Answer:
Step 4 is incorrect he did not divide correctly from step3 to step 4
Step-by-step explanation:
The circumference of a circle is
C = 2 * pi *r
We know the circumference is 12 pi
12pi = 2 pi *r
Divide each side by 2 pi
12 pi/2pi = 2pi r/ 2pi
6 = r
From step 3 The student did not cancel the pi in the top and the bottom on the right hand side to isolate r
In step 4 he got 6 =pi r instead of pi
Answer:
29.5 inches squared
Step-by-step explanation:
The formula for the area of a trapezoid is 
,
so base1 = 14 inches and base2 = 30 inches
since there is a right angle, you know that the height must equal the length of the left side, so the height = 15 inches
then, 14+30+15=59 and 59/2=29.5
therefore, your answer would be 29.5 inches squared
Answer:
"How much did Wang Yong pay each month" answer: $170
"How long did it take Wang Yong to pay back his entire debt?" answer: 50 months
Answer:
the answer is (-2,2)
Step-by-step explanation:
The answer is C. 5x - 22y + 8z
