Answer:
y = 112
Step-by-step explanation:
If y varies directly as the square of x
mathematically;
y ∝ x²
y = kx² where 'k' is the constant of proportionality
let u know the value of k for this equation by making k the subject of the formular from y = kx²
divide both sides by x²
k = y / x²
given that y = 567 x = 9
k = 567/(9)²
k = 567/81
k = 7
now to get the value of y when x = 4
from the equation conneting x, y,
y = kx²
y = 7 × (4)²
y = 7 × 16
y = 112
Answer:
1.) $640 2.) 7 years.
Step-by-step explanation:
1000 x .2 = 200 1 yr
1000 - 200 = 800
800 x .2 = 160 2 yrs
800 - 160 = 640
640 x .2 = 128 3 yrs
640 - 128 = 512
ANYWAYS THIS WOULD TAKE TO LONG! SO HERE IS THE ANSWER TO B.
Given:
Consider the expression is
To find:
The value of given expression using a suitable identity.
Solution:
We have,
Using the identity 
, we get
Therefore, the value of the given expression is .
Answer:
The answer is A which is X^3 3 root y
