Answer:
Step-by-step explanation:
<u>Given equation:</u>
- x² + y² + 8x - 4y - 7 = 0
<u>Convert this to standard form by completing the square:</u>
- (x - h)² + (y - k)² = r², where (h, k) - center, r - radius
- x² + 2*4x + 4² + y² - 2*2y + 2² - 16 - 4 - 7 = 0
- (x + 4)² + (y - 2)² - 27 = 0
- (x + 4)² + (y - 2)² = 27
- (x + 4)² + (y - 2)² = (√27)²
The center is (- 4, 2) and the radius is √27
Answer:
y= 12x
Step-by-step explanation:
36/3=12
12× x =y
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Unit Price for bread A is 0.06 cents per ounce
Unit Price for bread B is 0.05 cents per ounce (rounded to the nearest thousandths/ cent)
So it would be better to buy bread b
Answer:
D No, because the cards are not being replaced in the deck after they are turned over, the independence condition has not been met.
Step-by-step explanation: