Find the probability of the event. Express the answer as a percent chance.Choosing a diamond from a standard deck of cards.

A. 25%
B. 50%
C. 20%
D. 30%


Answer: A

Mathematics

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Solve.A meteor circles the earth in an elliptical orbit. The major axis of the elliptical orbit is 22 × 108  miles long and the minor axis is 12 × 108  miles long. If the earth is at one focus of the orbit what is the distance from the other focus?

A.   × 104 miles
B. 2 ×  × 104 miles
C. 2 ×  × 103 miles
D. 2 ×  × 108 miles

Mathematics

Estimate the percentage.50% of 2,460 

A. 1,250 B. 6,150 C. 615 D. 246 E. 123

Mathematics

Solve the inequality. Graph the solution set, and state the solution set in interval notation.|2k - 4| ? 7

A.

B.

C.  ? 

D.

Mathematics

Find the exact value of the expression.sin 20° cos 100° + cos 20° sin 100°

A.
B.
C. - 
D. - 

Mathematics