Simplify the expression. If the expression contains any variables, assume that they represent positive real numbers. Write your answer with only positive exponents.
A. x10
B. x7
C. x25
D. 
Answer: B
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Find a 95% confidence interval for the true population proportion.In a survey of 227 adults, 28% said that they had tried acupuncture at some point in their lives.
A. 24.7% to 31.3% B. 27.9% to 28.1% C. 27.6% to 28.4% D. 21.4% to 34.6%
Solve the problem.The parabola x2 = -28y is shifted 3 units up and 6 units to the right. Find the focus and directrix of the new parabola.
A. Focus: (-4, 6); Directrix: x = 10 B. Focus: (6, -4); Directrix: y = -10 C. Focus: (6, 10); Directrix: y = 10 D. Focus: (6, -4); Directrix: y = 10
Determine whether the number is divisible by 2, 3, 5, and/or 10.5037
A. 2, 3 B. 3 C. 3, 5 D. 2
Graph the function by starting with a function from the library of functions and then using the techniques of shifting, compressing, stretching, and/or reflecting.g(x) = - 4(x + 3)2 + 5
A. 
B. 
C. 
D. 