Simplify the expression. Assume all variables represent nonnegative real numbers.
? 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Calculate the sum.(-58) + (+39)
A. 19 B. -97 C. -19 D. 97
Mathematics
Express the number in scientific notation.870,000
A. 8.7 × 105 B. 8.7 × 104 C. 8.7 × 10-4 D. 8.7 × 10-5
Mathematics
Answer the question.The probability of rolling an even number on a die is 
. Does this probability mean that, if you roll the die two times, one even number will appear? If not, what does it mean?
A. No, a probability of 
tells us nothing.
B. No. It means that if a die were rolled many times, about 
of the outcomes would be even numbers.
C. Yes.
D. No, but if the die was rolled 10 times, 5 outcomes would be even numbers.
Mathematics
Determine whether the ordered pair is a solution of the given equation.(-3, 2)2x + 3y = -12
A. No B. Yes
Mathematics