Answer:
4/10
Step-by-step explanation:
it is equivalent because we multiplied both numerator and denominator by two and it keeps the ratio making it equivalent
<span>complement angles, sum equals 90
90 - 41 = 49
answer: 49 </span><span>is the measure of its complement </span>
52
Step-by-step explanation:
I don't really know what the other numbers are for but I'll just answer the first line.
Basically, you have to find what 10% of 130 is and multiply that number by 4.
130/10 = 13 (10% of 130)
4(13) = 52 (40% of 130)
You can verify this by typing in your calculator (130 x 0.40) and you should get 52.
You can also take 100% of 130 and substract by 60% of 130 to find 40%.
Diameter = Radius * 2
So radius of the circle is 25/2 = 12.5 feet
Area of a circle is:
A = πr² = 3.14 * 12.5² = 490 sq ft.