Simplify. Write the answer with positive exponents.(x-7y9z3)(x-2y-2z5)
A.
B.
C.
D. x5y7z8
Answer: B
Mathematics
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Simplify the complex fraction.
A.
B.
C.
D. 12x(x + 4)
Mathematics
Change to an equivalent expression involving an exponent.logb r = s
A. rb = s B. br = s C. bs = r D. rs = b
Mathematics
Solve using the elimination method. x -
y = 1
x +
y = 3
A.
B. (1, 3)
C.
D.
Mathematics
Solve the problem.The following scatter diagram shows heights (in inches) of children and their ages.Height (inches) Age (years)Based on this data, how old do you think a child is who is about 39 inches tall?
A. 7 years B. 3 months C. 3 years D. 1 year
Mathematics