Answer:
B
Step-by-step explanation:
The equation of a circle in standard form is , where (h, k) is the center and r is the radius. The general form is simply the expanded form of the standard. Let's first write the standard form.
Here, the center is (3, -4) and the radius is r = 6, so:
Now expand:
x² - 6x + 9 + y² + 8y + 16 = 36
x² + y² - 6x + 8y - 11 = 0
The answer is B.
The answer is option C) 19,-19
<u>Step-by-step explanation</u>:
Given, z² = 361
To eliminate the square of z, take square root on both sides
z = √361
- The factor of 361 could not be an even number, since the last digit of 361 is odd. So, eliminate option A)
- The option B) is a larger number and it cannot be the answer. So, eliminate it.
- Try option C) works or not. (19)² = 1919 = 361 and (-19)² = -19-19 = 361.
- Therefore, z = √361 = ±19. option C) is the correct answer.
D.(2,10)
When X zero
Y=10
When y zero
X=2
Answer:
3 to the 10th power over 3 to the 3rd power
Step-by-step explanation:
Assuming none of the rooms and cats are shared,
5*5*5*5*4 = 2500