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4 years ago

which unit of measure would be appropriate for the volume of a cylinder that is 8 meters and has a radius of 4 meters

Mathematics

1 answer:

Nastasia [14]4 years ago

3 0

The unites to measure the volume of an object is what ever units you’re using cubed

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Ill mark brainiest please help me!!!!!!!!

IgorC [24]

Answer:

yes , 33^2 + 56^2 = 65^2 and obtuse

Step-by-step explanation:

<h2><u>Question 3</u></h2>

make use of the Pythagoras theorem

which is :

c^2 = a^2 + b^2

where c is the hypotenuse.

now put the values in the equation

65^2 = 56^2 + 33 ^2

the answer is :

<u></u>

<h2><u>Question 4</u></h2>

<u />

note if :

c^2 = a^2 + b^2 ----------- right

c^2 < a^2 + b^2------------ acute

c^2 > a^2 + b^2------------- obtuse

hence :

16 + 30 > 38

therefore its : <u>obtuse </u>

4 0

3 years ago

Use the recursive formula to answer the question.

nirvana33 [79]

Answer:

Step-by-step explanation:

\[d=a_{n}-a_{n-1}=4\]

a1=12

a7=a1+(7-1)d=12+6×4=12+24=36

6 0

3 years ago

Please help asap<br><br> solve x^4+5x^2+4=0

const2013 [10]

Answer:

$x=\pm i\text{ or }x=\pm2i$

Step-by-step explanation:

So we have the equation:

$x^4+5x^2+4=0$

Let's let u be equal to x². So:

$u^2+5u+4=0$

Factor:

$(u+1)(u+4)=0$

Zero Product Property:

$u+1=0\text{ or } u+4=0$

Subtract:

$u=-1\text{ or }u=-4$

Replace:

$x^2=-1\text{ or }x^2=-4$

Take square root:

$x=\pm\sqrt{-1}\text{ or }x=\pm\sqrt{-4$

Simplify:

$x=\pm i\text{ or }x=\pm2i$

7 0

3 years ago

The surface area of a rectangular prism is 198 cm2. Two of the dimensions are 3 cm and 9 cm. Find the measure of the other dimen

Alecsey [184]

In this question, it is given that two of the dimensions are 3 cm and 9 cm . Let the other dimension be x cm .

And the surface area of the rectangular prism is given. Now we use the formula of surface area of prism, which is

$A = 2(length* width + width * height + length * height )$

$198 = 2(3*9 + 3*x + 9*x)$

$99 = 27 + 12x$

Subtracting 27 to both sides,

$72 = 12x$

Dividing both sides by 12

$x = 6$

So the length of the remaining dimension is 6 cm .

7 0

3 years ago

I really need some help please!

Vlad1618 [11]

The answer is B.

I tried putting 9 for a and 7 for B. cos(9-7)+cos(9+7) = 2cos(9)cos(7)

3 0

3 years ago

Read 2 more answers