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Evgesh-ka [11]
3 years ago
10

Please help will mark brainliest!! 15 POINTS!!

Mathematics
2 answers:
kodGreya [7K]3 years ago
5 0

Answer:

decrease

Step-by-step explanation:

If 89 is the highest score, Ken would need a score of 90+ to increase the mean.

Md < 89\\Mi >89

Md = mean decreases

Mi = mean increases

Hope this helped!

Basile [38]3 years ago
4 0
Find the mean of the first four test scores first.
(Add all numbers in set and divide by how many numbers there are)
81 + 87 + 71 + 89 = 328 / 4 = 82

Then, find the mean with the 85 added as the fifth term.
81 + 87 + 71 + 89 + 85 = 413 / 5 = 82.6

The impact that the 85 had on the mean test score was that the mean/average increased by 0.6.
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Heyy pls help! worth 20 points, and please only help if you know the answer. also no links those r kinda annoying lol
iragen [17]

Step 1: Find the slope:

    m= \dfrac{y_2-y_1}{x_2-x_1}= \dfrac{-2-7}{4-(-2)} =  \dfrac{-9}{6}= -\dfrac{3}{2}

This gives you y=-\dfrac{3}{2}x+b, but we need to find b.

To find b, substitute in one (x,y) pair and it doesn't matter which one.  I'll go with (4,-2):

    \begin{aligned}-2&=-\dfrac{3}{2}(4)+b\\[0.5em]-2&=-6+b\\[0.5em]4&=b\end{aligned}

Now take that b-value and plug in into the slope-intercept form:

     y=-\dfrac{3}{2}x+4

It's always a good idea to toss in the other x-value from the other point, to make sure it checks out.

7 0
3 years ago
Determine if y = -7 is a solution for the inequality 2y ⥶ -14
Pie

Answer:

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6 0
3 years ago
What is the next term of the geometric sequence?<br> 2,6,18,
DedPeter [7]

Answer:

54

Step-by-step explanation:

keep multiplying by 3

4 0
4 years ago
What is the answer or solution 9s/2=45
Drupady [299]
S would be equal to 10. We’d multiply 45 by 2 to get the 90 then divide by 9 to isolate it
8 0
3 years ago
Read 2 more answers
I need help please????
katovenus [111]

Answer:

This is true.

Step-by-step explanation:

The fourth quadrant in the lower right-hand corner includes positive x values and negative y values.

6 0
3 years ago
Read 2 more answers
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