Answer:
(A)74
Explanation:
Let her average score on the last two tests = x.
The six scores will now be: 82,78,87,73, x and x.
Since the average score for her first six chemistry tests = 78

We then solve for x.

Her average score for the last two tests is 74.
Less for statement 1 and less for statement 2
Answer:
A)Triangle B is a reflection of Triangle A across the x-axis. Triangle C is not a reflection of Triangle A.
Step-by-step explanation:
I believe this is the correct answer because Tringle B does reflect Triangle A across the x-axis (----------) and ofcourse Triangle C is not a reflection of A
Answer:
c = 15: The height of candle is 15 inches when it is not lit.
m = -1.6: The height of candle decreases 1.6 inches for every hour it is lit.
Step-by-step explanation:
We are given the following in the question:
Height of candle = 15 inches

This function gives the length of the candle in inches left after it was burn for t hours.
Comparing the given equation to a linear equation, we have:

where m is the slope and c is the y-intercept.
Comparing we, get
m = -1.6 and c = 15
Interpretation:
c = 15 mean the y-intercept is 15 that is he value of function when t = 0, thus, the height of candle is 15 inches when it is not lit.
m = -1.6 is the rate of change of the function when t increases by 1 unit that is the height of candle decreases 1.6 inches for every hour it is lit.
Answer:
5√2
I think, that sign mean square root.. just letting you know.
Hope I helped!
<em>*simplyeliza*</em>