Make the denominator the same, so multiple 3/10 by 2, which produces 6/20. Take 6/20 and subtract 7/20 because adding a negative number is the same as subtracting a positive number. the Answer is -1/20.
The value of the 8 in that number is the ones
20+8q -88= -12
8q -68 = -12
8q = 68-12
8q = 56
q= 56/8
q= 7
Answer:
A≈7563.59
Step-by-step explanation:
Using the formulas
A=πrl+πr2
l=r2+h2
Solving forA
A=πr(r+h2+r2)=π·27·(27+562+272)≈7563.59277