Write the expression in the standard form a + bi.i10
A. -i
B. i
C. 1
D. -1
Answer: D
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Find only the rational zeros.f(x) = x4 + 9
A. 
, - 
B. 0
C. 3, -3, 
, -
D. No rational zeros
Solve the problem.Write an equation for the tangent line to the curve 
at the point 
A. 
+ 
= 
B. 
+ 
= 
C. 
+ 
= 1
D. 
+ 
= 1
Solve the problem.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 total income from the 5% and 6% investments is equal to the income from the 8% investment. Find the amount invested at each rate.
A. $8000 at 5%, $10,000 at 6%, $7000 at 8% B. $10,000 at 5%, $10,000 at 6%, $5000 at 8% C. $5000 at 5%, $10,000 at 6%, $10,000 at 8% D. $10,000 at 5%, $5000 at 6%, $10,000 at 8%
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. 
D. 