Collect like terms.5x + 4 + 3x - 5
A. 2x - 1
B. (5x + 3x) + (4 - 5)
C. 8x - 1
D. 7
Answer: C
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Which of the following uses theoretical probability? ?
A. ?Finding the probability of an outcome when rolling three dice. B. ?Finding the probability of an outcome when tossing a coin and then spinning a spinner. C. ?Theoretical Probability is commonly used in gambling. D. ?Experimental Probability can be used to determine the likelihood of a meteor hitting the Earth. E. ?As the number of trial increases, the probability of an event in an experiment approaches the theoretical probability.
The argument has a true conclusion. Identify the argument as valid or invalid.All dogs have fur.All cats have fur. A cat is not a dog.
A. Valid B. Invalid
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. Use the graph to answer the question.
At what time was the temperature 79°?
A. 1 p.m. B. 6 p.m. C. 2 p.m. D. 12 p.m.
Solve the equation by factoring.3(x - 1) = -12x + 3(x2 - 7)
A. {3, -1, -6} B. {1, -6} C. {3, 1, 6} D. {-1, 6}