

No

Step-by-step explanation:

Because 17 is greater than 5 + 9.

To form a triangle, no side can be equal or greater than the sum of the other 2 sides.

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3 years ago