Use a combination of rules for exponents to simplify. Write answers with only positive exponents. Assume that all variables represent nonzero real numbers.
8
-7
A. 36r15
B. 
C. 6r
D. 36r
Answer: C
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Find the center of mass of a thin plate of constant density covering the given region.The region enclosed by the parabolas y = - x2 + 32 and y = x2
A. 
= 0, 
= 16
B. 
= 0, 
= 
C. 
= 16, 
= 0
D. 
= 0, 
= 32
Use the simple interest formula to determine the missing value. Round dollar amounts to the nearest cent and percents to the nearest hundredth when necessaryp = ?, r = 4%, t = 90 days, i = $117.65
A. p = $392.17 B. p = $11,944.74 C. p = $3921.67 D. p = $11,765.00
Find y:
16 8 ÄÄÄÄÄÄ + ÄÄÄÄÄÄ = 3 2y + 2 2y + 2 a. y = 2 b. y = 3 c. y = 4 d. y = 6 e. y = 8
Solve the problem.Jeff Rakhnovich has a simple discount note for $35,000 at an ordinary bank discount rate of 7%, for 60 days. What is the effective interest rate? Round to the nearest hundredth of a percent.
A. 7.08% B. 1.77% C. 1.18% D. 8.17%