Answer for brainliest Express the quantity of water flowing into a tank as a linear function of time. Then identify the quantity of water in the tank after 50 minutes.

y=1.8x+219; 309

Step-by-step explanation:

I backsolved this problem. This means that I plugged in the x value into each of the given equations to see if the returned y value matched the table. I then repeated this with the next set to make sure it was a trend and not a one time match.

Since the equation y=1.8x+219 matched I then substituted the x value 50 into the equation to get y=309

something that characterises a right triangle is the fact that we may use pythagoras' theorem to find any one of its sides given that we have the length of the other two sides. here, we have the length of the hypotenuse, √(87) yd, and one other side, √(23) yd, thus we can easily find the length of the remaining side using pythagoras' theorem as defined below:

c^2 = a^2 + b^2, where c is the length of the hypotenuse, and a and b are the lengths of the other two sides.

thus, given that c = √(87) and a = √(23), we may substitute these into the formula we defined above to get:

c^2 = a^2 + b^2

(√87)^2 = (√23)^2 + b^2 (substitute c = √87 and a = √23 into the equation)

87 = 23 + b^2 (evaluate (√87)^2 = 87 and (√23)^2 = 23 - remember that the square root of a number, squared will equal that very same number)

64 = b^2 (subtract 23 from both sides)

√64 = b (take the square root of both sides)

8 = b (evaluate √64 = 8)

therefor, the length of the unknown leg in the right triangle is 8 yd (first answer).

the solution is 12x-6y