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coldgirl [10]
3 years ago
5

PLEASE HELP! Lina and Josh each made a factor tree to find the prime factorization of 126.

Mathematics
2 answers:
iogann1982 [59]3 years ago
7 0
Its A if they are talking about a prime factorization tree.<span />
Pani-rosa [81]3 years ago
4 0

Answer:

Lina’s solution is correct because it expresses 126 as a product of prime factors.

Step-by-step explanation:

Given :

Lina             Josh      

126                 126

/ \                     /   \

3 42                2  63

/ \                          /   \

6 7                       9   7

/ \

2 3

Solution:

Since Josh didn't solved it further as 9 can be written as 3 \times 3  further.

So, Josh's solution is incorrect.

Hence option A is correct.

Lina’s solution is correct because it expresses 126 as a product of prime factors.

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A software engineer is creating a new computer software program. She wants to make sure that the crash rate is extremely low so
Soloha48 [4]

Answer:

a) the sample size is 400

b) 95% confidence Interval for p is ( 0.0286, 0.0714 )

Step-by-step explanation:

Given the data in the question;

sample size n = 400

x = 20

p = x / n = 20 / 400 = 0.05

q = 1 - p = 1 - 0.05 = 0.95

a)

n = 400

Hence, the sample size is 400

b) 95% confidence Interval for p;

At 95% confidence interval,

significance level ∝ = 1 - 95% = 1 - 0.95 = 0.05

∝/2 = 0.05 / 2 = 0.025

so, Z critical Value ; Z_{\alpha /2 = 1.96  { from table }

So for Confidence Interval for p;

⇒ p' ± Z_{\alpha /2√( p'q' / n )

we substitute

⇒ 0.05 ± 1.96√( (0.05 × 0.95 ) / 400 )

⇒ 0.05 ± 1.96√( 0.00011875 )

⇒ 0.05 ± 1.96 × 0.010897

⇒ 0.05 ± 0.021358

⇒ ( 0.05 - 0.021358 ), ( 0.05 + 0.021358 )

⇒ ( 0.0286, 0.0714 )

Therefore, 95% confidence Interval for p is ( 0.0286, 0.0714 )

8 0
3 years ago
65 miles divided by 6hr 20mins
polet [3.4K]
Lol i did this on my calculator
this is what i got 
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idk if it will help

6 0
3 years ago
WILL GIVE BRAINLIEST IF CORRECT!!!!
Rzqust [24]
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aleksklad [387]

Answer:

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Step-by-step explanation:

I'm sorry but I rlly don't rember how I did it because I did this question on a quiz and the teacher said this was that answer but not how to get it.

3 0
2 years ago
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Sindrei [870]
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