Answer:
d= 2√10
Step-by-step explanation:
y= 3x - 5
3x - y - 5=0
d= | 3* 7 +(-1) * (-4) + (+5) |
________________

d = | 20 | / 
d = 20 / 
d = 2
Answer:
50 envelopes for 2.49
Step-by-step explanation:
2.49/50= .05
5.50/90= .06
the first per is less than the 90 envelopes one therefore the answer is 50 for 2.49
Answer:
X + 3
Step-by-step explanation:
There is no definite working. The first container is what I call the base because everything is a little above the first container, X. They are basically asking you what is the total of the four jars bigger than X. In other words how many steps more to climb before the top floor while you are on the first step. So then you add the other numbers like 0.5 etc which will give you X +3. Hope it helps.
Answer:
The error is founded in the slope, specifically in the run.
When seen a negative slope, that only applies to the rise but <u>not</u> the run.
Instead, the student should run 1(not 2) units to the <u>right</u>.
The slope had not mentioned any 2 in the run.
So it would sound like down 3, over 1, starting from 2.