Answer:
13
Step-by-step explanation:
x/y = 4
x=4y
x - y = 39
4y - y = 39
3y = 39
y= 13
Answer:
y = (x - 4)² - 25
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
To obtain this form use the method of completing the square.
Given
y = (x + 1)(x - 9) ← expand factors using FOIL, thus
y = x² - 8x - 9
To complete the square
add/subtract ( half the coefficient of the x- term )² to x² - 8x
y = x² + 2(- 4)x + 16 - 16 - 9
= (x - 4)² - 25 ← in vertex form
Answer:
incompleted question
Step-by-step explanation:
......?
First we need to find it’s length/width which we can do by dividing 216 by the amount of faces it has and then divide that result by 2
216/6=36
36/2=18
And volume is pretty much just 3 times that answer
3(18)=54
The volume is 54 cm^3
Answer: 300,408
If you add 300000+400+8 yout get 300408