Fill in the blank with one of the words or phrases listed below. 
The graph of x2 + k has vertex 
.
A. (0, k)
B. (h, k)
C. ±
D. (h, 0)
Answer: A
Mathematics
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For the pair of functions, find the indicated sum, difference, product, or quotient.Find (f ? g)(4) when f(x) = x - 1 and g(x) = -5x2 + 18x + 3.
A. -15 B. -25 C. -385 D. 273
Mathematics
Tell which set or sets the number belongs to: natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers.-63
A. irrational, real B. whole, real C. real D. integers, rational, real
Mathematics
Solve the formula for the specified variable.M = ?r2hd for r
A. r = 
B. r = 
C. r = ±
D. r = 
Mathematics
Three homes are located as shown. If a well is to be placed so it can serve all three homes and must be equidistant from all three, how far is the well from each home?
Mathematics