Answer: 2500
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Step-by-step explanation:
y is directly proportional to x^2.
This means that y = kx^2, where k is a real constant.
When x = 7, y = 245:
245 = k(7)^2 = 49k. By division, k = 5.
Now we know that y = 5x^2, when x = 9, y = 5(9)^2 = 5 * 81 = 405.
Check the picture below.
so what are the lengths of the 1st and 3rd side anyway? well x - 4 and 2x.
Answer:
x=55
Step-by-step explanation:
All the sides of a triangle add up to 180
100+25=125
180-125=55
X=55 Hope this helps