Solve the system of equations.7x + 7y + z = 1x + 8y + 8z = 89x + y + 9z = 9
A. {(1, -1, 1)}
B. {(0, 1, 0)}
C. {(0, 0, 1)}
D. {(-1, 1, 1)}
Answer: C
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Use the distributive property to multiply. Then, if possible, simplify the resulting expression.4(a + b)
A. 4ab B. 8ab C. 4a + 4b D. 4a + b
Solve the problem.A(x) = -0.015x3 + 1.05x gives the alcohol level in an average person's bloodstream x hours after drinking 8 oz of 100-proof whiskey. If the level exceeds 1.5 units, a person is legally drunk. Would a person be drunk after 4 hours?
A. Yes B. No
Solve the problem.Jameel went for a run of 9 miles. Estimate how many yards he ran.[Hint: first round the number of yards in one mile to the nearest thousand yards. Then finish the calculation.]
A. 18,000 yards B. 54,000 yards C. 45,000 yards D. 9000 yards
Find the absolute value.
A. 0 B. 11 C. -11 D. 22