Inverse variation means y=k/x (direct variation is y=kx)
You are given a point, so you can solve for the constant k...
2=k/15
k=30 so the function is:
y=30/x
Answer:
It's 2 1/4
Step-by-step explanation:
I dont know how to explain this... but I'm 100% positive on the answer so
<span>For part a,
y < x
y > -2x
</span><span>Point B: (3,1) plugin x=3, y=1 y < x 1 < 3
</span>which is true, so point B satisfies the first inequality<span>You can graph the inequality y > 2x+5 and see which schools are in the shaded region
I'm sorry but I can't do B and C
But I hope this helps!</span>
Answer:
I am so sorry I did not mean to answer this question, can anyone help me answer it?
Step-by-step explanation:
The shaded region's area is x² + 23x + 49.
Step-by-step explanation:
Step 1; To calculate the area of the shaded region, we subtract the area of the square which has side lengths of (x + 1) from the entire rectangle. So we determine the equations that denote the areas of the two shapes.
Step 2; Area of the square = side length × side length (x + 1)×(x + 1) = x² + x + x + 1 = x² + 2x + 1
Area of the bigger rectangle = length × breadth = (x + 10) × (2x + 5) = 2x² + 5x + 20x + 50 = 2x² + 25x + 50.
Step 3; The given shaded region's area = Area of the bigger rectangle - Area of the smaller square = 2x² - x² + 25x - 2x + 50 - 1 = x² + 23x + 49.
So the shaded region's area of x² + 23x + 49.
