9514 1404 393
Answer:
the correct answer is marked
Step-by-step explanation:
The circle with center (h, k) and radius r has equation ...
(x -h)² +(y-k)² = r²
For the given center, that is ...
(x -1)² +(y +1)² = r²
The value of r² can be found by using the given point for x and y, and seeing what value of r² makes the equation true.
(5 -1)² +(7 +1)² = 4² +8² = 16 +64 = 80
So, r² = 80 makes the equation true, and that equation is ...
(x -1)² +(y +1)² = 80
The first problem
x(x+3)=28
x^2+3x=28
x=4
The second problem
x(x-4)=32
x^2-4x-32=0
x=8
The equation of given line is ~
Let's use the point slope form of line to find the equation of given line ~
that is ~
Answer:
Answer: g = r - 7 * 4.
Step-by-step explanation:
that's the answer
Answer:
32.3 feet.
Step-by-step explanation:
I attached a picture to show u the work!! sorry I spelled pythagorean theorem
