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Kamila [148]
3 years ago
15

How do you rename how do you rename five seven out of eight ​

Mathematics
1 answer:
allochka39001 [22]3 years ago
6 0
If you mean 5 7/8, u can rename it to 47/8
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Plz help my with this!
Vera_Pavlovna [14]

Answer:

approx.  23

Step-by-step explanation:

4+9+10=23

6 0
3 years ago
The figure below is a square with an area of 625 square centimeters. The length of a rectangle is 40% more than the length of th
Harlamova29_29 [7]
For a square:

A = s2, where s = side (the length and the width are the same)
625 = s2
±25 = s

length of rectangle = 1.4 · length of square
length of rectangle = 1.4(25)
length of rectangle = 35
4 0
2 years ago
Statistics professors believe the average number of headaches per semester for all students is more than 18. From a random sampl
kompoz [17]

Complete Question

Statistics professors believe the average number of headaches per semester for all students is more than 18. From a random sample of 15 students, the professors find the mean number of headaches is 19 and the standard deviation is 1.7. Assume the population distribution of number of headaches is normal.the correct conclusion at \alpha =0.001 is?

Answer:

There is no sufficient evidence to support the professor believe

Step-by-step explanation:

From the question we are told that

     The population mean is  \mu =  18

     The sample size is  n  =  15

      The sample mean is  \=  x  =  19

      The standard deviation is  \sigma =  1.7

      The level of significance is  \alpha  =  0.001

The null hypothesis is  H_o:  \mu = 18

The  alternative hypothesis is  H_a :  \mu > 18

 The critical value of the level of significance from the normal distribution table is    

         Z_{\alpha } =  3.290527

The test hypothesis is mathematically represented as

           t =  \frac{\= x  -  \mu }{ \frac{\sigma}{ \sqrt{n} } }

substituting values  

         t =  \frac{ 19  - 18}{ \frac{1.7}{ \sqrt{15} } }

         t =  2.28

Looking at the value of  t and  Z_{\alpha } we can see that t <  Z_{\alpha } so we fail to reject the null hypothesis.

This mean that there is no sufficient evidence to support the professor believe

     

       

3 0
3 years ago
-3x + y + 8 - 5y + 7x
djyliett [7]
The answer is : 4x-4y+8
5 0
2 years ago
Read 2 more answers
0.1x + 9 ≤ 45 what is x?
soldi70 [24.7K]
Hi Robles928518, 

0,1x + 9 ≤ 45
0,1x ≤ 45 - 9
0,1x ≤ 36
x ≤ 360

x ∈ ] - ∞ ; 360 ]
5 0
2 years ago
Read 2 more answers
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