Solve the inequality. Use algebra to solve the corresponding equation.x2 + 5x ? -4
A. [-4, -1]
B. (1, 4)
C. [1, 4]
D. (-?, 1] ? [4, ?)
Answer: A
Mathematics
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Find v ? u.v = 8i - 2j and u = -4i + 5j
A. -32i - 10j B. -22 C. -42 D. 4i + 3j
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Solve the problem. Round to the nearest hundredth.80 is 30% of what number?
A. 266.67 B. 24.00 C. 2666.70 D. 26.67
Mathematics
Solve the equation for x, where x is restricted to the given interval.y = 7 sin x, for x in 
A. x = 
arcsin y
B. x = 7 arcsin y
C. x = arcsin 7y
D. x = arcsin 
Mathematics
Indicate whether the expression is a polynomial or not a polynomial.-12x
A. Polynomial B. Not a polynomial
Mathematics