Perform the indicated operation and, if possible, simplify.
A. 
B. 2x2
C. 6x
D. 2x
Answer: D
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Solve.Linda invests $25,000 for one year. Part is invested at 5%, another part at 6%, and the rest at 8%. The total income from all 3 investments is $1600. The income from the 5% and 6% investments is the same as the income from the 8% investment. Find the amount invested at each rate.
A. At 5%: $5000; at 6%: $10,000; at 8%: $10,000 B. At 5%: $8000; at 6%: $10,000; at 8%: $7000 C. At 5%: $10,000; at 6%: $10,000; at 8%: $5000 D. At 5%: $10,000; at 6%: $5000; at 8%: $10,000
Determine all solutions of the equation in radians.Find sin 
, given that cos ? = 
and ? terminates in 0 < ? < 90°.
A. 
B. 
C. 
D. 
Solve the problem.Jay drove 355 km at an average rate of 71 km/hr. How long did the trip take?
A. 5 hr
B. 
hr
C. 4 hr
D. 6 hr
Write an equation for the ellipse.foci at (±9, 0); x-intercepts (±15, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1