Solve the matrix equation.
= 
A. x = 2, y = 3, z = 5
B. x = -2, y = -3, z = 1
C. x = 2, y = -3, z = 1
D. x = -2, y = 3, z = 5
Answer: C
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Solve the problem.A poker hand consists of 5 cards dealt from an ordinary deck of 52 playing cards. How many different hands are there consisting of four cards of one suit and one card of another suit?
A. 715 B. 111,540 C. 9295 D. 37,180
Simplify the expression.
- 
A. 3
B. 
C. 
D. 0
A helicopter makes a forced landing at sea. The last radio signal received at station C gives the bearing of the helicopter from C as at an N 57.1º E altitude of 423 feet. An observer at C sights the helicopter and gives 
as 12.1º. How far will a rescue boat at A have to travel to reach any survivors at B (see the figure)? Apply the rules regarding the use of significant digits when determining your answer. Round your answer to the nearest ten feet.
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Distance rescue boat travels = __________ ft
Fill in the blank(s) with the appropriate word(s).
Write the phrase as a mathematical expression. Use x to represent the number. Combine like terms if possible.A number multiplied by -2, subtracted from the sum of 18 and four times the number.
A. 2x - 22 B. (18 + 4x) + (-2)x; 18 + 2x C. (18 + 4x) - (-2)x; 18 + 6x D. 2x - (18 + 4x); -2x - 18