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2 years ago

Sectors of circle. east points, this is due tomorrow help is appreciated

Mathematics

1 answer:

PSYCHO15rus [73]2 years ago

5 0

By knowing the circumference of the base of the cone, we see that the radius is 4 centimeters.

<h3>How to find the radius of the cone?</h3>

Notice that in the first figure, the length of the arc AB is L = 8π cm.

Then, that arc will be the bottom part of the cone. Then we can see that the circumference of the base of the cone will be equal to the length of the arc.

And remember that for a circle of radius R (like the base of the cone), the circumference is:

C = 2πR.

Then we will get:

8π cm = C = 2πR

( 8π cm)/ 2π = R

4cm = R

The radius of the cone is 4cm.

If you want to learn more about circles:

brainly.com/question/1559324

#SPJ1

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More trig help pls explain how you do it thank you!!!

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Answer:

Step-by-step explanation:

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3 years ago

Rewrite this radicand as two factors, one of which is a perfect square. √60

Sphinxa [80]

Answer:

√4 * √15.

Step-by-step explanation:

√60

=√(4 * 15)

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3 years ago

Read 2 more answers

Solve the proportion x/12 = 5/15

uranmaximum [27]

Answer:

x=4

Step-by-step explanation:

Step 1: Cross-multiply

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Hope it helps:)

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2 years ago

Read 2 more answers

The coordinates of AB are A(-5, -1) and B(-2, -6). If AC : CB = 3 : 7, what are the coordinates of point C?

navik [9.2K]

$\text{Let the coordinates of AB are }A(-5,-1), \text{ and }B(-2, -6)\\
\\
\text{let the coordinate of th point C be (x, y), such that}\\
\\
AC:CB=3:7\\
\\
\text{By the section formula, we know that if P(x,y) lies on a line segment AB}\\
\text{where, }A(x_1,y_1), \ B(x_2,y_2)\text{ and satisfy the ratio, }AP:PB=m:n, \text{ then}$

$P=\left ( \frac{mx_2+nx_1}{m+n}, \ \frac{my_2+ny_1}{m+n} \right ).\\
\\
\text{So using this formula, we get for the given problem}\\
\\
C=\left ( \frac{3(-2)+7(-5)}{3+7}, \ \frac{3(-6)+7(-1)}{3+7} \right )\\
\\
\Rightarrow C=\left ( \frac{-6-35}{10}, \ \frac{-18-7}{10} \right )\\
\\
\Rightarrow C=\left ( \frac{-41}{10}, \ \frac{-25}{10} \right )\\
\\
\Rightarrow C=\left ( -4.1, \ -2.5 \right )$

Coordinates of the point C is: (-4.1, -2.5)

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3 years ago

Brainliest! please help <3

Viefleur [7K]

Answer: The answer is B

Step-by-step explanation:

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