Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. 6x - y + 2z = 38 7x - 7z = -7 7y + z = 34
A. (5, 6, 4)
B. (-5, 4, 10)
C. (5, 4, 6)
D. No solution
Answer: C
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Determine whether the source of error represents random or systematic error.A survey is conducted on smoking amongst teenagers. When questioned by adults, teenagers tend to underreport how much they smoke.
A. Systematic error B. Random error
Convert the given interest rate to decimal form if it is given as a percentage, and to a percentage if it is given in decimal form.0.25 to percent
A. 25% B. 2.25% C. 2.5% D. 0.0025%
Find the probability of the following card hands from a 52-card deck. In poker, aces are either high or low. A bridge hand is made up of 13 cards.In bridge, exactly 3 kings and exactly 3 queens
A. 0.00097 B. 0.00024 C. 0.00337 D. 0.00018
Solve the problem.A hill on a hiking trail goes up 56 feet over a distance of 145 feet. Find the grade of the hill.
A. 145
B. 
C. 
D. 56