Solve by completing the square. Give exact solutions. Simplify radicals and reduce.x2 + 16x + 53 = 0
A. -8 ± 
B. 8 + 
C. -16 + 
D. 8 ± 
Answer: A
Mathematics
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Use a product-to-sum identity to rewrite the expression.sin 7° sin 45°
A. 0.5(cos (38°) + cos(52°)) B. 0.5(cos (38°) - cos(52°)) C. 0.5(sin(52°) - sin (38°)) D. 0.5(sin (38°) + sin(52°))
Mathematics
Provide an appropriate response.Write the following sum using summation notation: 
- 
a + 
a2 - 
a3 . . . + 
a14
What will be an ideal response?
Mathematics
Choose one of the four lines graphed which most closely resembles the graph of the given equation.y = 4x
A. 
B. 
C. 
D. 
Mathematics
Write the decimal as a fraction or mixed number in lowest terms.0.416
A. 
B. 
C. 
D. 
Mathematics