Solve the following equation.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: A
Mathematics
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Solve the problem.A rectangular plot has area 126 yd2 with a perimeter of 46 yd. What is the length of the longest side?
A. 13 yd B. 14 yd C. 16 yd D. 12 yd
Mathematics
Provide an appropriate response.The standard normal probability density function is defined by f(x) = 
e- x2/2. (a) Use the fact that 
dx = 1 to show that 
dx =
.(b) Use the result in part (a) to show that the standard normal probability density function has variance 1.
What will be an ideal response?
Mathematics
Provide an appropriate response.By using a formula, the percent markup based on selling price can be converted to percent markup based on cost.
A. True B. False
Mathematics
In isosceles ?ACB, AC ? BC, in isosceles ?AFB, AF?BF. Prove that AEBC ? ?DAC.
Mathematics