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Lynna [10]
3 years ago
8

Please help will give brainliest

Mathematics
1 answer:
mylen [45]3 years ago
8 0
3 ,4,5 .....................
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58 points I need helpppp!
cricket20 [7]

Answer:

14. x=30, y=15, z=165

15. x=10, y=25

Step-by-step explanation:

5 0
3 years ago
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A. 55<br> b. 70<br> c. 110<br> d. 125
morpeh [17]

Answer:

b

Step-by-step explanation:

7 0
2 years ago
Simplified fraction of 49 out of 112
SVETLANKA909090 [29]
The simplified fraction of 49\112 is 7/16. This results from you finding a common number which can divide into 49 and 112 equally. In this case the number is 7. Resulting in the answer 7/16.
7 0
3 years ago
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What is the first term of the quotation of the following division problem?
sveticcg [70]

Answer:

I believe it's D.

Step-by-step explanation:

x^2 times x

Hope This Helps!       Have A Nice Day!!

5 0
3 years ago
Babcock and Marks (2010) reviewed survey data from 2003–2005 and obtained an average of μ = 14 hours per week spent studying by
Dmitry [639]

Answer:

We do not have enough evidence to accept H₀

Step-by-step explanation:

Normal Distribution

size sample  =  n = 64   (very small sample for evaluating population of 5  years

Standard deviation 4,8

1.- Test hypothesis

H₀             null hypothesis        ⇒               μ₀ = 14       and

Hₐ     alternative hypothesis   ⇒                μ₀ ≠ 14

2.- z(c)  we assume α = 0,05  as we are dealing with a two test tail we should  consider   α/2  = 0.025.

From z table we the z(c) value

z(c) = 1.96           and of course by symmetry   z(c) = -1.96

3.- We proceed to compute z(s)

z(s)  = [ (  μ -  μ₀ ) /( σ/√n) ]           ⇒    z(s)  = - (1.5)*√64/4.8

z(s)  = - 2.5

We compare z(s)  and z(c)

z(s) < z(c)     -2.5  < -1.96  meaning  z(s) is in the rejection zone

we reject H₀ .

From the start we indicate sample size as to small for the experiment nonetheless we found that we dont have enough evidence to accept H₀

6 0
3 years ago
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