Okay so the answer is the fist multiple choice
I hope this helps tou
Answer:
a: is false the base is an rectangle
b: is true because you multipluy the hight depth and length. that gives you 81
c: is correct because 9 times 4 is 36
d: is incorrect because you need to double all numbers for the volume to double
Step-by-step explanation:
Answer:
<h2>4.46</h2>
Step-by-step explanation:
The formula of a distance between two points:
![d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}](https://tex.z-dn.net/?f=d%3D%5Csqrt%7B%28x_2-x_1%29%5E2%2B%28y_2-y_1%29%5E2%7D)
We have (-3, 1) and (-1, 5). Substitute:
![d=\sqrt{(-1-(-3))^2+(5-1)^2}=\sqrt{2^2+4^2}=\sqrt{4+16}=\sqrt{20}\\\\=\sqrt{4\cdot5}=\sqrt4\cdot\sqrt5=2\sqrt5\approx2\cdot2.23=4.46](https://tex.z-dn.net/?f=d%3D%5Csqrt%7B%28-1-%28-3%29%29%5E2%2B%285-1%29%5E2%7D%3D%5Csqrt%7B2%5E2%2B4%5E2%7D%3D%5Csqrt%7B4%2B16%7D%3D%5Csqrt%7B20%7D%5C%5C%5C%5C%3D%5Csqrt%7B4%5Ccdot5%7D%3D%5Csqrt4%5Ccdot%5Csqrt5%3D2%5Csqrt5%5Capprox2%5Ccdot2.23%3D4.46)
Three possible answers are:
y = 2x-1
y = 5x-1
y = -3x-1
All of them have the same y intercept of -1. The slopes are the only thing that differ.
Any linear equation can be written in the form y = mx+b where
m = slope
b = y intercept