Answer:
8 dollars per extra person
Step-by-step explanation:
subtract the original 40 dollars from 80 ,you get 40,the probloem tells you that there is 9 people meaning there was 5 extras ,so 40/5=8
Answer:
<u>Algebraically</u>
0.5x-7= √(-5x+29)
(0.5x-7)² = -5x+29
(0.5x)² - 2*0.5x*7 + 7² = -5x+29
0.25x² - 7x + 49 + 5x - 29 = 0
0.25x² - 2x + 20 = 0
Its discriminant is:
b² - 4*a*c
(-2)² - 4*0.25*20
-16 < 0
Therefore, the equation has no solutions.
<u>Graphically</u>
In the picture attached, the plots of the functions are shown. We can see that they don't intersect each other, and that is why there is no solution.
Answer:
CosC = ![\frac{3}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B5%7D)
Step-by-step explanation:
Cos C = ![\frac{Adjacent}{Hypotenuse}](https://tex.z-dn.net/?f=%5Cfrac%7BAdjacent%7D%7BHypotenuse%7D)
<em>Where Adjacent = 24 , Hyp = 40</em>
Cos C = ![\frac{24}{40}](https://tex.z-dn.net/?f=%5Cfrac%7B24%7D%7B40%7D)
<u><em>In simplest form</em></u>
CosC = ![\frac{3}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B5%7D)
Answer:
y=2/3x+2
Step-by-step explanation: