Find the mean. If necessary, round to one decimal place.57, 38, 87, 23, 133, 89
A. 71.2
B. 85.4
C. 70.7
D. 71.7
Answer: A
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Find all real numbers that satisfy the equation. Round approximate answers to 2 decimal places.3 = 5 cos(x) + 2
A. 0.98 + 2k? or 5.30 + 2k? where k is any integer B. 1.37 + k? or 4.91 + k? where k is any integer C. 1.37 + 2k? or 7.65 + 2k? where k is any integer D. 1.37 + 2k? or 4.91 + 2k? where k is any integer
Answer the question.For f(x) = 8x + 7 and g(x) = 2
, what is the domain of g?f?
A. 
B. 
C. All real numbers
D. 
Collect like terms.6a - 2a + 4
A. -4a + 4 B. 8a C. 4a + 4 D. 8a + 4
Find the coordinates of the vertex and the intercepts of the quadratic function. When necessary, approximate the x-intercepts to the nearest tenth.s(x) = -x2 - 22x - 105
A. V(11, 16); I(0, -105); no x-intercepts B. V(-11, 16); I(0, -105); (-7, 0); (-15, 0) C. V(22, -105); I(0, 105); (15, 0); (7, 0) D. V(-22, -105); I(0, -105); (-22, 0); (22, 0)