Solve the equation or inequality.|5x - 4| + 5 < -2
A. 
B. ?
C. 
D. 
Answer: B
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Multiply, and then simplify if possible. Assume all variables represent positive real numbers.(
+ 
)(
- 
)
A. 10 - 2
B. 8
C. 10 - 2
D. 12
Write a word name for the number in the sentence.The weight of a full grown Great Pyrenees dog named Simba is 152.86 pounds.
A. One thousand fifty-two and eighty-six tenths B. One hundred fifty and two hundred eighty-six thousandths C. One hundred fifty-two and eighty-six hundredths D. One hundred fifty-two and eighty-six thousandths
Solve the problem.Suppose that a metal block is cooling so that its temperature T(in °C) is given by 
where t is in hours. How long has the cooling been taking place if the block now has a temperature of 100°C?
A. 1 hr B. 2 hr C. 8 hr D. 4 hr
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. x + y + z + w = 8 3x + 2y + z + 4w = 214x + 4y + 5z + 8w = 302x + 3y + 6z + 9w = 15
A. {(-3, 16, -6, 1)} B. {(-6w + 3, 9w + 7, -4w - 2, w)} C. {(5w + 11, -3w - 7, -3w + 4, w)} D. ?