Find the equation of the axis of symmetry.f(x) = x2 + 10x - 7
A. x = -32
B. x = 5
C. x = 10
D. x = -5
Answer: D
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Use the general multiplication rule to find the indicated probability.Two marbles are drawn without replacement from a box with 3 white, 2 green, 2 red, and 1 blue marble. Find the probability that both marbles are white.
A. 
B. 
C. 
D. 
Translate the phrase to an algebraic expression. Use "x" to represent "a number". A number subtracted from - 
A. x - 
B. 
- x
C. - 
- x
D. x - 
A plane leaves the airport at 4:00 p.m. and heads in the direction N10° E at a constant speed of 250 mi/h. Forty-five minutes later, a jet leaves the same airport and flies N 60° W at a constant speed of 450 mi/h. Find the distance between the plane and the jet at 5:30 p.m.
What will be an ideal response?
Simplify.2 + 28 ? 18 - (-19)
A. 67 B. 521 C. 525 D. 559