25% of x calories is 550 calories.
25% * x = 550
0.25x = 550
Divide both sides by 0.25
x = 2200
Answer: 2200 calories
The correct answer here would be D. -1(3x+1)(x+5). You can find this answer by redistributing the problem.
-1(3x+1)(x+5)
-1(3x²+15x+1x+5)
-1(3x²+16x+5)
-3x²-16x-5
Using the math above, we can see that when we redistribute we get the original equation. That makes Choice D correct.
Let's say the point is (x,y) and it lies in 1st quadrant with both x and y as positive ,
Now let's say that the point is rotated by 270 degrees counter clockwise
It means The point will shift to the 4th quadrant , and we know that in 4th quadrant , the x is positive and y is negative ,
Also , as it is rotated by 270 degrees , the x and y values will interchange
SO there are two steps
1) Change the sign of x
2) Interchange the x and y values , i.e swap , x with y and y with x
