A quadratic with roots at 8 and 5 is f(x) = x^2 +12x + 20
In order to find an equation given roots you can create statements that equal 0 in order to create parenthesis. For instance we know x = 8 at one point. So, we can solve that to equal 0.
x = -2 ----> add 2 to both sides
x + 2 = 0
We can do the same for the other zero.
x = -10 ----> add 10 to both sides
x + 10 = 0
Now that we have both of these, we can multiply these two things together. This will give us the function we need.
f(x) = (x + 2)(x + 10)
f(x) = x^2 + 10x + 2x + 20
f(x) = x^2 + 12x + 20
Answer:
D. (2, 1)
Step-by-step explanation:
slope = 1/2
y-intercept = 0
Equation: y = 1/2 x
Choice A:
x = 0
y = (1/2)(0) = 0
Choice A does not work.
Choice B:
x = 1/2
y = (1/2)(1/2) = 1/4
Choice B does not work.
Choice C:
x = 1
y = (1/2)(1) = 1/2
Choice C does not work.
Choice D:
x = 2
y = (1/2)(1) = 1
Choice D works.
Answer: D. (2, 1)
Answer:
<h2>you can fill 40 (150ml) glasses with 5 bottles of soft drinks</h2>
Basic fact:
<em>there are 1000 ml in a litre</em>
Step-by-step explanation:
let us do
5 x 1.2
= 6
now let's turn 6 litres in ml
6 x 1000
=6000
now we need to do
6000/150
instead of doing such big numbers, lets do
600/15
=40
Answer:
h=A-2πr2/2πr
Step-by-step explanation:
