Write and solve an equation to find the percent increase or decrease. Round your answer to the nearest tenth of a percent, if necessary.The price of a printer was reduced from $400 to $180. What was the percent of decrease?
A. 122.2%
B. 55%
C. 60%
D. 45%
Answer: B
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The following table shows the velocity V, in meters per second, of a rock t seconds after it is thrown downward near the surface of Venus. Round your answer to two decimal places, if necessary. t 3 6 9 12 V 51 77.49 103.98 130.47? A: Complete a table of changes to show that the data are linear.B: Find a linear model for the data.C: Explain in practical terms the meaning of the initial value of the linear function you found in part B.
What will be an ideal response?
Decide whether the argument is an example of inductive or deductive reasoning.Practice makes perfect. Therefore, if I practice, I'll be perfect.
A. Deductive B. Inductive
Solve the problem.There are 3 cards in a hat; one is a king, one is a queen, and one is an ace. Two cards are to be selected at random without replacement. Using a tree diagram , obtain the sample space for the experiment. Then, find the probability that a king and a queen are selected.
A. 
B. 0
C. 
D. 
A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given.A = ?r2 for r = 9, ? = 3.14
A. A = 28.26 B. A = 12.14 C. A = 88.74 D. A = 254.34