Write the vertex form of the equation of the parabola shown in the given graph. Assume a = ±1.
A. y = -(x + 1)2 - 3
B. y = -(x + 1)2 + 3
C. y = (x + 1)2 - 3
D. y = -(x - 1)2 - 3
Answer: A
Mathematics
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Use a tree diagram to answer the question.A family has 4 children. Using a tree diagram that shows how many ways the children could have been born, from first born to last born, determine how many ways the family could have had 2 boys and 2 girls.
A. 8 B. 1 C. 5 D. 6
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Using a calculator, evaluate to four decimal places.log 6664
A. 8.8045 B. 3.3237 C. 9.3045 D. 3.8237
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Establish the identity.cot2 
= 
What will be an ideal response?
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Find the domain of the function 
. Use interval notation to represent the domain.
A. 
B. 
C. 
D. 
E. none of these
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