Find the exact value of the expression.cos  cos  + sin  sin 

A. 1
B.
C.
D.


Answer: C

Mathematics

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Solve the problem.A man needs to repaint the two triangular gables on his house. Each gable is  long and high. How many gallons of paint will he need if a gallon of paint covers 100 sq. ft.? (You must buy whole gallons).

A. 208 gallons B. 5 gallons C. 416 gallons D. 3 gallons

Mathematics

Solve and graph. Write the solution set in interval notation.2 < 5x + 2 and 5x + 8 < 28

A. [0, 4)
 
B. (0, 4]
 
C. [0, 4]
 
D. (0, 4)
 

Mathematics

Solve the problem.A nurse administers two types of liquid antibiotics to a group of patients throughout the day. The nurse administers 22 teaspoons of one antibiotic and 31 teaspoons of the other. What is the total amount of liquid antibiotics administered in terms of tablespoons and teaspoons?

A. 17 teaspoons 2 tablespoons B. 17 tablespoons 1 teaspoon C. 17 tablespoons 2 teaspoons D. 26 tablespoons 2 teaspoons

Mathematics

On the real number line, label the points with the given coordinates.-4.75, -2, 0, 2.25  

A.

B.

C.

D.

Mathematics