Determine whether the relation is a function.{(3, 5), (3, 5), (4, -9), (9, 5), (11, 1)}

A. Yes
B. No


Answer: B

Mathematics

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Provide an appropriate response.In right triangle ABC, with right angle C, side a = 12, b = 16, and c = 20, find the tan B expressed as a fraction in lowest terms.

Fill in the blank(s) with the appropriate word(s).

Mathematics

Use a proportion to solve the problem.Under typical conditions, 1 ft of snow will melt to 2 in. of water. To how many inches of water will 2 ft of snow melt?

A. 4 in.
B. 3 in.
C. 3 in.
D. 5 in.

Mathematics

Set up the linear programming problem.A steel company produces two types of machine dies, part A and part B and is bound by the following constraints:? Part A requires 1 hour of casting time and 10 hours of firing time. ? Part B requires 4 hours of casting time and 3 hours of firing time.? The maximum number of hours per week available for casting and firing are 100 and 70, respectively.? The cost to the company is $0.75 per part A and $3.00 per part B. Total weekly costs cannot exceed $45.00.Let x = the number of part A produced in a week and  number of part B produced in a week. Write a system of three inequalities that describes these constraints.

A.

B.

C.

D.

Mathematics

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

A. = 
B. = IR(Ir - E) 
C. =  
D. =  

Mathematics