Find the mean of the following data. Round your answer to the nearest integer.
?
Interval
Frequency
4
2
4
6
9
A. 24
B. 64
C. 41
D. 60
E. 102
Answer: C
Mathematics
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Use the quadratic formula or graphing methods to solve the inequality.2x2 + 10x + 4 ? 0
A. 
? -4.562 ? x ? 
? -0.438
B. x ? 
? -4.562
C. x ? 
? -0.438
D. x ? 
? -4.562 or x ? 
? -0.438
Mathematics
Determine whether the given function is one-to-one. If it is one-to-one, find a formula for the inverse.f(x) = 
A. Not one-to-one
B. f-1(x) = (x + 1)2
C. f-1(x) = 
D. f-1(x) = x2 - 1, x ? 0
Mathematics
Find the distance d(P1, P2) between the points P1and P2.P1 = (-3, -7); P2 = (-7, 7)
A. 18
B. 180
C. 2
D. 180
Mathematics
Find the area A. Round the answer to three decimal places.
A. 150.796 m2 B. 6.283 m2 C. 75.398 m2 D. 48 m2
Mathematics