Answer:
y=-(2±√21)
Step-by-step explanation:
As far a domain, you only care about the denominator and radicals.
f(x) = 2 - √x is the denominator, so it can't be 0.
Also x is under a radical, so x can't be negative.
Set the denominator equal to 0 to find the excluded values.
2 - √x = 0
-√x = -2
√x = 2
x = 4, so 4 is an excluded value
The domain is all real numbers greater than or equal to 0, except 4.
[0, 4) U (4, ∞)
0 ≤ x < 4 U x > 4
Answer:
25 inches^2
Step-by-step explanation:
The formula for the area of a triangle is A = (1/2)(base)(height).
Here the base, b, is 10 inches and the height, h, is 5 inches.
Thus, the area of this triangle is
A = (1/2)(base)(height) = (1/2)(10 inches)(5 inches) = 25 inches^2
Answer:
y = 3x + 13
Step-by-step explanation:
Here, we want to solve for y
To solve for y, we simply are going to make y the subject of the formula
We have this as;
y - 3x = 13
y = 13 + 3x
