When x=0 y=50 when y=0 x=+\-5. -x^2 makes the parabola open downward y(x)=2x^2+50;y(3)=2*9+50=32
We can use ratios, in other words, if one part of the photo is changed x times, how many times does the other part change?
We can set up the proportion as :
width 1 : length 1 = width 2 : length 2
20 : 30 = 5 : x
We do inverse multiplication, or multiply the outer with outer and inner with inner (W1 * L2 and L1 * W2)
20*x = 30*5
20x = 150
Divide all by 10
2x = 15
Divide all by 2 to isolate x
x = 15/2
x = 7.5cm
Answer:
The answer is 28.26 square in
Step-by-step explanation:
As, the diameter if the top = 6 inches
And the area of a circle = 3.14(pi) x radius^2
So here radius = Diameter /2 = 6/2 = 3
So radius = 3 inches
So area = 3.14 x (3)^2
= 3.14 x 9
= 28.26 square in
Angle WXY is 100 degrees. You add angle WXZ and angle ZYX and you get 100. 60+40=100
