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2 years ago

Find the radius of a circle whose arc length is 55 m and its central angle measure if 5 radians

Mathematics

1 answer:

dimaraw [331]2 years ago

4 0

Answer:

Step-by-step explanation:

To solve this question, we can use the formula $S=\theta r$ , where $S$ is the arc length, $\theta$ is the central angle of the sector in radians, and $r$ is the radius.

In this situation, we know that $S=55$ and $\theta=5$

This means that $55=5r \longrightarrow \boxed{r=11}$

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alexandr402 [8]

From the
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3 years ago

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A student raises her grade average from a 75 to a 90. what was the percent of increase in the student's grade average? round you

Leona [35]

Here are some formulas...
percent increase = (new number - original number) / original number...* 100
percent decrease = (original number - new number) / original number...* 100
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percent increase = (90 - 75) / 70....* 100
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36.50 on sale for 32.12...since it goes from a larger number to a smaller number, u have a decrease
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percent decrease = (original number - new number) / original...* 100
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3 years ago

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Dvinal [7]

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3 years ago

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beks73 [17]

Answer:

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Step-by-step explanation:

-5c+d=2c

Add 5c to each side

-5c+5c+d=2c+5c

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Divide each side by 7

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3 years ago

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Help, this is a khan question so you may have done it before

Readme [11.4K]

Answer:

Eric, 9.8 meters.

Step-by-step explanation:

Use the distance formula with the given coordinate and each of the other coordinate.

$\sqrt{(10-3)^{2}+(8-2)^{2} }$ Brooke

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$\sqrt{(8-3)^{2}+(-6-2)^{2} }$ Cam

You'll see that Eric kicked the furthest distance with a distance of 9.8 meters.

Brooke kicked 9.2 meters and Cam kicked 9.4 meters. What does the distance formula really mean? When you solve for the distance between two points, you're really just creating a triangle between those two points, and you're actually looking for the hypotenuse. The slope that intersects your two points is the hypotenuse of the triangle you created.

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