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

A.
B.
C. - 
D. - 


Answer: B

Mathematics

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Solve the problem.There are 7 women running in a race. How many different ways could first, second, and third place finishers occur?

A. 35 B. 210 C. 343 D. 21

Mathematics

Write the compound statement in symbols.Let r = "The food is good," p = "I eat too much,"q = "I'll exercise."If the food is good and if I eat too much, then I'll exercise.

A. r ? (p ? q) B. r ? (p ? q) C. p ? (r ? q) D. (r ? p) ? q

Mathematics

Find the area.

A. 392 m2 B. 1316 m2  C. 658 m2  D. 476 m2 

Mathematics

Find the missing parts of the triangle. Round to the nearest tenth when necessary or to the nearest minute as appropriate.AB = 321 ydAC = 188 ydBC = 161 yd

A. A = 21.3°, B = 25.1°, C = 133.6° B. No triangle satisfies the given conditions. C. A = 25.1°, B = 21.3°, C = 133.6° D. A = 21.3°, B = 12.6°, C = 146.1°

Mathematics