Determine whether the relation is a function.{(-4, -1), (-1, 1), (2, -4), (2, -1)}
A. Function
B. Not a function
Answer: B
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Multiply.(4r + 3s)(4r - 3s)
A. 16r2 - 9s2 B. 16r2 + 24rs - 9s2 C. 4r2 - 24rs - 9s2 D. 16r2 - 24rs - 9s2
Determine what signs on values of x and y would make the statement true. Assume that x and y are not 0.xy < 0
A. x and y have the same sign. B. x and y must be negative. C. x and y must be positive. D. x and y have different signs.
For the pair of functions, perform the indicated operation.f(x) = 7 - 7x, g(x) = -5x2 + 7
Find (f + g)(x).
A. -12x + 14 B. -12x2 - 7x + 14 C. -5x2 + 7 D. -5x2 - 7x + 14
A random sample of 150 shoppers revealed that 40% had heard of the new yogurt shop in the mall. Estimate the proportion of the population that knew about the yogurt store at the 95% confidence level.
What will be an ideal response?