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Luden [163]
3 years ago
8

Using the slope formula find the slope of a line that contains these two points: (1,-19), (-2,-7)

Mathematics
1 answer:
Reptile [31]3 years ago
3 0

Answer:

The slope of the line is -4

Step-by-step explanation:

Slope: (y2-y1) / (x2-x1)

(-7-(-19)) / (-2-1)

(12) / (-3)

= -4

You might be interested in
Sixty percent of the students at a certain school wear neither a ring nor a necklace. Twenty percent wear a ring and 30 percent
Reptile [31]

Answer:

0.4

Step-by-step explanation:

Given

60 % wear neither ring nor a necklace

20 % wear a ring

30 % wear necklace

This question can be Solved by using Venn diagram

If one person is choosen randomly  among the given student the probability that this student is wearing a ring or necklace is

P\left ( wear \ ring\ or \ necklace )+P\left ( neither\ ring\ or\ necklace)=1

P\left ( wear \ ring\ or\ necklace )=1-0.6=0.4

The sum of probabilty is equal to 1 because it completes the set

Therefore the required probabilty is 0.4

7 0
3 years ago
Please Help!
vaieri [72.5K]
41.5 times 8.4 is the equation your in high school so you should know the rest
6 0
3 years ago
Read 2 more answers
15 points. Need help with this math question
kodGreya [7K]

Answer:

0.0098 < 0.01935 < 0.02  < 0.14999 < 0.1589

8 0
2 years ago
Read 2 more answers
When the outliers are removed, how does the mean change? (2 points) dot plot with 1 on 50, 1 on 76, 1 on 78, 2 on 79, 1 on 80, 1
777dan777 [17]

Answer:

Answer: The mean increases by 3

Step-by-step explanation:

The original data set is 

{50, 76, 78, 79, 79, 80, 81, 82, 82, 83}

The outlier is 50 because it is not near the group of values from 76 to 83 which is where the main cluster is.

The original mean is M = (50+76+78+79+79+80+81+82+82+83)/10 = 77

If we take out the outlier 50, the new mean is N = (76+78+79+79+80+81+82+82+83)/9 = 80

So in summary so far

old mean = M = 77

new mean = N = 80

The difference in values is N-M = 80-77 = 3

So that's why the mean increases by 3

8 0
3 years ago
This question is like impossible idk
7nadin3 [17]
If the problem was written x + 4x.  We would know to add like the coefficients together and get 5x  same thing with the radicals.

\sqrt{3} + 4 \sqrt{3} = 5 \sqrt{3}
3 0
3 years ago
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