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kogti [31]
3 years ago
14

In a normal standard curve, approximately ________% of scores fall within +/-2 standard deviations from the mean.

Mathematics
1 answer:
dybincka [34]3 years ago
5 0
95% of scores fall within +/-2 standard deviations from the mean

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How do I divide this?
Elenna [48]
26c^2 13c^3
---------- / ----------
5c^2 d^1 25d^3

26c^2. 25d^3
---------- • -------------
5c^2 d^1 13c^3

The top simplifies to 2 • 5 • d^2 = 10d^2, and the bottom is c • c = c^2

It would be 10d^2
------------
c^2.
6 0
4 years ago
samuel has read 3/6 of his assignment.judy has read 4/8 0f her assingment. their assignments were the same size.which sentence i
ladessa [460]

I'm taking you at your word.   I think these sentences are true
because you said them:

-- Samuel has read 3/6 of his assignment.

-- Judy has read 4/8 0f her assingment.

-- Their assignments were the same size.


8 0
3 years ago
Enrique can spend at most $2240 to renovate his home. One roll of wallpaper costs $32, and one can of paint costs $28. He needs
umka2103 [35]

The possible solution is having 30 rolls of wallpaper and 20 can of paints or 30 rolls of wallpaper with 46 can of paint.

<h3>Inequality</h3>

Inequality is the non equal comparison of two or more numbers and variables.

Let x represent the number of wallpapers and y represent the number of cans.

He needs at least 30 rolls of wallpaper and at least 20 cans of paint. Hence:

x ≥ 30   (1);

y ≥ 20    (2)

Also:

32x + 28y ≤ 2240    (3)

Plotting the 3 equations using geogebra online graphing tool, the possible solution is:

(30, 20), (30, 46)

The possible solution is having 30 rolls of wallpaper and 20 can of paints or 30 rolls of wallpaper with 46 can of paint.

Find out more on Inequality at: brainly.com/question/24372553

6 0
2 years ago
One number exceeds another by 5. The sum of the numbers is 89. What are the numbers ?
Leona [35]

Answer:

42

Step-by-step explanation:

89-5=84

84÷2=42

and reverse it to check

(42+5)+(42)=89

7 0
3 years ago
3. The temperature of a swimming pool
Anastaziya [24]

Answer:

81 F

Step-by-step explanation:

Hours | Temp.

   0     | 75F

   1      | 77F

   2     | 79F

   3     | 81F

4 0
3 years ago
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