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3 years ago

9

A cylinder has a surface area of 1850 square meters and a radius of 9 meters. Estimate the volume of the cylinder to the nearest

whole number.

1 answer:

ollegr [7]3 years ago

8 0

The volume would be approximately 6035 cubic meters.

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HELPPPPPPPPPPP!!!!!!!!! Oh

Luba_88 [7]

Answer:

We conclude that:

$3\cdot \:2\begin{pmatrix}-2&3&0\\ -4&2&6\\ 6&-5&6\end{pmatrix}=\begin{pmatrix}-12&18&0\\ -24&12&36\\ 36&-30&36\end{pmatrix}$

Hence, option B is correct.

Step-by-step explanation:

Given the expression

$3\times 2\begin{pmatrix}-2&3&0\\ \:-4&2&6\\ \:6&-5&6\end{pmatrix}$

solving

$3\times 2\begin{pmatrix}-2&3&0\\ \:-4&2&6\\ \:6&-5&6\end{pmatrix}$

Scalar Multiplication: Multiply each of the matrix elements by a scalar

$=\begin{pmatrix}3\cdot \:2\left(-2\right)&3\cdot \:2\cdot \:3&3\cdot \:2\cdot \:0\\ 3\cdot \:2\left(-4\right)&3\cdot \:2\cdot \:2&3\cdot \:2\cdot \:6\\ 3\cdot \:2\cdot \:6&3\cdot \:2\left(-5\right)&3\cdot \:2\cdot \:6\end{pmatrix}$

Simplify each element

$=\begin{pmatrix}-12&18&0\\ -24&12&36\\ 36&-30&36\end{pmatrix}$

Therefore, we conclude that:

$3\cdot \:2\begin{pmatrix}-2&3&0\\ -4&2&6\\ 6&-5&6\end{pmatrix}=\begin{pmatrix}-12&18&0\\ -24&12&36\\ 36&-30&36\end{pmatrix}$

Hence, option B is correct.

5 0

3 years ago

-55,-50,45,-40 what is the next 4 numbers

-BARSIC- [3]

-35, 30, -25, -20 is that right?

3 0

2 years ago

Given 4x − 8y = 8:

siniylev [52]

4x - 8y = 8
8y = 4x - 8
y = 1/2 x - 1

slope: 1/2
y-intercept:(0, -1)

Line perpendicular- negative reciprocal slope

y-(-1) = -2 (x-0) Hahaha I don't know what is the point slope form though hahaha not sure with this.

3 0

3 years ago

ABC is translated 6 units up and 3 units left to create ∆A'B'C'.

aivan3 [116]

B is the right answer for this

6 0

4 years ago

Triangle ABC is formed by two parallel lines and two other intersecting lines. Find the measure of each angle A, B, and of the t

Mamont248 [21]

Answer:

<u>A = 61°</u>

<u>B = 72°</u>

<u>C = 47°</u>

Step-by-step explanation:

Well, first of all, we can see that:

$61^{\circ}+47^{\circ}+B^{\circ}=180^{\circ}$

So, we can find angle B.

$B=180^{\circ}-47^{\circ}-61^{\circ}$

$B=72^{\circ}$

Now, we can see to that angle C is just 47°

Finally, we know that the sum of all angles in a triangle is 180°, so we have:

$B+A+C=180^{\circ}$

$A=180^{\circ}-47^{\circ}-72^{\circ}$

$A=61^{\circ}$

I hope it helps you!

6 0

3 years ago