Perform the addition or subtraction.(7x2 + 4x + 10) - (-4x2 - 9)
A. 11x2 + 4x + 19
B. 11x2 + 13x + 10
C. 3x2 + 13x + 10
D. 3x2 + 4x + 19
Answer: A
Mathematics
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Solve the linear inequality. Graph the solution set on a number line, and express the solution using interval notation.-9x - 21 ? -3(2x + 9)
A. [2, ?)
B. (-?, 2)
C. [2, ?)
D. (-?, 2]
Mathematics
Solve the system by the addition method.2x2 + y2 = 66x2 + y2 = 41
A. {(5, 4), (5, -4), (-5, 4), (-5, -4)} B. {(5, 4), (-5, -4)} C. {(4, 5), (-4, -5)} D. {(4, 5), (-4, 5), (4, -5), (-4, -5)}
Mathematics
Multiply.18.28 × 1000
A. 1828 B. 182.8 C. 18.28000 D. 18,280
Mathematics
Determine if the given vectors are orthogonal, parallel, or neither.v = 4i + 3j, w = 8i + 6j
A. Orthogonal B. Neither C. Parallel
Mathematics