In the diagram below, the sum of the numbers in any 2 small circles is the number in the large circle between them. Complete the diagram so that the same pattern holds.
A. 
B. 
C. 
Answer: B
Mathematics
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Find the center of the hyperbola.25y2 - 16x2 = 400
A. (0, 4) B. (5, 0) C. (4, 5) D. (0, 0)
Mathematics
Answer the question.With the exponential function f(x) = ax, why can a not be equal to 1?
What will be an ideal response?
Mathematics
Solve the problem.The growth model f(t) = 
describes the population of a species of butterflies 
after they are introduced to a non-threatening habitat. How many butterflies are expected in the habitat after 17 months?
A. 358 butterflies B. 400 butterflies C. 6800 butterflies D. 850 butterflies
Mathematics
The value z varies directly as x and inversely as the square of y. The value z=11 when x=18 and y=36. Find the function z.
 figure 1.png)
Mathematics