Solve the problem.How can $42,000 be invested, part at 4% annual interest and the remainder at 10% annual interest, so that the interest earned by the two accounts is equal at the end of the year?
A. $30,000 invested at 4%; $12,000 invested at 10%
B. $22,000 invested at 4%; $20,000 invested at 10%
C. $12,000 invested at 4%; $30,000 invested at 10%
D. $20,000 invested at 4%; $22,000 invested at 10%
Answer: A
Mathematics
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Simplify by combining like terms.
y - 
y
A. 
y
B. 
y
C. 
y
D. 
y
Mathematics
Evaluate the determinant:
Mathematics
Graph.f(x) = 2x2 - 2x - 6
A. 
B. 
C. 
D. 
Mathematics
Refer to the figure in which O is the center of the circle, ray PA is a tangent, m?BOC = 80°, PE = 10 ft, PD = 12 ft, PB = 19 ft, ER = 4 ft, ER = 4 ft, and BR = 5 ft.
Find m?DPE
(a) 20°
(b) 40°
(c) 60°
(d) 90°
Mathematics