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3 years ago

Brainliest and 18 points Simultaneous equation 3x+2y=16, 2x-3y=2

1 answer:

7 0

Solve for the first variable in one of the equations, then substitute the result into the other equation. (4,2) or x=4 y=2

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What is the approximate volume of the cone?

Mnenie [13.5K]

Answer:

A. 1206 cm³

Step-by-step explanation:

We have a cone and are asked to find the approximate volume of it.

Keep in mind we are using π for 3.14

The forumla of a cone is V = πr² $\frac{h}{3}$

We know the radius = 12

and the height = 8

Substitute :

V = π12² $\frac{8}{3}$

Since these are multiplied with each other, we can first start off with multiplying the fraction, including with factoring 12²:

V = $\frac{2^4*3^2*8\pi }{3}$

Cancel the common factor - 3 :

V = $2^4 * 8 * 3\pi$

Multiply 8 and 3π :

V = $2^4 * 24\pi$

Solve the exponent :

V = $16 * 24\pi$

Multiply :

V = $384\pi$

Multiply for the final answer :

1205.76 cm³

which can be rounded up to

A. 1206 cm³

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3 years ago

What is the slope of line on the graph help pwease

Rus_ich [418]

Answer: is where that one dot is at home n the y-axis

Step-by-step explanation:

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3 years ago

Read 2 more answers

What is 4,000,275,000 in word form?

castortr0y [4]

Answer:

Four billion, two-hundred seventy five thousand.

4 0

3 years ago

Read 2 more answers

Pls answer I cannot do it

lisov135 [29]

a square number has and odd amount of numbers but 5to the power of 9 has an even amount of numbers

5×5×5×5×5×5×5×5×5

7 0

3 years ago

Help mee A scout troop are hiking in a forest. Starting from their base, they walk 4.2km south followed by 7.1km west. They want

slega [8]

Answer:

They should walk on a bearing of 59.4 degrees

Step-by-step explanation:

Given

$South = 4.2km$

$West = 7.1km$

Required

The bearing back to the base

The given question is illustrated with the attached image.

To do this, we simply calculate the measure of angle a using:

$\tan(a) = \frac{Opposite}{Adjacent}$

$\tan(a) = \frac{7.1}{4,2}$

$\tan(a) = 1.6905$

Take arctan of both sides

$a = \tan^{-1}(1.6905)$

$a = 59.4^o$

4 0

3 years ago

Brainliest and 18 points Simultaneous equation 3x+2y=16, 2x-3y=2​

Brainliest and 18 points Simultaneous equation 3x+2y=16, 2x-3y=2