Find the exact value of the expression.sin 260° cos 20° - cos 260° sin 20°

A. - 
B. - 
C.
D. - 


Answer: B

Mathematics

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Solve the problem.Mari drops a ball from a height of 24 meters and notices that on each bounce the ball returns to about  of its previous height. About how far will ball travel before it comes to rest?

A. 52.8 m B. 144 m C. 264 m D. 288 m

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Determine whether the equation is quadratic.x2 - 3 = 2x

A. No B. Yes

Mathematics

Translate to a proportion and solve.  36.5% of 3800 is what?

A. 2433 B. 1900 C. 2413 D. 1387

Mathematics

Solve the formula for the specified variable.I =   for n

A. n = 
B. n = IR(Ir - E)
C. n = 
D. n = 

Mathematics