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8090 [49]
3 years ago
9

How many edges does the following shape have?

Mathematics
2 answers:
rodikova [14]3 years ago
8 0
The following shape has 8 edges
trasher [3.6K]3 years ago
8 0
The following shape has 8 edges
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Please help asap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! will give brainliest!!!!!!
aksik [14]

Answer:

X is 40

Step-by-step explanation:

Look it up

3 0
3 years ago
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A school has 300 students.If the ratio of boys to girls is 31 to 44, how many more girls are there in the school?
garri49 [273]

Answer:

there would be 52 more girls I think

Step-by-step explanation:

let x = multiplier then

31x =number of boys

44x = number of girls

Boys + girls = 300

44x + 31x =300

75x = 300

x = 300/75

x = 4 is the multiplier

therefore:

44*4 = 176 girls

31*4 = 124 boys

dif = 52 more girls than boys

hope this helped :)

5 0
3 years ago
Please help ASAP!<br><br> thanks in advance
babunello [35]

Answer:

# 2 the you are on the right one

Step-by-step explanation:

6 0
3 years ago
8.<br> (19x - 18)<br> (10x -9<br> (7x+1)
harkovskaia [24]

Answer:

162

Step-by-step explanation:

assuming you forgot the parentheses at the end of '9'. Do you want an explanation?

4 0
3 years ago
A professor at a university wants to estimate the average number of hours of sleep the students get during exam week. The profes
balandron [24]

Answer:

The sample size is n = 2

Step-by-step explanation:

From the question we are told that

   The margin of error is  E =4.266

    The standard deviation is  \sigma = 2.539

From the question we are told the confidence level is  99% , hence the level of significance is    

      \alpha = (100 - 99 ) \%

=>   \alpha = 0.01

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } =  2.58

Generally the sample size is mathematically represented as  

   n = [\frac{Z_{\frac{\alpha }{2} } *  \sigma }{E} ] ^2

=>  n = [\frac{2.58  *  2.539  }{4.266} ] ^2

=>  n = 2

6 0
3 years ago
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