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
Answer: A
Mathematics
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Write the numerator and denominator of the fraction as a product of prime factors. Then use the prime factorization to write the fraction in lowest terms.
A. 
= 
B. 
= 
C. 
already in lowest terms
D. 
= 
Mathematics
Determine whether the expression is a polynomial. If it is, state how many terms and variables the polynomial contains. Then state its degree.2x-1y-3 - 4y
A. Yes; 2; 2; 4 B. Yes; 2; 2; -4 C. Yes; 1; 1; -3 D. No
Mathematics
Simplify the expression.- 
x + 
+ 
x - 5
A. - 
x - 
B. 
x + 
C. 
x - 
D. 
x - 
Mathematics
Solve the equation.
= 2
A. {20, 36} B. {36} C. {20, 36, 0} D. {20}
Mathematics