Answer:
A. ![x \geq 0](https://tex.z-dn.net/?f=%20x%20%5Cgeq%200)
Step-by-step explanation:
The domain of a function is the set of
-values.
You can use gauss's method
n(first number + last number)/2 where n is the number of integers in this case 21 ()
21(0.30 + 0.50)/2
21*0.8/2
21*0.4
8.4
Two column proofs are organized into statement and reason columns. Each statement must be justified in the reason column. Before beginning a two column proof, start by working backwards from the "prove" or "show" statement. The reason column will typically include "given", vocabulary definitions, conjectures, and theorems.
Markup=profit/cost*100%. $7,280/18,200*100%= 40% markup
Answer:
-7
Step-by-step explanation:
Here we want to find the point that divide the segment AB into ratio 3:4.
The coordinates of A are
A (-4, -10)
B (-11, -7)
We can use the formula
![x=\frac{a}{a+b}(x_2-x_1)+x_1](https://tex.z-dn.net/?f=x%3D%5Cfrac%7Ba%7D%7Ba%2Bb%7D%28x_2-x_1%29%2Bx_1)
In order to find the x-coordinate of the point that divides AB into a 3:4 ratio.
In this problem, we have:
a = 3
b = 4
where a/b = 3/4 is the ratio, and
![x_1=-4](https://tex.z-dn.net/?f=x_1%3D-4)
![x_2=-11](https://tex.z-dn.net/?f=x_2%3D-11)
Are the coordinates of the endpoints
Substituting into the formula, we find
![x=\frac{3}{3+4}(-11-(-4))+(-4)=\frac{3}{7}(-7)-4=-3-4=-7](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B3%7D%7B3%2B4%7D%28-11-%28-4%29%29%2B%28-4%29%3D%5Cfrac%7B3%7D%7B7%7D%28-7%29-4%3D-3-4%3D-7)