The sample space is the pieces of paper taken two at a time with the numbers 1-7 written on them. What is the probability that the sum of the two numbers drawn is 8?
A. 
B. 
C. 
D. 
E. 0
Answer: A
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Provide an appropriate response.Solve the word problem using a system of equations with two unknowns:On one job, 3 master electricians and 5 apprentices earned $1,900. On a second job, 4 master electricians and 3 apprentices earned $1,800. How much did each master electrician and each apprentice earn per job?
Fill in the blank(s) with the appropriate word(s).
A point on the terminal side of an angle ? is given. Find the exact value of the indicated trigonometric function of ?.(-3, 4)Find sin ?.
A. 
B. - 
C. 
D. - 
Use a negative-angle identity to write an equivalent trigonometric expression involving a positive angle.sin 
A. sin 
B. -sin 
C. cos 
D. 1 - sin 
Write the coordinates for each point.
A. A(1, 0); B(6, -4) B. A(-1, 0); B(6, -4) C. A(-1, 0); B(-6, -4) D. A(-1, 1); B(6, -4)