3 years ago

Need help asap 15mins best

Mathematics

1 answer:

devlian [24]3 years ago

7 0

Answer:

find the angle KCO =57+63+x=180
120+x=180
x=180-120
x=60

You might be interested in

8 x 1/2 on a number line

Serga [27]

Answer:

Step-by-step explanation

5 0

3 years ago

if the area of a sector is 15pi square cm and the radius is 5cm find the measure of the central angle

GalinKa [24]

Given:

Area of a sector = $15\pi$

Radius = 5 cm

To find:

The central angle.

Solution:

The area of a sector is:

$A=\dfrac{1}{2}r^2\theta$

Where, r is the radius and $\theta$ is the central angle in radians.

Putting $A=15\pi, r=5$ in the above formula, we get

$15\pi=\dfrac{1}{2}(5)^2\theta$

Multiply both sides by 2.

$30\pi=25\theta$

Divide both sides by 25.

$\dfrac{30\pi}{25}=\theta$

$\dfrac{6\pi}{5}=\theta$

Therefore, the central angle in radians is $\theta=\dfrac{6\pi}{5}$ .

4 0

3 years ago

Go step by step to reduce the radical. 288

prohojiy [21]

Step-by-step explanation:

hope this helps if not well im rlly srry lol

5 0

4 years ago

Which expression is equivalent to -14-(-2)?<br> 14-2<br> O 14+2<br> 0 -14+2<br> 14-2

tino4ka555 [31]

Answer:

-14 +2

Step-by-step explanation:

because you would do kcc aka keep change change

you would keep -14 change the minus to a addition sign and change the -2 to a positive 2

8 0

3 years ago

What is the best estimate of the correlation coefficient for the data set?

maxonik [38]

Answer:

Step-by-step explanation:

A is right

4 0

3 years ago

Read 2 more answers