Use factoring to solve the equation.x2 + 2x - 3 = 0
A. 1, -3
B. 
, - 
C. 0, -3
D. -1, 3
Answer: A
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The temperature C, in degrees, of a cup of coffee t minutes after it is poured is given by
.
A: What was the temperature of the coffee when it was poured?B. When did the temperature reach 154.69 degrees? Round your answer to the nearest minute.C: What is the temperature of the room in which the coffee sits?
What will be an ideal response?
Solve.A machinist worked 40 regular hours and 10 overtime hours during one week and earned $660. If his regular pay Is $480, what did he earn during overtime hours?
Fill in the blank(s) with the appropriate word(s).
Solve the system.
A. x = -3, y = 0, z = 4 B. x = 3, y = 0, z = -4 C. x = 0, y = -6, z = 1 D. x = 0, y = 6, z = -1
Evaluate as requested.Given that f(x) = 4
+ 5x, find f(2y).
A. 8
+ 10y
B. 7
+ 12y
C. 2
+ 2y
D. 4
+ 5y