Rosa is making a poster that has a rainbow as part of design. Using a string and a pencil she makes a compass She draws a semicircle that has a radius of 18 inches. Using the same center point, she draws another semicircle that has a radius of 12 inches.

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)

125 yards

step-by-step explanation:

i take 75 plus 50.

1/8 3/16 3/4

step-by-step explanation:

you put them as all the same denominator and multiply

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value