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skad [1K]
2 years ago
6

What is the answer to 2x squared?

Mathematics
1 answer:
anzhelika [568]2 years ago
6 0

Answer:

it’s just 2x^2

it’s not factorable

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Pls help here's the attachment
Ilya [14]

Answer:A

Step-by-step explanation:

7 × 3 = 21

10 × 3 = 30

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3 years ago
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Is 8/15 closest to 0,1/2"or 1
Bumek [7]
8/15 is closest to 1/2
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stacy's thermostat is set at 74°F.Which range of numbers contains the opposite of stacy's thermostat setting?
viva [34]
I don't have the ranges of numbers to see which range so clearly it's impossible to answer
8 0
3 years ago
6. Find OR.<br> 2<br> 3x + 22<br> 10x - 41
Sever21 [200]
3x+22=10x-41
-22 -22
----------------------
3x=10x-63
-10x -10x
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4 0
3 years ago
Here are the total scores of 10 students in an introductory statistics course.
cestrela7 [59]

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

Mean (m) = 72

Standard deviation (sd) = 10

Grading cutoff policy:

bottom 5% receive F

next 15% receive D

next 35% receive C

next 30% receive B

A) Give the cutoffs for the grades in this course in terms of standardized scores.

Standardized score for grade cutoff:

Locating the Zscore for the proportions on the z table :

Bottom 5% = 0.05 ; corresponding Zscore = - 1.645

next 15% receive D = (5 +15)% 0.20 ; corresponding Zscore = - 0.84

next 35% receive C = (20+35)% = 0.55 ; corresponding Zscore = 0.13

next 30% receive B = (55 + 30)% = 0.85 ; Corresponding Zscore = 1.04

B) Give the cutoffs in terms of actual total scores.

Recall:

Zscore = (x - m) /sd ; where x = actual score

x = sd*z + m

For F:

10*(-1.645) + 72 = 55.55

For D:

10*(-0.84) + 72 = 63.6

For C:

10*(0.13) + 72 = 73.3

For B:

10*(1.04) + 72 = 82.4

C) Do you think that this method of assigning grades is a good one?

Yes, it is good in terms of expressing scores around the mean such that score below are negative and those above are positive. However, it is a little bit ambiguous.

4 0
3 years ago
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