Evaluate the combination.C(23, 1)
A. 23
B. 23! - 10
C. 23!
D. 2
Answer: A
Mathematics
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Find the product.(+10)(-11)
A. + 110 B. + 220 C. - 220 D. - 110
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Use identities to find the indicated value for each angle measure.sin ? = - 
, 
< ? < 2?
Find cos(2?).
A. - 
B. 
C. - 
D. 
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Match the description with the correct symbolic expression.a line with a positive slope
A. y = x7 B. -5x + 2y = 7 C. y = -4x + 7 D. x = -4
Mathematics
Solve the problem.How much pure acid should be mixed with 4 gallons of a 50% acid solution in order to get an 80% acid solution?
A. 2 gal B. 10 gal C. 16 gal D. 6 gal
Mathematics