The correct answer would be the first one, 3x^2 + 2x
I can explain if you need it
Answer:
Parralel lines have the exact same slope.
in the equation y=mx+b m is the slope
Both of these equations are in slope intercept form (y=mx+b) meaning that the coefficient in both equations is the slope.
Parralel lines have the same slope and perpendicular lines have the inverse opposite slope. For example if a line had a slope of 2 or 2/1 then the perpendicular line to it would have a slope of -1/2.
With that knowledge we can easily see that the lines are perpendicular since their slopes (represented by the coefficient) are the inverse opposite.
Perpendicular is your answer
Step-by-step explanation:
62.5 mg sample will remain after 240 days
Step-by-step explanation:
Given
Half-life = T = 60 days
The formula for calculating the quantity after n half lives is given by:
![N = N_0(\frac{1}{2})^n](https://tex.z-dn.net/?f=N%20%3D%20N_0%28%5Cfrac%7B1%7D%7B2%7D%29%5En)
Here
N is the final amount
N_0 is the initial amount
n is the number of half lives passed
The number of half lives are calculated by dividing the time for which the remaining quantity has to be found by half life
The quantity has to be calculated for 240 days so,
![n = \frac{240}{60}\\n = 4](https://tex.z-dn.net/?f=n%20%3D%20%5Cfrac%7B240%7D%7B60%7D%5C%5Cn%20%3D%204)
Given
![N_0 = 1000\ mg](https://tex.z-dn.net/?f=N_0%20%3D%201000%5C%20mg)
Putting the values in the formula
![N = 1000 (\frac{1}{2})^4\\=1000 * \frac{1}{16}\\=\frac{1000}{16}\\=62.5\ mg](https://tex.z-dn.net/?f=N%20%3D%201000%20%28%5Cfrac%7B1%7D%7B2%7D%29%5E4%5C%5C%3D1000%20%2A%20%5Cfrac%7B1%7D%7B16%7D%5C%5C%3D%5Cfrac%7B1000%7D%7B16%7D%5C%5C%3D62.5%5C%20mg)
Hence,
62.5 mg sample will remain after 240 days
Keywords: Half-life, sample
Learn more about half-life at:
#LearnwithBrainly
Answer: 10.0 lb/wk
Step-by-step explanation:
1. Calculate the number of days
1 week = 7 days
2. Convert days to hours
24 h = 1 days
No. of hours= 7 days* 24h/1 day= 168h
3. Convert hours to ounces
1h = 0.952 oz
No. of ounces= 168h* 0.952 oz/ 1h=159.9 oz
4. Convert ounces to pounds
1 lb = 16 oz
No. of hours= 7 days* 24h/1 day= 168h
Therefore the biggest loser lost 10.0 lb per week.
Please may I have brainliest?
stay safe!!!!!!!!
Answer:
Subscribe to Trickshot Cinemas on YT first. Then I'll answer the question
It's the channel with the profile pic is TC in flames