Solve the equation.
= 9
A. 
B. 81
C. No solution
D. 9
Answer: D
Mathematics
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Use your estimation skills to pick the most reasonable answer. Do not solve the problem.8 - 1.25
A. 0.675 B. 6.75 C. 0.0675
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Solve the problem.The surface area of a balloon is given by S(r) = 4?r2, where r is the radius of the balloon. If the radius is increasing with time t, as the balloon is being blown up, according to the formula 
find the surface area S as a function of the time t.
A. S(r(t)) = 
?t3
B. S(r(t)) = 
?t9
C. S(r(t)) = 
?t6
D. S(r(t)) = 
?t6
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Use a graphing utility and the change-of-base formula to graph the function.y = log4(x + 2)
A. 
B. 
C. 
D. 
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Insert <, >, or = to make the statement true.65 _____ -11
A. = B. < C. >
Mathematics