Answer:
1/2
Step-by-step explanation:
To solve A, complete the square for both variables.
The center is (6,4)
Answer:
-9
Step-by-step explanation:
2(-x)² - 5 = 157
2x² - 5 = 157
add 5 to each side of the equation:
2x² = 162
divide both sides by 2:
x² = 81
√81 = 9 or -9
Answer:
A
Step-by-step explanation:
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