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Lerok [7]
4 years ago
14

What is -6 7/8 divided by -3 3/4 in simplest form

Mathematics
2 answers:
mixas84 [53]4 years ago
5 0
 11/6 so take that 1 and 5/6
DaniilM [7]4 years ago
4 0
So first change the mixed number into a improper number so your problem will look like this(55/8)/-(15/4) then you divide both and then you will get 11/6 so then you take that 1 and 5/6

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What are the equivalent expressions?
Nataliya [291]
The correct answer is
D. 4^3*5^3 and 20^3
Because if you calculate
= (4*5)^3= 20^3
6 0
3 years ago
A random sample of 64 freshmen spent an average of 14 hours per week watching television. the sample standard deviation was 32 h
NemiM [27]

Answer:

+/- 1.9983

Step-by-step explanation:

The critical values for a confidence interval for the population mean, with population standard deviation not known, are obtained from the student's t distribution.

The sample size is given as 64. The degrees of freedom will thus be;

sample size - 1 = 64 - 1 = 63

The confidence level is given as 95%. The level of significance will thus be;

100 - 95 = 5%.

The area in the right-tail will thus be 2.5%. Therefore, we looking for a t-value such that the area to its right is 2.5% and the degrees of freedom being 63. From the t-tables we have;

+/- 1.9983

3 0
3 years ago
2) If the perimeter of the following triangle is 27 cm:<br> 3x + 3<br> 2x + 5<br> x + 7
klemol [59]

Answer:

x= 8 (3x + 3)

Step-by-step explanation:

3 x 8 = 24

24+3= 27

Hope this helped!! :)

4 0
4 years ago
Apple juice has a pH of 2.9 and water has a pH of 7. Which substance has a higher concentration of hydro noun ions and how much
lara [203]

D
If your pH is lower, it has more Hydronium ions 
As a rule, for every decrease in pH, there is 10 times more H3O+ so since it is 4.1 there should be a bit more than 10^4. So it has to be D 
3 0
3 years ago
Researchers sampled 178 young women who recently participated in a STEM program. Of the 178 STEM​ participants, 110 were in urba
fenix001 [56]

Answer:

Probability from Urban Area = \frac{55}{89}

Probability NOT from Rural Area = \frac{83}{89}

Step-by-step explanation:

Total 178

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Suburban 56

Rural 12

Hence, probability of x is number of x divided by total.

So, probability that she is from an urban area = 110/178 = 55/89

And

probability NOT a rural area (means urban and suburban which is 110+56=166) = 166/178 = 83/89

3 0
3 years ago
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