Answer: Grade 8
Step-by-step explanation: The bar graph indicates by color which the number of students who liked said food more. Grade 8's bar is higher than every other grade showing us that their grade 8 liked spaghetti the most.
Given:
The given quadratic equation is
![3(x+4)^{2} = 48](https://tex.z-dn.net/?f=3%28x%2B4%29%5E%7B2%7D%20%3D%2048)
or, ![(x+4)^{2} =16](https://tex.z-dn.net/?f=%28x%2B4%29%5E%7B2%7D%20%3D16)
And
The roots are given: ![x = -8 , x = 0](https://tex.z-dn.net/?f=x%20%3D%20-8%20%2C%20x%20%3D%200)
To find the missing step.
Let us solve the equation.
![3(x+4)^{2} = 48](https://tex.z-dn.net/?f=3%28x%2B4%29%5E%7B2%7D%20%3D%2048)
or, ![(x+4)^{2} = 16](https://tex.z-dn.net/?f=%28x%2B4%29%5E%7B2%7D%20%3D%2016)
or,
[ eliminating 16 from both the side]
or, ![x^{2} +8x = 0](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B8x%20%3D%200)
or, ![x(x+8) = 0](https://tex.z-dn.net/?f=x%28x%2B8%29%20%3D%200)
or, ![x = 0, x = -8](https://tex.z-dn.net/?f=x%20%3D%200%2C%20x%20%3D%20-8)
Hence,
The step 2 could be ![x^{2} +8x = 0](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B8x%20%3D%200)
Download photomath it’ll answer it 4 u
Answer:
50 tiles.
Step-by-step explanation:
The difference between the price of the two different tiles is 1.69-0.89=$0.80. Dividing the $40 that the tile saw costs by this difference, you get 50 tiles. PM me if you have more questions! Hope this helps.
Let
x-----> the time in minutes
y------> the number of gallons of water
we know that
the unit rates is equal to
![\frac{y}{x} = \frac{42}{10}=4.2\frac{gal}{min}](https://tex.z-dn.net/?f=%5Cfrac%7By%7D%7Bx%7D%20%3D%20%5Cfrac%7B42%7D%7B10%7D%3D4.2%5Cfrac%7Bgal%7D%7Bmin%7D)
the unit rate is equal to the slope of the linear equation
then
![y=4.2x](https://tex.z-dn.net/?f=y%3D4.2x)
<u>Problem</u>
1) How many gallons of water will Elyse use in three minutes in the shower?
For x=3 minutes
substitute in the equation above
![y=4.2x](https://tex.z-dn.net/?f=y%3D4.2x)
![y=4.2*3](https://tex.z-dn.net/?f=y%3D4.2%2A3)
![y=12.6 gal](https://tex.z-dn.net/?f=y%3D12.6%20gal)
<u>the answer is</u>
12.6 gal