Simplify the numerical expression.
A. 
B. 4
C. 25
D. 
E. -16
Answer: E
Mathematics
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Find the exact value of the expression.sin 15°
A. - 
B. - 
C. 
D. 
Mathematics
Subtract the polynomials. Express your answer in standard form.(3x6 - 18x3 - 12) - (6x6 + 7x3 + 17)
A. -3x6 - 25x3 + 5 B. -57x9 C. -3x6 - 12x3 + 5 D. -3x6 - 25x3 - 29
Mathematics
Perform the indicated row operations on the following matrix. 
(-2)R1 + R2 ? R2
A. 
B. 
C. 
D. 
Mathematics
Find the x- and y-intercepts of the graph of the given equation.y = 2x2 + 7x - 4
A. x-intercepts: -4, 
; y-intercept: 4
B. x-intercepts: 4, - 
; y-intercept: -4
C. x-intercepts: -4, 
; y-intercept: -4
D. x-intercepts: -4, 1; y-intercept: -4
Mathematics