The answer is 93,000,000.
Let's denote Cindy's age which is unknown with X
We know that Cindy's age is 3 times her age 6 years ago.
6 years ago Cindy's age was the present age (X) - 6 : X-6
The fact that the present age is 3 times her age 6 year ago can be written as:
3*(X-6)
So, finally:
X=3*(X-6)
Answer:
(B) 1
Step-by-step explanation:
The number of such integers will be the number of places where the functions f(x) = x² and g(x) = √x intersect.
<h3>Graphical solution</h3>
The attachment shows the graphical solution to f(x) = g(x) for x > 0. There is exactly one point of intersection at x=1.
There is one such number.
A. The student improperly set up the equation to find the y-intercept
This is because he put y as -2 and x as 1, but the coordinate is (1,-2) not (-2,1)
Hope this helps!
A) x + y = 24
B) x^2 + y^2 = 306
A) x = 24 -y
Then substituting this into B)
(24 - y)^2 +y^2 = 306
576 -48y +y^2 + y^2 = 306
2 y^2 -48y + 270 = 0
x1 = 15
x2 = 9