X=50
all four of a squares angles are 90°
90•3=270
270-20=250
250/5=50
x=50
49x^2 - 9 = 0
As there is no x term, we can pretty much guess we have a situation where we factlrise by something known aa difference of two squares, so to factorise it:
49 = 7^2
9 = 3^2
x^2 = (x)^2
so...
(7x - 3)(7x + 3) = 0
7x - 3 = 0 7x + 3 = 0
x = 3/7 x = -3/7
Let, the age of Kim = x
Then, Jordan's age = x + 7
It is given that, 4(x + 7) = 200
a) Equation would be: 4x + 28 = 200
b) Now, 4x = 200 - 28
x = 172/4
x = 43
So, Kim is 43 Years old.
c) Age of Jordan = x + 7
= 43 + 7 = 50
In short, Age of Jordan is 50 Years
Hope this helps!
Answer: B. Exponential. There is a constant rate of decay or decrease.
The y-values decrease by 1/4 of the number that comes before every time.
