Simplify the expression. If any variables exist, assume that they are positive.7
+ 4
A. -19
B. 5
C. 11
D. 19
Answer: D
Mathematics
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Find two paths of approach from which one can conclude that the function has no limit as (x, y) approaches (0, 0).f(x, y) = 
What will be an ideal response?
Mathematics
Find the indicated probability. Round as indicated.A cat has a litter of 7 kittens. Find the probability that exactly 3 of the kittens are female. Assume that male and female births are equally likely. Estimate the probability to five decimal places if necessary.
A. 4.375 B. 0.27344 C. 0.00781 D. 0.54688
Mathematics
Divide.-28.5 ÷ 57
A. -0.5 B. 5 C. -1.5 D. -5
Mathematics
Suppose the triangles shown are similar, with angle A = angle D, angle B = angle E, and angle C = angle F. Answer the question.
What is the length of side EF?
A. 195
B. 
C. 39
D. 127
Mathematics