Graph the given function. Identify the vertex and the intercepts.y = - x2 - 6x - 9
A. Vertex: (-3, 0)
x-intercept: -3
y-intercept: -9
B. Vertex: (-3, 0)
x-intercept: -3
y-intercept: 9
C. Vertex: (3, 0)
x-intercept: 3
y-intercept: 9
D. Vertex: (3, 0)
x-intercept: 3
y-intercept: -9
Answer: A
Mathematics
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Write the number in scientific notation.2,070,000
A. 2.7 × 106 B. 2.07 × 104 C. 2.07 × 105 D. 2.07 × 106
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Solve the problem.Center City East Parking Garage has a capacity of 252 cars more than Center City West Parking Garage. If the combined capacity for the two garages is 1218 cars, find the capacity for each garage.
A.
| Center City East: | 483 cars |
B.
| Center City East: | 745 cars |
C.
| Center City East: | 473 cars |
D.
| Center City East: | 735 cars |
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Find the exact value by using a half-angle identity.cos 
A. - 
B. - 
C. 
D. 
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Use the quadratic formula to solve the quadratic equation.x2 = 9 - 4x
A. x = -2 ± 2
B. x = -1 ± 
C. x = -2 ± 
D. x = 2 + 
Mathematics