in the middle of the afternoon, the temperature outside was 0 °f. an hour later, the temperature had decreased by 12 °f. an hour after that, the temperature had decreased by another 4 °f. what increase in temperature is needed to return to the original temperature of 0 °f?

a
4 °f

b
8 °f

c
12 °f

d
16 °

D. 16 °F

Step-by-step explanation:

Given:

The initial temperature of the outside is 0 °F.

Decrease in the temperature in the first hour = 12 °F

Therefore, temperature after 1 hour = 0 - 12 = -12 °F

Now, decrease in the temperature in the second hour = 4 °F

Therefore, temperature after 2 hours = -12 - 4 = -16 °F

Let 'x' °F be added to the final temperature in order to bring it to 0 °F.

Therefore,

Adding 16 on both sides, we get:

Hence, we need to increase the temperature by 16 °F to attain the same initial temperature of 0 °F.

d

step-by-step explanation:

by observation, we can see that the the graph is simply the graph of y = |x| that has been shifted 4 units downwards and 3 units to the left.

we can recognize in choice d :

y = | x + 3 |   - 4 (rewriting in general form)

y = | x - (- 3) |   - 4

the "-4 " term means   that the graph has been shifted by 4 units in the negative y direction

the "-3 " term means   that the graph has been shifted by 3 units in the negative x direction

this matches our observation of the graph described above.

if you explain the the question more correctly i might be able to answer this better

step-by-step explanation: