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3 years ago

NEED HELP ASAP! WILL CRY OR SOMETHING

Mathematics

1 answer:

Andrew [12]3 years ago

4 0

Part A: Group A is a cluster of points. Group B Is not even a group this point is an outlier. A possible reason Point B is involved is because there could be a student that although played a lot of video games, he studied too and got a good score.

Part B: The association is a negative linear association. Also as students play more video games the test scores tend to go down.

Hope This Helps!

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The scatter plot below displays the elevation and mean number of clear days per year of 14 U.S. cities. Two lines

Novay_Z [31]

Answer:

Step-by-step explanation:

Students use the least squares regression line to make predictions. ... Example 1 (2 minutes): Using a Line to Describe a Relationship ... the model given in the student lesson to predict a man's height using a shoe length of ... Below is a scatter plot of the data with two linear models, ... in Exercise 3 that represents this man

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3 years ago

What is the probability that a red or green marble will be selected from a bag containing 9 red marbles, 6 blue marbles, 7 green

lara31 [8.8K]

Answer: $\bold{\dfrac{16}{33} = 48\%}$

Step-by-step explanation:

Red or Green

$=\dfrac{red}{total}+\dfrac{green}{total}$

$=\dfrac{9}{33}+\dfrac{7}{33}$

$=\dfrac{16}{33}$

≈ 48%

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3 years ago

HELP A KID IN NEED

Stella [2.4K]

Answer:

8z+5

Step-by-step explanation:

Let's split the expression into two terms- z and... not z :)

3z+5z=8z

Why? it's just 3+5 with z tacked on the end

14-9=5

simple math :)

put it together to get

8z+5

all done!

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8 0

2 years ago

Use the distributive property to express 15+45

Nuetrik [128]

Answer:
15(1+3)

Explanation:
The distributive property can be generally expressed as follows:
ab + ac = a(b+c)

The given expression is:
15 + 45

We know that:
15 = 1*15
45 = 3*15

Therefore, the given expression can be written as:
1*15 + 3*15

Taking 15 as a common factor and applying the above rule, we will reach the following expression:
15(1+3)

Hope this helps :)

5 0

3 years ago

Factor this expression: ab + 4 + a + 4b

Makovka662 [10]

Grouping method works best on this one:

ab+a+4+4b=a(b+1)+4(b+1)
=(a+4)(b+1)

4 0

3 years ago