<span>ets say in this case x is the amount or rainfall in inches on a given day. We imagine that the ground around the lake absorbs some amount of rainfall. When rainfall is less than this the lake level does not go up. Lets say that rainfall level is 1 inch so we want the polynomial to equal zero for x = 1 and to increase after that.
The polynomial y (water level) = (x-1)(x+1) has a solution y = 0 at x = 1 and is an upward facing parabola so that as x increases so does y. negative values of rainfall have no meaning so we are interested only in the polynomial when x is GT zero.
x=0 y=-1 lake level drops one inch a day without rain
x=1 y=0 one inch of rain and water level stays constant
x=2 y = 3 two inches of rain and water level goes up 3 inches</span>
Answer:
y = 160 - x
Step-by-step explanation:
Given :
Maximum text character = 160
x = number of typed characters
y = Number of characters left or unused characters
Unused characters = 160 at the start of a fresh message page, which reduced as characters are being typed.
Hence,
Unused characters = (maximum characters - number of typed characters)
y = 160 - x
Assumption:
<em>The figure is not given in the question so in absence of figure it is difficult to tell exact answer. However in order to solve it we assume that Lenght of RED rectangle is (A+B) and width is (C+D).</em>
Answer:
The correct answer is A. (A+B)(C+D).
Step-by-step explanation:
The formula to calculate area of rectangle is = Lenght * Width
Area = L* W
(Putting values)
Area = (A+B)(C+D)
Ok, so since it doesn't give a value for "my age", we'll call it x. So the sentence translates into an equation...
200 reduced means... 200 -
by 2 times my age means... 2x
equals 16 means... = 16
200 - 2x = 16
Now let's solve for x to find "my age"
First subtract 200 from each side to begin to isolate x
-2x = -184
Divide each side by -2 to isolate x
x = -184/-2
x = 92
I'm 92 years old!
Answer: 39 pounds
Step-by-step explanation:
At first, the warehouse worker loads a cart with 14 boxes and the boxes have an average weight of 24 pounds. The total weight of the boxes will be:
= 14 × 24
= 336 pounds
Since the worker picks up a new box and puts it on the cart and the average weight of the boxes is 25 pounds. It means that the boxes are now 15 and their total weight will be:
= 15 × 25
= 375 pounds
The weight of the new box will be:
= 375 - 336
= 39 pounds