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irinina [24]
3 years ago
13

PLEASE HELP MEEEEEEEEEE

Mathematics
1 answer:
ololo11 [35]3 years ago
4 0

Answer:

Step-by-step explanation:

step 2 is incorrect.

step 2: -40-75+100+200

step 3:  -115+300

step 4 : 185

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Im doing this problem where I have to deal with fractions that have variables in them. here is the problem. I linked the picture
AVprozaik [17]
First you should combine n/6-5n/12
that goes to 2n/12-5n/12 which equals -3n/12

then you should cross multiply -3n/12 by 1/16
12(1)=-3n(16)
12=-48n then solve for n by dividing by -48
-12/48=n simplify -1/4=n or -.25=n
7 0
3 years ago
a study studied the birth weights of 1,999 babies born in the United States. The mean weight was 3234 grams with a standard devi
Aleks [24]

Answer:

1899

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 3234

Standard deviation = 871

Percentage of newborns who weighed between 1492 grams and 4976 grams:

1492 = 3234 - 2*871

So 1492 is two standard deviations below the mean.

4976 = 3234 + 2*871

So 4976 is two standard deviations above the mean.

By the Empirical Rule, 95% of newborns weighed between 1492 grams and 4976 grams.

Out of 1999:

0.95*1999 = 1899

So the answer is 1899

8 0
3 years ago
Please please please help me with this question <br>ASAP!!!!!!!!​
Zigmanuir [339]

Answer:

red= about 324°

blue= 360°

Green=about 144°

Step-by-step explanation:

6 0
3 years ago
The density of oxygen is 0.001429 grams per cubic centimeter. How is this number written in scientific notation?
miskamm [114]

Answer:

How is this number written in scientific notation? A. 1.429 x 10.

3 0
3 years ago
What is the domain of this function? 
hichkok12 [17]

Answer:

no real numbers

Step-by-step explanation:

5 0
3 years ago
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