exam
Maths Puzzle
Numerical Ability
factor this:
5x^2-15
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exam Other Question
Rewrite the following expression with positive exponents.
(32xy)^-3/7
This has me confused with the negative/positive exponents and the fraction exponent. Please help.
A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on 1-hour flight is 0.02. What is the probability that both will fail, neither will fail or one or the other will fail?