Find the volume and the surface area of the solid correct to the nearest unit.?
r = 4, h = 9.
?
?
A. 124 in 2 and 151 in 3
B. 25 in 2 and 324 in 3
C. 50 in 2 and 64 in 3
D. 254 in 2 and 729 in 3
E. 151 in 2 and 124 in 3
Answer: A
Mathematics
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250 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 75 and standard deviation ? = 10.Approximately how many students had test scores with standardized values between -2 and 0.675?
A. 125 B. 204 C. 181 D. 147 E. 85
Mathematics
Solve the equation.
+ 2 = 8
A. {64}
B. ?
C. 
D. 
Mathematics
Draw a line that has the given slope and 
m = -6, b = 5 
A. 
B. 
C. 
D. 
Mathematics
Determine whether the graph of the given equation is symmetric with respect to the x-axis, the y-axis, and/or the origin.y = 0.79x2 + |x| + 7
A. No symmetry B. y-axis C. Origin D. x-axis
Mathematics