Use the discriminant to decide whether the equation represents a parabola, an ellipse, or a hyperbola.5x2 + 4xy + 5y2 + 8x - 2y = 0
A. Hyperbola
B. Parabola
C. Ellipse
Answer: C
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Using synthetic division, determine whether the numbers are zeros of the polynomial.5, -4; f(x) = x3 - 8x2 - 13x + 140
A. Yes; no B. No; no C. Yes; yes D. No; yes
Solve the problem.Helen Weller invested $11,000 in an account that pays 12% simple interest. How much additional money must be invested in an account that pays 15% simple interest so that the average return on the two investments amounts to 13%?
A. $11,000 B. $8000 C. $5500 D. $7000
Find the sum.-3 + 8
A. -5 B. -11 C. 5 D. 11
Estimate the sum, difference, product, or quotient involved in the problem.An advertisement states that television sets are on sale at B&G Electronics. The prices are: src="https://sciemce.com/media/4/ppg__rrr0708191005__f1q34g6.jpg" alt="" style="vertical-align: -4.0px;" /> 
set, 
set, 
set, 
$289.97; 
$519.97. Estimate to the nearest ten the total cost of one 
set and one 
set.
A. $740
B. $720
C. $710
D. $730