Solve the system of equations using the substitution method.
A. (-2, -6)
B. (3, -6)
C. (-3, -5)
D. (-2, -5)
Answer: C
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Perform the indicated operation.Solve for x: 217x = 224(24x)4.
A. 24 B. 1 C. 6 D. 64
Determine whether the given set is empty.B is the set of natural numbers less than 2.
A. Empty B. Not empty
250 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 75 and standard deviation ? = 10.The third quartile of the scores on the exam is approximately
A. 94 points. B. 90 points. C. 82 points. D. 77 points. E. none of these
Answer the following statement(s) true (T) or false (F)
It is not possible to describe how to locate the square root of two precisely on a number line. Because the square root of two is irrational, the best that can be done is to approximate its position on the number line by calculating its decimal representation to several places.