Solve the variation problem.According to Ohm's law, the electric current, in amperes (A), in a circuit varies directly as the voltage, in volts (V). When 24 V are applied, the current is 3 A. What is the current when 8 V are applied?
A. 1 A
B. 35 A
C. 8 A
D. 24.8 A
Answer: A
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Use a special product formula to simplify.(n + 4)(n - 4)
A. n2 - 8n + 16 B. n2 - 8n - 16 C. n2 - 8 D. n2 - 16
Answer the question.How would you find the empirical probability of getting a red card, if you are choosing a card from an ordinary deck of 52 cards?
A. Choose a card from a deck of 52 cards 52 times and then find the relative frequency of red cards. This would be done by dividing the number of times a red card has occurred by 52. B. Choose a card from a deck of 52 cards 2 times and then find the relative frequency of red cards. This would be done by dividing the number of times a red card has occurred by 2. C. Choose a card from a deck of 52 cards many times and then find the relative frequency of red cards. This would be done by dividing the number of times a red card has occurred by the total number of times a card was chosen. D. The empirical probability cannot be determined.
Evaluate the expression for the given replacement values.y + x for x = 3.2, y = 7
A. 3.9 B. 10.2 C. 3.8 D. 10.1
Simplify.24 -8(5)
A. 5 B. -24 C. 16 D. -56