Find the largest open interval where the function is changing as requested.Decreasing y = 
+ 7
A. (0, ?)
B. (7, ?)
C. (-7, 0)
D. (-7, 7)
Answer: A
Mathematics
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Simplify completely.
A. 
B. 
C. 
D. 
Mathematics
Use the square root method to solve the equation. 2x2 = 30
A. ±15
B. 15
C. ±
D. 16
Mathematics
Multiply.(3x2 - 2x + 3)(x2 - 4x + 2)
A. 3x4 - 14x3 + 14x2 - 16x + 6 B. 3x4 - 12x3 + 17x2 - 16x + 6 C. 3x4 - 14x3 + 17x2 - 16x + 6 D. 3x4 - 12x3 + 14x2 - 16x + 6
Mathematics
Provide an appropriate response.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 dogs?
A. 20 B. 3 C. 15 D. 8
Mathematics