Solve.x2 - 6x - 40 = 0
A. -36, -4
B. -10, 4
C. 
, - 
D. 10, -4
Answer: D
Mathematics
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Solve the inequality, and then express in interval notation.x + 10 < 15
A. x ? 5; (-?, 5] B. x ? 5; [5, ?) C. x > 5; (5, ?) D. x < 5; (-?, 5)
Mathematics
Add.
A. 3670 B. 10,459 C. 9174 D. 26,148
Mathematics
Perform the indicated operations.( 9x4 + 7x2 - 7x ) - ( -8x3 + 5x2 - 7x - 4)
A. 9x4 - 8x3 + 12x2 - 4 B. 9x4 + 8x3 + 2x2 + 4 C. 10x4 + 9x3 + 12x2 + 4 D. 13x7 + 12x3
Mathematics
Write the number in scientific notation.3,127
A. 3.127 × 101 B. 3.127 × 104 C. 3.127 × 10-3 D. 3.127 × 103
Mathematics