Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.
A. x15/4
B. 
C. x21/4
D. 
Answer: A
Mathematics
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E = IR. Find E when I = 3 mA and R = 10 ê.
What will be an ideal response?
Mathematics
Write the whole number in expanded form.65,824
A. 65,824 B. 40,000 + 2000 + 800 + 50 + 6 C. 6000 + 500 + 80 + 24 D. 60,000 + 5000 + 800 + 20 + 4
Mathematics
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.log5 10 - log5 2
A. log5 101/2 B. log5 8 C. 1 D. log5 20
Mathematics
Solve the problem.A student is told to work any 6 out of 10 questions on an exam. In how many different ways can he complete the exam? (The correctness of his answers has no bearing.)
A. 210 B. 5040 C. 24 D. 1,000,000
Mathematics