Solve the problem.Among 170 households surveyed, 60 have a video camera, 46 have a snapshot camera, 29 have binoculars, 9 have a video camera and a snapshot camera, 8 have a snapshot camera and binoculars, and 4 have all three products. What is the probability that a household will have a snapshot camera or binoculars? Express the answer as a fraction.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the vertex for the parabola whose equation is given.y = x2 + 9x
A. (0, -9)
B. (- 
, - 
)
C. (0, 0)
D. (-9, -81)
Mathematics
Use a calculator to evaluate the expression. If necessary, round answers to the nearest thousandth. (1.42)4.2
A. 1.159 B. 4.361 C. 4.362 D. 4.371
Mathematics
Convert.7.4 mm = ___ m
A. 0.074 B. 740 C. 0.0074 D. 7400
Mathematics
Subtract. Simplify the result whenever possible.
- 
A. 
B. 
C. 
D. 
Mathematics