Find the dot product.
?
?
A. 59
B. 55
C. 54
D. 58
E. 56
Answer: D
Mathematics
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Solve the problem.For a fixed amount of principal, the simple interest varies jointly with the rate and the time. If the simple interest is $1050 when the rate is 3% and the time is 7 years, find the simple interest when the rate is 5% and the time is 10 years.
A. $5000 B. $2500 C. $250 D. $2750
Mathematics
Factor the polynomial by substitution.10y4 - 19y2 - 15
A. (2y2 + 1)(5y2 - 15) B. (10y2 - 5)(y2 + 3) C. (5y - 3)(2y + 5) D. (2y2 - 5)(5y2 + 3)
Mathematics
Solve the inequality.x2 + 8x + 15 > 0
A. (-3, ?) B. (-?, -5) C. (-5, -3) D. (-?, -5) or (-3, ?)
Mathematics
Solve.2-4x + 12 = 16
A. {3} B. {2} C. {8} D. {-2}
Mathematics