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Lesechka [4]
2 years ago
6

Help me out yall PLEASE

Mathematics
1 answer:
Alenkinab [10]2 years ago
6 0
Answer: QRU and QRP

hope this helps :D
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A circle has a circumfernce of 13 it has a arc length of 11. What is the central angle of the arc in degrees
tatiyna

Answer: 304.6°

Step-by-step explanation:

First of all, using the circumference of the circle formula to find the radius of the circle.

Circumference of the circle = 13, ie

2πr = 13,

r = 13/2π ---------------------------- 1

Now getting the radius of the circle now, you now substitute for this in the formula for finding the length of an arc to get the central angle.

Arc length = 11 , ( 2πr0°/360) or (πr0°/180), so

πr0°/180 = 11 ------------------------ 2

Now solve for 0°, the central angle of the angle by making it the subject of the formula.

πr0° = 180 x 11

0° = 180 x 11

----------- ----------------- 3

πr

Now, put equation 1 in equation 3 and solve.

0° = 1980

--------

π x 13/2π

= 1980 x 2π

-----------

π.x. 13

= 1980 x 2

----------

13

= 3960/13

= 304.6°

Therefore, the central angle of the arc is 304.6°

Please be meticulous and understand the way I change the r in the denominator. It was the rule in fraction when dividing.

5 0
3 years ago
Use the distributive property to solve the equation.<br> 2 (x – 9) = 10
scoundrel [369]

Answer:

x = 14

Step-by-step explanation:

Hi,

To begin, distribute the 2 to the x and -9.

So...

2 ( x - 9 ) = 10

2x - 18 = 10

2x = 28

x = 14

I hope this helps :)

5 0
3 years ago
Is this graph a function or not a function
kiruha [24]

Answer:

In the graph of a circle, we can easily draw a straight vertical line passing through its center. This will hit the top and the bottom of the shape. Since this line hits two points, a circle's graph is not a function. We can also observe the equation of a circle.

5 0
3 years ago
Read 2 more answers
If triangle ABC Is dilated by a scale factor of 2.5 with a center of dilation at vortex be how does the area of A’B’C compared w
arlik [135]

Answer:

The area is 6.25 times greater.

Step-by-step explanation:

Each side of the triangle of the dilated triangle will be 2.5 times the length of the original sides.

The area will increase to 2.5^2 = 6.25 times.

7 0
3 years ago
I WILL GIVE BRAINLY! The surface of a table to be built will be in the shape shown below. The distance from the center of the sh
ki77a [65]

Answer:

  • draw lines center to vertex
  • 43.5 square inches
  • 261 square inches

Step-by-step explanation:

<u>Part A</u>:

The area can be decomposed into triangles by drawing a line from the center to each vertex of the hexagon.

__

<u>Part B</u>:

The area of each triangle is given by the triangle area formula:

  A = (1/2)bh

  A = (1/2)(10 in)(8.7 in) = 43.5 in²

__

<u>Part C</u>:

The area of the table top is 6 times the area of one triangle:

  surface area = 6(43.5 in²) = 261 in²

3 0
3 years ago
Read 2 more answers
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