Find the surface area of the figure. Use 3.14 as an approximation for ?. Round your result to the nearest tenth.A right circular cylinder with d = 11.6 m, h = 8.8 m
A. 531.8 m2
B. 371.5 m2
C. 265.9 m2
D. 929.5 m2
Answer: A
Mathematics
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Simplify.
A. -3x11 B. 3x11 C. 3x7 D. -3x7
Mathematics
Find the present value. Round to the nearest cent.To get $10,500 after6 years at 9% compounded annually
A. $4239.19 B. $6824.28 C. $6260.81 D. $5962.67
Mathematics
List all the elements of B that belong to the given set.B = {6, 
, -19, 0, 
, - 
, 2.8, 
} Whole numbers
A. {6, 0}
B. 
C. 
D. {6, -19, 0 }
Mathematics
The pH of a solution is given by the formula 
, where 
is the concentration of hydrogen ions in moles per liter in the solution. Use this formula to solve the problem.The pH value of a substance is 5.42. Find the hydrogen-ion concentration for this substance.
A. 263,026.8 B. 1.7 C. 0.2 D. 0.0000038
Mathematics