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2 years ago

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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In ^ABC, AB = 5 and AC = 14. Find m

VikaD [51]

Answer:

im not sure i understand the question, could you be more specific?

Step-by-step explanation:

3 0

3 years ago

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Solve: 5(2+2x)-3x>17

Vikentia [17]

Answer:

10+10x-3x>17

10+7x>17

7x>17-10

7x>7

x>1

Hope it helps:-)

3 0

3 years ago

Suppose that 45% of people have dogs. If two people are randomly chosen, what is the probability that they both have a dog

mylen [45]

Answer:

$P(Dogs) = 0.2025$

Step-by-step explanation:

Given

$Proportion, p = 45\%$

Required

Probability of two people having dog

First, we have to convert the given parameter to decimal

$p = \frac{45}{100}$

$p = 0.45$

Let P(Dogs) represent the required probability;

This is calculated as thus;

P(Dogs) = Probability of first person having a dog * Probability of second person having a dog

$P(Dogs) = p * p$

$P(Dogs) = 0.45 * 0.45$

$P(Dogs) = 0.45^2$

$P(Dogs) = 0.2025$

Hence, the probability of 2 people having a dog is  $P(Dogs) = 0.2025$ 

4 0

3 years ago

Solve step - by - step. 5b-1>=-11 Plz help!

maks197457 [2]

It would -2 because you have to bring over the -1 on the other side of the equal sign. so you would do -11 plus 1 and you will get -10 then you would 5b÷-10 (simplify).5b=-10
b=-2

7 0

3 years ago

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The sum of two consecutive even integers is −234. what are the two integers

dolphi86 [110]

Does this help answer you question?

2x+(2x+2)=234

4x=232

x=58

So, 2x=2(58)=116

116+118=234

4 0

3 years ago

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