Identify the following as an equation or an expression.19 + 8(x - 8)
A. Expression
B. Equation
Answer: A
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Solve the problem. Use a calculator with an LN or a LOG key.The height in meters of girls of a certain tribe is approximated by 
where t is the girl's age in years and 
Estimate the height (to the nearest hundredth of a meter) of a girl of the tribe 4 years of age.
A. 1.12 m B. 0.52 m C. 0.77 m D. 0.96 m
Solve the problem.If a rock is thrown vertically upward from the top of a building 80 feet high with an initial velocity of 64 feet per second, the height, h, above ground level after t seconds is given by h = -16t2 + 64t + 80, where h is in feet and t is in seconds. How many seconds will it take the rock to hit the ground?
A. 1 sec B. 2 sec C. 5 sec D. 4 sec
Simplify. Write the expression as a single logarithm with a coefficient of 1.5logb(x) - logb(y)
A. logb(
)
B. logb(x5 - y)
C. logb(x5) ÷ logb(y)
D. logb
Find the real solutions of the equation.
= -2
A. {-32} B. {-33} C. {32} D. {33}