Evaluate.-32 ÷ 4
A. 8
B. -8
C. -9
D. -7
Answer: B
Mathematics
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Solve the system of equations using substitution.
A. x = -4, y = 3; x = -3, y = -4; x = 3, y = -4; x = 4, y = 3 or (-4, 3), (-3, -4), (3, -4), (4, 3) B. x = -4, y = 3; x = 4, y = 3 or (-4, 3), (4, 3) C. x = -3, y = -4; x = 3, y = -4 or (-3, -4), (3, -4) D. x = 9, y = 68; x = 16, y = 243 or (9, 68), (16, 243)
Mathematics
Use the matrix capabilities of a graphing utility to find the determinant of the matrix
.
A. -12 B. -10 C. 7 D. -6 E. 4
Mathematics
Find the expected value of the probability density function to the nearest hundredth.f(x) = 
; [0, 5]
A. 2.40 B. 5.00 C. 12.50 D. 2.50
Mathematics
A. 
B. 
C. 
D. 
E. None of these
Mathematics