Graph the complex number.1 + j
A. 
B. 
C. 
D. 
Answer: C
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Solve the formula for the given variable.E = hv
for n
A. n = 
B. n = hv
C. n = 
D. n = 
- 
Solve using the problem-solving strategy for systems of linear equations.A retired couple has $170,000 to invest to obtain annual income. They want some of it invested in safe Certificates of Deposit yielding 7%. The rest they want to invest in AA bonds yielding 12% per year. How much should they invest in each to realize exactly $18,400 per year?
A. $140,000 at 12% and $30,000 at 7% B. $130,000 at 7% and $40,000 at 12% C. $120,000 at 7% and $50,000 at 12% D. $130,000 at 12% and $40,000 at 7%
Determine whether the proportion is true.
= 
A. True B. False
Find the equation of the tangent line to the curve when x has the given value.f(x) = 3x2 + 5x - 7 ; x = -2
A. y = -7x - 19
B. y = 
- 
C. y = 
+ 1
D. y = -7x + 28