Sandwiches are $5.25 Bowls are $3.50
4x+5y=38.50
3x+9y=47.25
Answer:
x (is greater than or equal to) 4
Step-by-step explanation:
i hope this helps :)
I think its 24 because 6*2 equals 12 but you cant multiply 8 by anything to get 12
with 24 6*4 equals 24 and 8*3 equals 24
Answer:
A. f(x) = (4x+5)(x-3)
B. Since +4 > 0, the graph opens up
as always, the vertex is at x = -b/2a = 7/8
C. plot the vertex at (7/8, -18 1/16)
pick a point or two, say at x=0,1,2 and plot them. then draw a curve through them.
Step-by-step explanation:
f(x) = 4x^2 − 7x − 15
Part A: What are the x-intercepts of the graph of f(x)? Show your work.
Part B: Is the vertex of the graph of f(x) going to be a maximum or minimum? What are the coordinates of the vertex? Justify your answers and show your work.
Part C: What are the steps you would use to graph f(x)? Justify that you can use the answers obtained in Part A and Part B to draw the graph.
Answer:
![\huge\boxed{8(2h\ 40min)=21h\ 20min}](https://tex.z-dn.net/?f=%5Chuge%5Cboxed%7B8%282h%5C%2040min%29%3D21h%5C%2020min%7D)
Step-by-step explanation:
![1h=60min\\\\2h=2(60min)=120min\\\\2h\ 40min=2h+40min=120min+40min=160min\\\\8(2h\ 40min)=8(160min)=1280min\\\\1280:60=\dfrac{1280}{60}=\dfrac{1260}{60}+\dfrac{20}{60}=21+\dfrac{20}{60}\\\\1280min=21h\ 20min](https://tex.z-dn.net/?f=1h%3D60min%5C%5C%5C%5C2h%3D2%2860min%29%3D120min%5C%5C%5C%5C2h%5C%2040min%3D2h%2B40min%3D120min%2B40min%3D160min%5C%5C%5C%5C8%282h%5C%2040min%29%3D8%28160min%29%3D1280min%5C%5C%5C%5C1280%3A60%3D%5Cdfrac%7B1280%7D%7B60%7D%3D%5Cdfrac%7B1260%7D%7B60%7D%2B%5Cdfrac%7B20%7D%7B60%7D%3D21%2B%5Cdfrac%7B20%7D%7B60%7D%5C%5C%5C%5C1280min%3D21h%5C%2020min)
![\text{Other method}\\\\8\cdot2h=16h\\8\cdot40min=320min=300min+20min=5h+20min\\\\16h+(5h\ 20min)=21h\ 20min](https://tex.z-dn.net/?f=%5Ctext%7BOther%20method%7D%5C%5C%5C%5C8%5Ccdot2h%3D16h%5C%5C8%5Ccdot40min%3D320min%3D300min%2B20min%3D5h%2B20min%5C%5C%5C%5C16h%2B%285h%5C%2020min%29%3D21h%5C%2020min)