Find the probability. Round to the nearest ten-thousandth when necessary.A family has five children. The probability of having a girl is 1/2. What is the probability of having no girls?
A. 0.0313
B. 0.3126
C. 0.0625
D. 0.1563
Answer: A
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Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.(x14y7)1/7
A. x2 B. x14y C. x2y D. x2|y|
Simplify.
A. 
B. 
C. 
D. 
Find the amount of sales tax or tax rate and the total cost. Round money answers to the nearest cent if necessary.Amount of sale: $960 Tax rate: 7%
A. $67.20, $1027.20 B. $672.00, $1632.00 C. $57.60, $1017.60 D. $76.80, $1036.80
Solve the problem.A tightrope walker located at a certain point deflects the rope as indicated in the figure. If the weight of the tightrope walker is 115 pounds, how much tension is in each part of the rope? Round your answers to the nearest tenth. 
A. tension in the left part: -120.3 lb; tension in the right part: 57.7 lb B. tension in the left part: -142.9 lb; tension in the right part: 68.6 lb C. tension in the left part: -608.9 lb; tension in the right part: -616.4 lb D. tension in the left part: 881.3 lb; tension in the right part: 892.1 lb