Solve the quadratic equation by any method.2x2 + 4x = - 1
A. -4
B. 2, 4
C. 
D. -2, 0
Answer: C
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Find the first four nonzero terms in the Maclaurin series for the function.f(x) = sin x cos x
A. x + 
x3 - 
x5 + 
x7 + . . .
B. 1 + x - 
x2 - 
x3 + . . .
C. x - 
x3 + 
x5 - 
x7 + . . .
D. x - 
x3 + 
x5 - 
x7+ . . .
Provide an appropriate response..The three-part inequality a < x ? b means "a is less than x and x is less than or equal to b". Which of these inequalities is not satisfied by any real number x?(a) -5 < x ? -11(b) -8 < x ? -7(c) 0 < x ? 4(d) -2 < x ? 6
Fill in the blank(s) with the appropriate word(s).
Translate the sentence into a multiplication or division statement and solve.What is -11 times 19?
A. -209 B. 198 C. -198 D. 209
Provide an appropriate response.Without calculating, justify the statement 2 ? 18 ? 3 ? 17.
What will be an ideal response?