Answer: A. 1+8i
Step-by-step explanation:
edge
Ratio 1:3 can be written as 1/3
sale price / original price : 1/3 = x / 81
this is a proportion, so we cross multiply
(3)(x) = (1)(81)
3x = 81
x = 81/3
x = 27 <== sale price
and notice that 1/3 = 27/81...these are equivalent fractions because that is what proportions are, equivalent fractions
I'm guessing you want to know the circumference of a circle with a 20 yard radius or circumference?
circumference = 2 * PI * radius = 2 * PI * 20 =
<span>
<span>
<span>
125.66</span></span></span>
circumference = PI * diameter = PI * 20 =
<span>
<span>
<span>
62.83</span></span></span>
The answer is 63 because if you do 7 times 9, it would equal 63.
<span>The area of the triangle with height 12 inches and the base of 5 inches is 30 square inches. The area (A) of a triangle with height, h, and base, b, is: A = h * b / 2. We know that h = 12 in and that b = 5 in. Therefore, the area of this triangle will be: A = 12 in * 5 in / 2 = 60 in^2 / 2 = 30 in^2. The area of the triangle is 30 square inches.</span>
