Use the method of your choice to find all real solutions of the equation.2x2 + 12x = - 7
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Calculate the arc length of the indicated portion of the curve r(t).r(t) = 11t3i + 2t3j + 10t3k, 1 ? t ? 3
A. 5850 B. 390 C. 1950 D. 130
Mathematics
Solve the system by the addition method, if possible.
?
What will be an ideal response?
Mathematics
Solve the equation by completing the square.x2 + 4x + 53 = 0
A. 2 ± 7i
B. -2 ± 
i
C. 5, -9
D. -2 ± 7i
Mathematics
Translate the sentence to an equation and then solve.Thirty-six more than the product of four and x yields forty-eight.
A. 4x + 36 = 48; 3 B. 4x + 48 = 36; 3 C. 36x + 48 = 4; 21 D. 4x + 48 = 36; -3
Mathematics