Graph the polar equation.r = 
A. 
B. 
C. 
D. 
Answer: B
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Solve.Find the points of intersection of the ellipse 16x2 + 25y2 = 400 and the line 5y + 4x = 20.
A. (0, -5), (0, -4) B. (0, 4), (5,0) C. (0, -4), (-5, 0) D. (0, 5), (4, 0)
Multiply.4x2(6x7 + 7x3 + 10)
A. 24x9 + 7x3 + 10 B. 24x7 + 28x3 + 40 C. 24x9 + 28x5 D. 24x9 + 28x5 + 40x2
Solve the problem.Linda invests src="https://sciemce.com/media/4/ppg__tttt0516191133__f1q124g6.jpg" alt="" style="vertical-align: -4.0px;" /> and 
for one year. Part is invested at 
, another part at 
, and the rest at 
. The total income from all 3 investments is 
. The combined income from the 
investments is the same as the income from the 
investment. Find the amount invested at each rate.
A. $10,000 at 5%; $5000 at 6%; $10,000 at 8%
B. $8000 at 5%; $10,000 at 6%; $7000 at 8%
C. $5000 at 5%; $10,000 at 6%; $10,000 at 8%
D. $10,000 at 5%; $10,000 at 6%; $5000 at 8%
Find all values of x such that y = 0.y = 2[5x - (6x - 1)] - 7(x - 1)
A. {-1}
B. {1}
C. 
D. 