I want to say either rectangular prisim or triangle pyrimad
Answer: 3
Step-by-step explanation:
You can answer this question by using the equation
(8+x)(7+x)=110
The x represents the width, as we do not know the area. If you simplify the equation, it becomes 56+15x+x2=110.
If you move all the terms to the left side, and rearrange it, it can become x^2+15x-54=0
This can be simplified into (x-3)(x+18)=0
This equation makes it so that x is either 3 or -18. It is not possible for a width to be -18, so the width must be 3.
Let
![c](https://tex.z-dn.net/?f=c)
be the amount of parts the student answered correctly. Suppose that
![s(c)](https://tex.z-dn.net/?f=s%28c%29)
is a function between
![c](https://tex.z-dn.net/?f=c)
and the score of a student's project. As the student initially receives a fixed
![50](https://tex.z-dn.net/?f=50)
points for turning the project in and
![5](https://tex.z-dn.net/?f=5)
points for each correct part, the function is initially:
![s(c) = 5c+50](https://tex.z-dn.net/?f=s%28c%29%20%3D%205c%2B50)
When the students receive
![7](https://tex.z-dn.net/?f=7)
points for each correct part, the coefficient of
![c](https://tex.z-dn.net/?f=c)
changes, as the amount of points received per correct answer increases. Thus:
![s(c) = 7c+50](https://tex.z-dn.net/?f=s%28c%29%20%3D%207c%2B50)
.
I DONT KNOW FHUEITHNGIFJTFRJNRGV
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