Fill in the blank with one of the words or phrases listed below. 
In the proportion 
= 
, x ? 16 and 2 ? 7 are called 
.
A. right
B. ratio
C. congruent
D. cross products
Answer: D
Mathematics
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Give an ?-? proof of the limit fact.
= 
What will be an ideal response?
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Write a fraction to represent the shaded part of the figure.
A. 
B. 
C. 
D. 
Mathematics
Fill in the blank with one of the words or phrases listed below. 
Two angles that have a sum of 180° are called 
angles.
A. straight B. obtuse C. supplementary D. complementary
Mathematics
Use the formula A = P(1 + rt) to find the indicated quantity.A = $16,400; r = 10%; 90 days. Find P.
A. $16,810 B. $16,400 C. $16,000 D. $400.00
Mathematics