Answer:
I believe it's "D" 13.1
Step-by-step explanation:
The answer is D
i plugged in all the equations and the equation for D is the one that works
Volume = 105in³
Mass = 871.5g
To find the volume of the metal we can find the area of a base, and multiply it by the prism's width.
The base is 30cm in area, and the width is 3.5cm, which makes the volume 105in³
The mass of the doorstop can be found by just multiplying the grams per cubic centimeter by the volume, which would be 871.5g
Answer:
<em>f(10)=290</em>
Step-by-step explanation:
<u>Function Evaluation</u>
Given a function f(x) as an explicit expression, finding f(x=a) implies substituting the value of x by a in every instance it occurs.
We are given the function:
![f(x)=3x^2-x](https://tex.z-dn.net/?f=f%28x%29%3D3x%5E2-x)
It's required to find f(10). We replace the x for 10:
![f(10)=3*10^2-10](https://tex.z-dn.net/?f=f%2810%29%3D3%2A10%5E2-10)
Operating:
![f(10)=3*100-10](https://tex.z-dn.net/?f=f%2810%29%3D3%2A100-10)
![f(10)=300-10](https://tex.z-dn.net/?f=f%2810%29%3D300-10)
![f(10)=290](https://tex.z-dn.net/?f=f%2810%29%3D290)
Thus, f(10)=290
Blue: y = 1/2x - 2
Orange: y = -2x - 4
Answer:
B) x - 2y = 4 and 2x + y = -4