Answer:
10%
Step-by-step explanation:
divide 770 from 847 u get 1.1 , that 1 whole is the 770 and the .1 is the tax. .1 from 770 is 77 so 770+77=847
So you have to find the volume of the tank, and the volume of the pyramid. Then subtract the volume of the pyramid from that out of the tank. The formula for pyramid is v = lwh/3. For the tank (which is a cube in this case) It's any given side cubed.
40*30*30 = 3600/3=1200cm cubed
40^3 = 6400cm cubed
6400-1200=5200cm^3 of water
(If you don't get this answer then I may have made a calculation error as I did this quickly in my head, just check my answer and yours to see)
Answer:
huh?
Step-by-step explanation:
whats the questionnnnnnn
Answer:
Steps below, ask if you need further explanation.
Step-by-step explanation:
You've graphed the points, but it wants the lines and their equations.
Horizontal lines are of the form y=a, where a is the y value the line is at. Verticla lines are of the form x=b, where b is the x value the line is at. horizontal lines have a slope of 0 and vertical lines have an undefined slope, I will show you why.
Slope is found by (y2 - y1)/(x2 - x1) where (x1, y1) and (x2, y2) are the two points you are finding the slope between. A horizontal ine has no change in x s y2 - y1 = 0 so the fraction becomes 0/(x2-x1) = 0, so the slope is 0. No change in x makes the denominator 0, and dividing by 0 is undefined.
For the slanted line you will get a non zero or undefined slope, ets call it m. Then to find the line just plug into the formula y1 - y = m(x1 - x) where m is that slope and (x1, y1) is ONE of the poitns you are measuring the slope of. You just choose one, they will both get the same answer. Then just solve for y. Not y1, you want just y on one side of the equation.
Let me know if you need more explicit walking through.
