Graph the inequality on a number line. Then write the solution using interval notation.7.5 ? x
A. (-?, 7.5]
B. (-?, 7.5)
C. [7.5, ?)
D. (7.5, ?)
Answer: A
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Given matrices A and B, find the indicated matrix if possible.A = 
, B = 
Find AB.
A. 
B. AB is not defined.
C. 
D. 
Use the compound interest formulas A = P
nt and 
to solve.Suppose that you have $3000 to invest. Which investment yields the greater return over 5 years: 7.5% compounded continuously or 7.6% compounded semiannually?
A. Both investment plans yield the same return. B. $3000 invested at 7.6% compounded semiannually over 5 years yields the greater return. C. $3000 invested at 7.5% compounded continuously over 5 years yields the greater return.
Solve.Find the reciprocal of - 
.
A. 1
B. 
C. - 20
D. 20
Solve.If y varies directly as the cube of x, and y = 8 when x = 20, find y when x = 15.
A. 
B. 6
C. 
D. 