Solve the problem.An honest coin is tossed n times. Let the random variable X denote the number of heads tossed. How many tosses n are required to be 97.5% certain that X will be less than 
+ 20?
A. 100
B. 400
C. 800
D. 200
E. none of these
Answer: B
Mathematics
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Decide whether the statement translates into an expression or an equation.34% of a number decreased by 2.
A. Equation B. Expression
Mathematics
Raise the fraction to the indicated power.
3
A. 7
B. 
C. 
D. 2
Mathematics
Solve. If necessary, round to the nearest tenth.A flagpole casts a shadow of 29 feet. Nearby, a 6-foot tree casts a shadow of 2 feet. What is the height of the flagpole?
A. 348 ft B. 9.7 ft C. 87 ft D. 0.4 ft
Mathematics
Convert. Round to the nearest tenth.How many grams is a 7-ounce steak?
A. 198.5 g B. 246.4 g C. 31.8 g D. 3178.0 g
Mathematics