Solve the cubic equation using factoring and the quadratic formula.x3 + 8 = 0
A. {-2, ±2i}
B. {-2, 1 ± i
}
C. {-2, 1 ± i
}
D. {-2, -1 ± 
}
Answer: C
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Find percent notation.9.0
A. 0.9% B. 900% C. 0.009% D. 90%
Solve the problem.When making a telephone call using a calling card, a call lasting 6 minutes cost $2.80. A call lasting 13 minutes cost $5.60. Let f(x) be the cost of making a call lasting x minutes using a calling card. Write a linear function that models the cost of making a call lasting x minutes.
A. f(x) = 0.4x + 0.4
B. f(x) = -0.4x + 5.2
C. f(x) = 
x - 
D. f(x) = 0.4x - 7.4
Pamela called 9 repair shops for quotes for auto repairs. The prices are $139, $150, $345, $99, $167, $155, $140, $200, and $160. She calculates to find there are no outliers in the data.
Answer the following statement true (T) or false (F)
Find the exact value of sin(2?) and cos(-2?).
 figure 2.png)