Answer:
<h2>y = 2x - 1</h2>
Step-by-step explanation:
![y=mx+b](https://tex.z-dn.net/?f=y%3Dmx%2Bb)
It's an equation of a line in the slope-intercept form.
<em>m</em><em> - slope</em>
<em>b</em><em> - y-intercept → (0, b)</em>
<em />
Choose any two ordered pairs (x, y) from the given table.
(0, -1) → <em>b = -1</em>, (2, 3).
Calculate the slope.
Use the formula:
![m=\dfrac{y_2-y_1}{x_2-x_1}](https://tex.z-dn.net/?f=m%3D%5Cdfrac%7By_2-y_1%7D%7Bx_2-x_1%7D)
Substitute the coordinates of the points:
![m=\dfrac{3-(-1)}{2-0}=\dfrac{4}{2}=2](https://tex.z-dn.net/?f=m%3D%5Cdfrac%7B3-%28-1%29%7D%7B2-0%7D%3D%5Cdfrac%7B4%7D%7B2%7D%3D2)
Finally:
![y=2x-1](https://tex.z-dn.net/?f=y%3D2x-1)
Answer:
400 cm squared
Step-by-step explanation:
Area of Square = length*length.
A=20*20
A=400 cm squared
Hi there,
5n - 9 + 4n + 5
5n - 4n = 5 + 9
Hence, N = 14
Hope this helps :)
Answer:
A. The red cylinder
Step-by-step explanation:
<h2><u>Which cylinder has the greater volume </u></h2><h3><u>volume of a cylinder</u></h3>
formula:
V = ![\pi r^{2} h](https://tex.z-dn.net/?f=%5Cpi%20r%5E%7B2%7D%20h)
<h3><u>volume of the blue cylinder</u></h3>
V = ![\pi r^{2} h](https://tex.z-dn.net/?f=%5Cpi%20r%5E%7B2%7D%20h)
= ![\pi * 1^{2} * 6](https://tex.z-dn.net/?f=%5Cpi%20%2A%201%5E%7B2%7D%20%2A%206)
=18.84956
to 2 dp
volume of the blue cylinder is <u>18.85 </u>
<h3><u>volume of the red cylinder</u></h3>
V = ![\pi r^{2} h](https://tex.z-dn.net/?f=%5Cpi%20r%5E%7B2%7D%20h)
= ![\pi * 2^{2} * 3](https://tex.z-dn.net/?f=%5Cpi%20%2A%202%5E%7B2%7D%20%2A%203)
= 37.69911
to 2dp
volume of the red cylinder is 37.70
<h3><u>the cylinder which has the greater volume is : A. The red cylinder</u></h3>
Answer:
1120
Step-by-step explanation:
-4×-5=20.
20×-7=-140
-140×-8=1120