Answer: 4
Step-by-step explanation:
The formula for inverse proportion is x = k / y. Since x is inversely proportional to the square root of y. This will be:
x = k / ✓y
When x = 12, y = 9
We have to calculate the constant of proportionality, k which will be:
12 = k / ✓9
12 = k / 3
k = 12 × 3
k = 36
To find the value of x when y = 81 will be:
x = k / ✓y
x = 36 / ✓81
x = 36 / 9
x = 4
Therefore, x = 4 when y = 81.
Answer:
6 units
Step-by-step explanation:
Answer:
9x^2 -24x +13
Step-by-step explanation:
(g º f)(x) = g(f(x))
g(f(x)) = (3x-4)^2 - 3
(3x-4)^2 = 9x^2 - 24x + 16
g(f(x)) = 9x^2 - 24x + 16 - 3
g(f(x)) = 9x^2 -24x +13
787.50
You multiply 250 by .05 to get 12.50, then you add it to 250 to get 262.50, and multiply it by 3 to get 787.50
Answer:
y ≤
Step-by-step explanation:
We are to put the linear inequality;
7x - 4y ≥ 20
in slope intercept form.
We can rearrange the inequality as;
-4y ≥ - 7x + 20
Dividing throughout by -4 we get;
y ≤ 
- 5
Note that the inequality sign '≥' changes to '≤' since we divided all through with a negative number.
