Answer:
90 lb/1 x 0.45 = 40.5
Step-by-step explanation:
To convert pounds to kilograms you would have to multiply the pounds by 0.45. So you have to multiply 90 by 0.45.
Answer:
<h2>x + 2y = 8</h2>
Step-by-step explanation:
The standard form of an equation of a line:
![Ax+By=C](https://tex.z-dn.net/?f=Ax%2BBy%3DC)
We have:
![y=-\dfrac{1}{2}x+4](https://tex.z-dn.net/?f=y%3D-%5Cdfrac%7B1%7D%7B2%7Dx%2B4)
Convert:
<em>multiply both sides by 2</em>
<em>add x to both sides</em>
![x+2y=8](https://tex.z-dn.net/?f=x%2B2y%3D8)
I’ll do it, math or reading?
Answer:
l = gt²/(2π)²
Step-by-step explanation:
if T = 2π√l/g
squaring both sides
(T)² = (2π)² × (√l/g)²
T² =4π² × l/g
T² = 4π²l/g
using cross multiplication techniqes
gT² = 4π²l
divede both sides by " 4π²"
gT²/4π² =4π²l/4π²
gT²/4π² =l
l = gT²/(2π)²
that is the final answer.
Answer:
5.29 units
Step-by-step explanation:
By Pythagoras theorem:
![{6}^{2} + {x}^{2} = {8}^{2} \\ 36 + {x}^{2} = 64 \\ {x}^{2} = 64 - 36 \\ {x}^{2} = 28 \\ x = \sqrt{28} \\ x = 5.29150262 \: units \\ x \approx 5.29 \: units](https://tex.z-dn.net/?f=%20%7B6%7D%5E%7B2%7D%20%20%2B%20%20%7Bx%7D%5E%7B2%7D%20%20%3D%20%20%7B8%7D%5E%7B2%7D%20%20%5C%5C%2036%20%2B%20%20%7Bx%7D%5E%7B2%7D%20%20%3D%2064%20%5C%5C%20%20%7Bx%7D%5E%7B2%7D%20%20%3D%2064%20-%2036%20%5C%5C%20%20%7Bx%7D%5E%7B2%7D%20%20%3D%2028%20%5C%5C%20x%20%20%3D%20%5Csqrt%7B28%7D%20%20%5C%5C%20x%20%3D%205.29150262%20%5C%3A%20units%20%5C%5C%20x%20%5Capprox%205.29%20%5C%3A%20units)