Determine the symmetries of the curve.r = 
, ? > 0
A. No symmetry
B. y-axis only
C. Origin only
D. x-axis only
Answer: A
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Solve the problem.The lifespan for a pair of walking shoes is normally distributed with a mean of 
steps and standard deviation of 
steps. If a manufacture produces 6000 pairs of these shoes, how many can be expected to last for at least 756,000 steps?
A. ? 1313 pairs B. ? 1271 pairs C. ? 1205 pairs D. ? 1391 pairs
Use the properties of angle measures to find the measure of each marked angle.Lines m and n are parallel.
a = (2x + 66)°b = (4x + 8)°
A. 151°, 151° B. 124°, 124° C. 29°, 29° D. 64°, 64°
Answer the question about the given function.Given the function f(x) = 
, list the x-intercepts, if any, of the graph of f.
A. (3, 0), (-3, 0)
B. (7, 0)
C. (-
, 0)
D. no x-intercepts
Find the average rate of change of the function as x changes from a to b.h(x)= 4x2; a = 3, b = 5
A. -32 B. 8 C. -8 D. 32