Evaluate the expression. Round your result to two decimal places.
?
?
A. 3.54
B. 0.54
C. 1.54
D. 2.54
E. -0.46
Answer: C
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Find the indicated root and express the answer in standard form.Cube roots of -8i
A. 2i, - 
- i, 
- i
B. -2i, 
- i, 
- i
C. -2i, 
+ i, 
+ i
D. 2i, - 
+ i, - 
+ i
Prove the identity.
+ 
= 
What will be an ideal response?
Use the Binomial Theorem to expand the binomial and express the result in simplified form.(x - 2y)6
A. x6 - 12x5y - 64x4y2 - 40x3y3 - 64x2y4 - 12xy5 - 2y6 B. x6 - 12x5y + 24x4y2 - 36x3y3 + 24x2y4 - 12x y5 + 2y6 C. x6 - 12x5y - 48x4y2 - 144x3y3 - 192x2y4 - 192xy5 - 64y6 D. x6 - 12x5y + 60x4y2 - 160x3y3 + 240x2y4 - 192xy5 + 64y6
Solve.When making a telephone call using a calling card, a call lasting 3 minutes cost $0.80. A call lasting 12 minutes cost $1.70. Let y be the cost of making a call lasting x minutes using a calling card. Write a linear equation that models the cost of a making a call lasting x minutes.
A. y = 0.1x - 10.3
B. y = 10x - 
C. y = -0.1x + 1.1
D. y = 0.1x + 0.5