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3 years ago

A circle has a radius of 3. An Arc in this circle has a central angle of 20 degrees. What is the length of the arc?

Mathematics

1 answer:

Alex3 years ago

6 0

Answer:

Step-by-step explanation:

L=®/3602πr

L=20/360×2×3.14×3

L=1.04

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e-lub [12.9K]

On the first place we need to write the value of x, on the second place - the value of y.
{(-3,3), (0,0), (2,-2)}.

So, the answer is A.

4 0

3 years ago

A cube of side 6 cm is painted on all its sides. If it is sliced into 1 cubic cm cubes, how many 1 cubic cm cubes will have exac

const2013 [10]

Answer:

162 cubes

Step-by-step explanation:

48 cubes will have 2 sides.

8 cubes will have 3 sides.

216-54 = 162

4 0

3 years ago

HELP NUMBER 10 please!!!

frozen [14]

Note:

0.13 x 16500 = 2145

16500 - 2145 = 14355 for the first year.

Continue this for 7 more years to get your answer.

7 0

3 years ago

Which equations have the same slope as the graph above? Select all that apply.

borishaifa [10]

Given:

The graph given passes through two points (0, 2) and (-4, 8).

General Idea:

We can find the slope (m) of a line passing through two points say A and B using the below formula.

$A(x_1,y_1) \; and \; B(x_2,y_2) \; the\; two\; points\\ \\ Slope\; (m)\; =\; \frac{y_2-y_1}{x_2-x_1}$

Applying the concept:

Slope of the line given using the two points (0, 2) and (-4, 8).

$m=\frac{8-2}{-4-0}=\frac{6}{-4} =\frac{-3}{2}$

Out of the five options given , we need to check which options have slope as -6/4 or -3/2 by rewriting (if needed) the given to slope intercept form y =mx + b and compare the same.

Conclusion:

Rewriting the first option, the slope is -6/4 as shown below.

$y=\frac{12-6x}{4}=\frac{12}{4} -\frac{6x}{4} =-\frac{6}{4}x+3$

Rewriting the fourth option, the slope is -3/2 as show below.

$-4y=6x+4\\ \\ \frac{-4y}{-4}=\frac{6x}{-4}+\frac{4}{-4} \\ \\ y=\frac{-3}{2}x-1$

Rewriting the fifth option, the slope is -3/2 as shown below.

$2y+3x-5=0\\Subtract \; 3x\; and\; add\; 5\; on\; both\; sides\; of\; the\; equation\\ \\ 2y+3x-5-3x+5=0-3x+5\\ Combine\; like\; terms\\\\ 2y=-3x+5\\$