Answer:
21
Step-by-step explanation:
They are all the x points on the graph like the range is the y
1. The Formula to getting the area of a circle is pi r^2= 3.14 times the radius squared. Plug in the number given in the question to get your answer.
2. The Circumference formula is 2pir which is 2 time 3.14 times the radius given. Plug in the number to get your answer.
3. This one is giving you the diameter, therefore you need to divide the diameter by 2 to get the radius (diameter is twice the size of radius) and plug in the radius into the first formula (3.14 times r^2) to get your answer.
× 2
2 =
Numerator × numerator
Denominator × denominator
×
90% x 18 = 16.2
Therefore, you answered about 16 questions correctly out of 18.
