Answer:
8
Step-by-step explanation:
Given the expression
4t^6-r^10 we are to factorize in the form;
(2t^x+r^y)(2t^x-r^y)
First we need to factorize (2t^x+r^y)(2t^x-r^y)
Compare 
Get y;
Hence the sum of x and y is 8
Answer:
Option B is correct friend
Answer:
k= 11/2
Step-by-step explanation:
To solve for the surface area of a sphere, the formula is 4*pi*r^2. Since we are using 3.14 instead of pi, the formula becomes 4*3.14*r^2. To solve, all we have to do is substitute in the radius for r and solve it like a normal question.
SA=4*3.14*r^2
SA=4*3.14*6^2
SA=452.16
Since we used 3.14 instead of pi, we have to say this is an approximate answer. This means the surface area of this sphere is 452.16 square inches.
The equation describes a circle of radius 2 centered at (x, y) = (7, -8). In standard form, the equation would be
.. (x -7)^2 +(y +8)^2 = 4
A graph of it can be seen here. https://www.desmos.com/calculator/14zlfrtoa1
