Hand sham. Your answer is the number below
7392.3
Answer:
Step-by-step explanation:
it is A
Answer:
Answer:
your answer is
m= -3
Math-way is a really good site for these kinds of problems i would recommend it if you need anymore help with stuff like this. :)
Step-by-step explanation:
0.5 times 0.3 = 0.15
0.4 times 0.3 = 0.12
0.6 times 0.3 = 0.18
0.8 times 0.2 = 0.16
Answer:
(or 6)
Step-by-step explanation:
<u>Set f(x)=0:</u>
![f(x)=\frac{x^2+x-42}{x^2+3x-28}](https://tex.z-dn.net/?f=f%28x%29%3D%5Cfrac%7Bx%5E2%2Bx-42%7D%7Bx%5E2%2B3x-28%7D)
![0=\frac{x^2+x-42}{x^2+3x-28}](https://tex.z-dn.net/?f=0%3D%5Cfrac%7Bx%5E2%2Bx-42%7D%7Bx%5E2%2B3x-28%7D)
![0=x^2+x-42](https://tex.z-dn.net/?f=0%3Dx%5E2%2Bx-42)
![0=(x+7)(x-6)](https://tex.z-dn.net/?f=0%3D%28x%2B7%29%28x-6%29)
or ![x=6](https://tex.z-dn.net/?f=x%3D6)
<u>Now check both solutions:</u>
![f(-7)=\frac{(-7)^2+(-7)-42}{(-7)^2+3(-7)-28}](https://tex.z-dn.net/?f=f%28-7%29%3D%5Cfrac%7B%28-7%29%5E2%2B%28-7%29-42%7D%7B%28-7%29%5E2%2B3%28-7%29-28%7D)
![f(-7)=\frac{49-7-42}{49-21-28}](https://tex.z-dn.net/?f=f%28-7%29%3D%5Cfrac%7B49-7-42%7D%7B49-21-28%7D)
![f(-7)=\frac{42-42}{28-28}](https://tex.z-dn.net/?f=f%28-7%29%3D%5Cfrac%7B42-42%7D%7B28-28%7D)
![f(-7)=\frac{0}{0}](https://tex.z-dn.net/?f=f%28-7%29%3D%5Cfrac%7B0%7D%7B0%7D)
Therefore,
because there is a hole at
. The denominator, in addition, can never be 0, so the function is undefined for
.
![f(6)=\frac{(6)^2+(6)-42}{(6)^2+3(6)-28}](https://tex.z-dn.net/?f=f%286%29%3D%5Cfrac%7B%286%29%5E2%2B%286%29-42%7D%7B%286%29%5E2%2B3%286%29-28%7D)
![f(6)=\frac{36+6-42}{36+18-28}](https://tex.z-dn.net/?f=f%286%29%3D%5Cfrac%7B36%2B6-42%7D%7B36%2B18-28%7D)
![f(6)=\frac{42-42}{54-28}](https://tex.z-dn.net/?f=f%286%29%3D%5Cfrac%7B42-42%7D%7B54-28%7D)
![f(6)=\frac{0}{24}](https://tex.z-dn.net/?f=f%286%29%3D%5Cfrac%7B0%7D%7B24%7D)
![f(6)=0](https://tex.z-dn.net/?f=f%286%29%3D0)
Since
, then
is the only zero of the function.