Answer:
2x2x2x5x5
Step-by-step explanation:
Answer is picture below. Sorry, they are not in order while being worked at but, they ate in order in the function.
Answer:
it would be C
Step-by-step explanation:
5(10%)+25%
Answer:
(x - 2)^2 + (y + 5)^2 = 5
Step-by-step explanation:
If the center is at (h, k) : (2, -5), then the general form of the equation of this circle is
(x - 2)^2 + (y + 5)^2 = r^2, and we must find r^2.
We know that (3, -3) is a point on the circle. Substitute 3 for x and -3 for y in the above equation to find r^2:
(3 - 2)^2 + (-3 + 5)^2 = r^2, or
1^2 + 2^2 = r^2
Then r^2 = 5, and the desired equation is
(x - 2)^2 + (y + 5)^2 = 5 or (√5)^2
x+y=4
-x+y=2
We solved this equations system by reduction method:
x+y=4
-x+y=2
-----------------
2y=6 ⇒y=6/2=3
x+y=4
-(-x+y=2)
---------------
2x=2 ⇒x=2/2=1
answer: x=1; y=3
substitution method
x+y=4
-x+y=2
x=4-y
-(4-y)+y=2
-4+2y=2
2y=2+4
2y=6
y=6/2=3; then x=4-y=4-3=1
answer: x=1; y =3
equalization method
x+y=4 ⇒y=4-x
-x+y=2 ⇒y=2+x
Therefore:
4-x=2+x
-x-x=2-4
-2x=-2
x=-2/-2=1; then; y=4-x=4-1=3
Answer: x=1; y=3.