Mpl
this graph shows the water level in a bathtub, in inches, over time (in minutes).

what situation could match the graph?

a. alison empties the water from the tub and then fills it halfway up again. she allows the water to sit for a couple of minutes and then checks to see if it is at the right temperature. it is a little hot, so she adds some more cold water to the tub. she takes a short bath and then allows half of the water to drain from the tub.

b. alison turns on the water and allows it to run in the tub for a few minutes. then she decides the water is too hot and allows some of the water to drain out of the tub before filling it up the rest of the way. after the tub is full, alison takes a short bath. after the bath, alison allows the water to completely drain from the tub.

c. alison turns on the water and allows it to run in the tub for a few minutes. she then turns the water off while she runs to answer the front door. alison comes back and allows water to run into the tub for a couple more minutes before she takes a short bath. after the bath, alison allows the water to completely drain from the tub.

d. alison turns on the water and allows it to fill the tub. she then takes a short bath. after her bath, she allows the water to drain from the tub. after a couple of minutes, the drain gets stopped up with a washcloth and the water does not drain for a couple of minutes. alison removes the washcloth and the rest of the water drains from the tub.

Note that in The Water Level vs Time graph, a constant level is represented by a line with slope=0 (for example, segment 2), when the level increases (when the water is running in the tub) the slope is positive (for example, segment 1) and when the level decreases (when Alison turns the water off) the slope is negative (for example, segment 5).

Now, if we want to prove this, let’s read again the statement in option C, dividing each section (see figure attached):

1. Alison turns on the water and allows it to run in the tub for a few minutes  (as the water runs in the tube, the water level increases)

2. She then turns the water off while she runs to answer the front door. (when this happens the water level is constant)

3. Alison comes back and allows water to run into the tub for a couple more minutes (again the water level increases)

4. She takes a short bath  (the water level is constant because she turned the water off)

5. Alison allows the water to completely drain from the tub  (When this happens, the water level decreases)

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation:

part d

step-by-step explanation:

theresa talked her parents into getting sd cards for her phone and her brother’s phone. inserting an sd card into a phone gives it more storage. they both get 8-gigabyte sd cards. how many bits of storage come with each sd card? type your answer in both scientific and standard notation.