heelp!I will have the exam next week. its proportion probability percentages estimatation mean&range
2 answers:
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Answer:
3.14
Step-by-step explanation:
The formula for the area of a circle is , where r is the radius. In this circle, the area would therefore be
. However, since this is only a quarter circle, you need to divide the area by 4, meaning that the area of this shape is 3.14 square units. Hope this helps!
<u>Answer:</u>
A = 70
B = 90
<u>Step-by-step explanation:</u>
We know that Car A travels 20 mph faster than Car B.
Assuming the speed of Car B to be x and the speed of Car A to be x+20, we can write:
Taking the reciprocal of both sides to make x the subject:
---> speed of Car A
Finding the speed of Car B:
Therefore, the speed of Car A = 70 and the speed of Car B = 90.