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MakcuM [25]
3 years ago
12

Type the missing numbers in this sequence: 31, , , 58, 67, 76

Mathematics
1 answer:
mezya [45]3 years ago
3 0
31,40,49,58,67,76......
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A group of researchers investigated the effects of bed room lighting conditions in developing eye sight problems and found that
iogann1982 [59]

Answer:

Step-by-step explanation:

From the given information:

We are to find the following:

1)

Directional hypothesis: The directional hypothesis is the groups with different bedroom lightning conditions having a different proportion of eyesight proportions.

2)

The non directional hypothesis is each group having the same proportion of eyesight problems regardless and independent of the condition of the bedroom lightning.

3)

Control group: Children that slept in darkness

4)

Experimental groups: Children that slept in night light and those that slept with lamp.

5)

Independent variable: Light condition of the bedroom

Dependent variable: Eye sight problem.

3 0
2 years ago
Evaluate 23x-1 for x = 1.
Fed [463]
Using the order of operations (PEMDAS)...

23 · 1 - 1 = ?
23 - 1 = ?
22

The answer is 22

Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)
7 0
3 years ago
Mily wrote the equation −3x=−2x−6
Dima020 [189]

Answer:

x=6

Step-by-step explanation:

-3x=-2x-6

-3x+2x=-6

-x=-6

x=6

4 0
2 years ago
Read 2 more answers
Undecillion how many 0s.
Irina-Kira [14]

Answer:

<u>Undecillion</u> has 36 0's

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8 0
2 years ago
The rectangle below has an area of x² – 6x – 7 square meters and a width of 3 – 7 meters.
natta225 [31]

Answer:

The expression which represent the length of the rectangle is x + 1

Step-by-step explanation:

Given as :

The Area of rectangle = x² - 6 x - 7  square meters

The width of the rectangle = w = x - 7 meters

Let The length of rectangle = L meters

Now, <u>According to question</u>

∵ Area of Rectangle = Length × width

or, x² - 6 x - 7  meters² = L meters × w meters

or, x² - 6 x - 7 = L × (x - 7)

or, x² - 7 x + x - 7 = L × (x - 7)

or, x (x - 7) + 1 (x - 7) = L × (x - 7)

or, (x - 7) (x + 1) = L × (x - 7)

∴ L = \frac{(x - 7)\times (x + 1)}{(x - 7)}

I,e L = x + 1

So, The length of rectangle = L = x + 1

Hence,The expression which represent the length of the rectangle is x + 1 Answer

8 0
2 years ago
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