Find the sum of the squares of the deviations from the mean for the given data. 15, 20, 16, 18, 7, 8, 15, 20, 20, 23
A. 247.6
B. 4.9
C. 201.5
D. 16.2
Answer: A
Mathematics
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Solve the quadratic equation by factoring.
- 
x + 1 = 0
A. 
B. {12, 10}
C. {-1, 0}
D. {11, 11}
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Use mathematical induction to prove the following.
. . . 
= 
What will be an ideal response?
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Solve the problem.The temperature at the South Pole was -42° at 8 A.M. At 3 P.M., it was 36°. By how many degrees did the temperature rise?
A. 78° B. -78° C. 6° D. -6°
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The polynomial is given in one of the three forms: standard, root, or factored. Change it to the specified form. f(x) = 7(x + 4)
; write in factored form
A. f(x) = 7(x + 4)(7x - 8)
B. f(x) = (x + 4)(8x - 7)
C. f(x) = (x + 4)(7x - 8)
D. f(x) = 
(x + 4)(7x - 8)
Mathematics