Use sets to solve the problem.Mrs. Bollo's second grade class of thirty students conducted a pet ownership survey. Results of the survey indicate that 8 students own a cat, 15 students own a dog, and 5 students own both a cat and a dog. How many of the students surveyed own no cats?
A. 27
B. 22
C. 15
D. 10
Answer: B
Mathematics
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Provide an appropriate response.Express the following in standard notation: 104
A. 10,000 B. 100 C. 40 D. 1000 E. none of the above
Mathematics
Write the number in scientific notation.0.000939
A. 9.39 × 10-3 B. 9.39 × 10-5 C. 9.39 × 104 D. 9.39 × 10-4
Mathematics
Use an analytic method to solve the equation.5x-2 - 23x-1 - 10 = 0
A. 
B. 
C. 
D. 
Mathematics
Find all values of ? in [0°, 360°) that satisfy the equation.
tan 
= -1
A. {150°} B. {120°} C. {330°} D. {300°}
Mathematics