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3 years ago

Geometry Helps please (Only correct Answers only please) Thank you!

Mathematics

1 answer:

Elza [17]3 years ago

6 0

Answer:

37.68 units³

Step-by-step explanation:

To calculate the volume of a cone, the formula is:

V = π x r² x ( h / 3 )

Simply input the corresponding numbers into the equation:

V = π x ( 2 )² x ( 9 / 3 )

V = π x 4 x ( 3 )

V = π x 12

V = 3.14 x 12

V = 37.68 units³

If we use 3.14 for pi, the answer comes out to 37.68 units³

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3 years ago

Anika is 7 years older than Kit. If Kit is k years old, how old is Anika?

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Answer:

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3 years ago

Find cot θ if csc θ = square root of seventeen divided by four and tan θ > 0.

Yuliya22 [10]

Hello!
a = √17 - 4^2
a = 1

Cotangent theta is the adjacent over opposite. I used the Pythagorean Theorem to fine the adjacent side. The cotangent of theta is equal to 1/4.
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4 0

4 years ago

Read 2 more answers

Amy purchased 17 pencils and 18 pens for a fund-raiser at school and spent $61.50. Jocelyn purchased 10 pencils and 21 pens and

Alchen [17]

Let,
pencils be "x"
pens be "y"

According to the question,
17x + 18y = 61.50 ----------> equation (1)
10x + 21y = 57 -----------------> equation (2)

Now,
Taking equation (1),
17x + 18y = 61.50
18y = 61.50 - 17x
y = (61.50 - 17x ) / 18 -----> equation (3)

Now, substituting the value of "y" in equation (2), we get,

$10x+21( \frac{61.50-17x}{18} )=57$

$10x+7( \frac{61.50-17x}{6} )=57$

$10x+ \frac{430.50-119x}{6}=57$

$10x* \frac{6}{6} + \frac{430.50-119x}{6}=57$

$\frac{60x}{6} + \frac{430.50-119x}{6}=57$

$\frac{430.50+60x-119x}{6}=57$

$430.50-59x=57*6$

$430.50-59x=342$

$59x=430.50-342$

$x=\frac{88.5}{59}$

$x=1.5$

Now,
Substituting the value of "x" in equation (3), we get,

$y =\frac{61.50-17x}{18}$

$y =\frac{61.50-17(1.5)}{18}$

$y =\frac{61.50-22.5}{18}$

$y =\frac{39}{18}$

$y =2.17$

$y =2$ approx. (rounded)

So, Each pencil costs $1.5 and each pen costs $2.

6 0

4 years ago

Is this a positive or negative? 1. 2.x = 6

fiasKO [112]

The answer will be positive

3 0

3 years ago

Read 2 more answers