21
Turn 75%into a decimal 0.75 than multiply that by 28
Try this solution:
1. the standart form of the circle is: (x-x₀)²+(y-y₀)²=r², where point (x₀;y₀) - the cetre of the given circle, r - radius of the given circle.
2. Using r=7 and coordinates of the centre (0;0) it is possible to make up the required equation:
(x-0)²+(y-0)²=7²;
x²+y²=49.
Answer:
kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
Step-by-step explanation:
The function
... f(x) = (x+2)/(x-1) = 1 + 3/(x-1)
is symmetrical about the line y=x, hence is its own inverse.
We can evaluate the desired derivative directly.
... f'(x) -3/(x-1)²
so f'(2) is
... f'(2) = -3/(2-1)²
Answer:
The correct answer is A) -3
Step-by-step explanation:
To solve this system of equations, take what y is equal to in the first equation and input it for y in the second equation.
7x + 4y = -1
7x + 4(-x + 2) = -1
Now solve for x.
7x + 4(-x + 2) = -1
7x -4x + 8 = -1
3x + 8 = -1
3x = -9
x = -3
