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Alex787 [66]
2 years ago
15

30 POINTS!!!!!

Mathematics
1 answer:
Whitepunk [10]2 years ago
8 0

Answer:

A third group that does not use a cell phone before bedtime

Step-by-step explanation:

Both groups have the use of a cellphone before bedtime, and the amount used would affect their time to fall asleep, but another group is needed that doesn't use a cellphone to calculate the effect of it not being used and seeing the results.

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Nataly_w [17]

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64 degrees

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attashe74 [19]

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8 0
3 years ago
Order of Operations- -6+(-30) divided by 5-(-2). Explain step by step
Reil [10]

Answer:

-36/7 or -5.14287

Step-by-step explanation:

so I would get rid of parentheses you do not need them

\frac{-6+-30}{5--2}=\frac{-36}{7}(because when two negative come before two numbers like -x-y they are being added but negative is present to the result of the sum, when one negative sign comes after a number and the other negative sign comes before a number, like x--y they are being added as well but negative is not present to the result of the sum)

-36/7=-5.1428

hope this helps!

7 0
3 years ago
The sum of three consecutive integers is −42. find the three integers.
erica [24]
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The three consectutive integers are -15, -14 and -13
4 0
3 years ago
Simplify.<br> +6 - 4 =<br><br><br> please help ..........
Step2247 [10]

Answer:

2

Step-by-step explanation:

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2 years ago
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