M is equal to 2 over 2.5. I don’t have enough information to figure out b
Answer:
p because variables are shown by letters not numbers
Hope this helped:)
Step-by-step explanation:
Answer:
18pi, or 56.52
Step-by-step explanation:
To start off, if you were to find the area of any whole circle, you would use the formula: pi x radius^2 = area of circle
However, since this is a semi-circle (half of a whole circle) you would divide the whole expression by 2, and then solve:
(pi x radius^2)/2 = area of semi-circle
(pi x 6^2)/2 = area of semi-circle
(36 x pi)/2 = area of semi-circle
18 x pi = area of semi-circle
18 x 3.14 = area of semi-circle
56.52 = area of semi-circle
<span>23</span>
<span>The angles a and b sum to 90°, so they are </span>complementary<span>. A trigonometric </span>identity<span> asserts that cos(90° - a) = sin (a) for any angle a, so cos(b) = sin (a) = </span><span>23</span><span>.</span>
