Find the greatest common factor, GCF, of the expressions.x9, x4
A. x36
B. x4
C. x5
D. x13
Answer: B
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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.Approximately how many students had test scores with standardized values between -0.675 and 1?
A. 107 B. 188 C. 147 D. 85 E. none of these
Solve the problem.Andy has some $10 bills and some $20 bills in a shoebox under his bed. He has a total of 38 bills worth a total of $510. How many $20 bills does he have?
A. 12 $20 bills B. 10 $20 bills C. 13 $20 bills D. 15 $20 bills
Solve.83x = 2x + 1 (Round to the nearest thousandth.)
A. 0.125 B. 1.333 C. 0.333 D. 0.500
Write the trinomial in standard form and then factor completely. If the trinomial cannot be factored, say it is prime.-7x + x2 - 60
A. (x + 12)(x - 5) B. (x + 12)(x + 5) C. (x - 12)(x - 5) D. (x - 12)(x + 5)