Use the rules of exponents to simplify. Write the answer with positive exponents. Assume that all variables represent positive values.
A. y1/2
B. y5/3
C. y-1/2
D. y
Answer: A
Mathematics
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Use scientific notation to perform the following operations. Leave your answer in scientific notation.(5 × 10-5) ÷ (10 × 10-3)
A. 5.0 × 107 B. 2.0 × 10-2 C. 5.0 × 10-3 D. 2.0 × 108
Mathematics
Use the discriminant to determine the number of real solutions.25x2 + 10x + 1 = 0
A. One real solution B. Two real solutions C. No real solutions
Mathematics
Express as a single logarithm.3 loga (2x + 1) - 2 loga (2x - 1) + 2
A. loga (2x + 3)
B. loga 
C. loga 2(x + 1)
D. loga (2x + 1) + 2
Mathematics
Decide whether the equation is conditional, an identity, or a contradiction. Give the solution set.16m + 20 = 4(2m - 11)
A. Conditional; {3} B. Contradiction; ? C. Conditional; {-8} D. Identity; {all real numbers}
Mathematics