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o-na [289]
3 years ago
8

What is the reciprocal of 3 1/5?

Mathematics
2 answers:
aivan3 [116]3 years ago
5 0

if u like it,u can start following me...

Colt1911 [192]3 years ago
4 0

Answer:

0.3125

Step-by-step explanation:

You might be interested in
Independent random samples of vehicles traveling past a given point on an interstate highway have been observed on monday versus
quester [9]
Hi! 

To compare this two sets of data, you need to use a t-student test:

You have the following data:

-Monday n1=16; <span>x̄1=59,4 mph; s1=3,7 mph

-Wednesday n2=20;  </span>x̄2=56,3 mph; s2=4,4 mph

You need to calculate the statistical t, and compare it with the value from tables. If the value you obtained is bigger than the tabulated one, there is a statistically significant difference between the two samples.

t= \frac{X1-X2}{ \sqrt{ \frac{(n1-1)* s1^{2}+(n2-1)* s2^{2} }{n1+n2-2}} * \sqrt{ \frac{1}{n1}+ \frac{1}{n2}} } =2,2510

To calculate the degrees of freedom you need to use the following equation:

df= \frac{ (\frac{ s1^{2}}{n1} + \frac{ s2^{2}}{n2})^{2}}{ \frac{(s1^{2}/n1)^{2}}{n1-1}+ \frac{(s2^{2}/n2)^{2}}{n2-1}}=33,89≈34

The tabulated value at 0,05 level (using two-tails, as the distribution is normal) is 2,03. https://www.danielsoper.com/statcalc/calculator.aspx?id=10

So, as the calculated value is higher than the critical tabulated one, we can conclude that the average speed for all vehicles was higher on Monday than on Wednesday.



5 0
3 years ago
Plz help fast will mark the brainiest!!!
tiny-mole [99]
3x10^-6 is the answer
3 0
2 years ago
If Ac={vt2/r) and vt=2 and r=2 find Ac<br>a. 4<br><br>b. 2<br><br>C. 1<br><br>D. 8​
ankoles [38]

given: Ac=\frac{vt2}r \quad vt=2 \quad r=2

$\therefore Ac=\frac{(2)2}{2}=2$

5 0
3 years ago
Help on these two plz help asp it's due tomorrow plz
zimovet [89]

Answer:

a =  615

Step-by-step explanation:


3 0
3 years ago
Help please with tis math problem im in 8th grade
siniylev [52]
A (verdadeiro)
e(verdadeiro)
5 0
3 years ago
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