Simplify.(y2)7 ? (y4)8
A. y92
B. y64
C. y108
D. y46
Answer: D
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Find the y-intercepts for the parabola whose equation is given. If the y-intercepts are irrational, round your answers to the nearest tenth.y = -x2 + 19x - 90
A. y-intercept (0, -9) B. y-intercept (0, 90) C. y-intercept (0, 9) D. y-intercept (0, -90)
Solve the problem.An object is moving so that its displacement (in ft) from the equilibrium position is given by 
Find the velocity when 
A. -0.33 ft/s B. 1.1 ft/s C. -0.29 ft/s D. 0.29 ft/s
Assume that x, y, and a are positive numbers. Use the properties of logarithms to write the expression 
in terms of the logarithms of x and y.
?
A. 
B. ?
C. ?
D. ?
E. ?
Find the following using a calculator. Round to four decimal places.ln 0.999
A. -0.0004 B. 0.0010 C. 0.0004 D. -0.0010