Find an equation of an ellipse satisfying the given conditions.Vertices: (-13, 0) and (13, 0); length of minor axis: 14
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: D
Mathematics
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Solve the problem.If a fair coin is tossed twice, the probability of both tosses coming up the same is
A. 
.
B. 
.
C. 
.
D. 
.
E. none of these
Mathematics
Find the LCM of the set of numbers.30, 40, 70
A. 120 B. 280 C. 840 D. 420
Mathematics
Multiply or divide as indicated. Make sure that your answer is reasonable by estimating first. 16.65 × 0.007
A. 0.22655 B. 1.21655 C. 0.21655 D. 0.11655
Mathematics
Add or subtract as indicated.Subtract.
A. 12x8 + 6x7 + 14x6 - 15 B. 12x8 + 6x7 + 14x6 - 1 C. -2x8 + 6x7 + 14x6 - 15 D. -2x8 - 12x7 - 2x6 - 1
Mathematics