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2 years ago

If a cone had a volume of 3 pi and a radius of 1 then what is the height

Mathematics

1 answer:

gayaneshka [121]2 years ago

5 0

Answer:

it would be around 9 or something, im estimating.

Step-by-step explanation:

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Which matrix represents the system of equations shown below? 3x -7y=21

Serjik [45]

$\left\{\begin{array}{ccc}3x-7y=21\\4x+5y=11\end{array}\right \\\\.\ \ x\qquad y\ \ const.\\\left[\begin{array}{ccc}3&-7\\4&5\end{array}\right|\left\begin{array}{ccc}21\\11\end{array}\right]$

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3 years ago

What’s the answer to this???

AlexFokin [52]

Answer:

A i think

Step-by-step explanation:

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3 years ago

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How do you do this question?

mihalych1998 [28]

Answer:

C) π/6

Step-by-step explanation:

The area under the curve from x=-π/2 to x=k is 3 times the area under the curve from x=k to x=π/2.

$\int\limits^k_{-\frac{\pi }{2}} {cos\ x} \, dx = 3\int\limits^{\frac{\pi }{2}}_k {cos\ x} \, dx\\sin\ x\ |^{k}_{-\frac{\pi }{2}} = 3\ sin\ x\ |^{\frac{\pi }{2}}_k\\(sin\ k - (-1)) = 3\ (1 - sin\ k)\\sin\ k + 1 = 3 - 3\ sin\ k\\4\ sin\ k = 2\\sin\ k = \frac{1}{2}\\k = \frac{\pi}{6}$

Graph: desmos.com/calculator/mezlen9hb4

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3 years ago

(WILL GIVE BRAINLYIST IF ANSWER IS RIGHT!)

d1i1m1o1n [39]

Answer:

The answer is 1 and 4

Step-by-step explanation:

.25 x 4y = Y

36 divided by 4 = 9

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3 years ago

Find the area of the following parallelograms

Kay [80]

Answer:

Area of parallelogram: 1/2×h×sum of base lengths

Property of parallelogram: 2 parallel sides

Area = 1/2×4×(9+9)

= 36 cm^2

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2 years ago

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