Solve by addition or substitution. x - 5y = -46-4x - 6y = -50
A. (1, 10)
B. (-1, 9)
C. (-2, 10)
D. ?
Answer: B
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Determine whether the growth (or decay) is linear or exponential, and answer the associated question.The value of your car is decreasing by 13% per year. If the car is worth $10,840 today, what will it be worth in two years?
A. Exponential; $9476.60 B. Linear; $12,249.20 C. Exponential; $8204.80 D. Linear; $13,658.40
Determine whether or not one or more pairs of twin primes exist between the pair of numbers given. If so, identify the twin primes.99 and 105
A. No B. 103, 105 C. 101, 103, 105 D. 101, 103
Use counting to determine the whole number that corresponds to the cardinality of the set.A = {x?x is a day in the week}
A. n(A) = 7 B. n(A) = 5 C. n(A) = 1 D. n(A) = 52
Find the approximate value of x using a scientific calculator. Round to six decimal places.log x = -1.4707
A. 0.03383 B. 4.352281 C. 29.559698 D. 0.712738