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JulsSmile [24]
2 years ago
10

I dont understand how to do this ​

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

Answer:

A

Step-by-step explanation:

since it is <= we know that it is including the possibility of being equal so it is not a dotted line leaving only A and B as options. since its is <= it must be on the as the x increases the y must decrease. so the answer is A.

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zavuch27 [327]

She has 93 envelopes in all


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3 years ago
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The times of the runners in a marathon are normally distributed, with a mean of 3 hours and 50 minutes and a standard deviation
balu736 [363]

Answer: 0.16

Step-by-step explanation:

Given that the run times provided are normally distributed ;

Mean(x) of distribution = 3 hours 50 minutes

Standard deviation(s) = 30 minutes

The probability that a randomly selected runner has a time less than or equal to 3 hours 20 minutes

3 hours 20 minutes = (3 hrs 50 mins - 30 mins):

This is equivalent to :

[mean(x) - 1 standard deviation]

z 1 standard deviation within the mean = 0.84

z, 1 standard deviation outside the mean equals:

P(1 - z value , 1standard deviation within the mean)

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7 0
3 years ago
If you have 6 donuts and they cost 2.70 what is the cost for one donut
Lilit [14]

Answer:

<h2>0.45 </h2><h2 />

Step-by-step explanation:

<u>   2.70    </u>

6 donuts

= 0.45 each donut

8 0
3 years ago
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On a single roll of a pair of dice, what are the odds against rolling a sum of 7? Please help ASAP!!! :(
Kobotan [32]
Honestly I don’t remember how to do this but u can try .083 but don’t count on it
7 0
2 years ago
Solve this problem using the Distributive Property.<br><br> 2 ( 7 + 8 ) =
maria [59]

Answer:

30

Step-by-step explanation:

Original Equation: 2(7 + 8)

So you have to multiply 2 by 7 which equals 14

Then you multiply 2 by 8 which equals 16

Your equation should now look like this: 14 + 16

Add 14 and 16 together.

Your answer is 30

Hope I helped :)

Please condsider brainliest

7 0
3 years ago
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