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katrin2010 [14]

2 years ago

6

The product of a number and the number decreased by 4 is 60. write a quadratic equation that models the verbal sentence. let n r

epresent the number find the number

1 answer:

USPshnik [31]2 years ago

6 0

Answer:

n = 2 + (60/2)

Step-by-step explanation:

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Consider H0: μ = 45 versus H1: μ < 45. A random sample of 25 observations produced a sample mean of 41.8. Using α = .025 and

a_sh-v [17]

Given
$H0: \ \mu=45 \\ \\ H1: \ \mu\ \textless \ 45$
This is a one-tailed test.

$z= \frac{41.8-45}{6/ \sqrt{25} } = \frac{-3.2}{6/5} = \frac{-3.2}{1.2} =-2.6667$

$P(z\ \textless \ -2.6667)=0.00383$

Since the p-value of the sample statistic (0.00383) is less that the significant level (0.025), we reject the null hypothesis.

5 0

3 years ago

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siniylev [52]

Answer:

4

Step-by-step explanation:

5 0

3 years ago

Determine which equation below has a solution of x= 1/2

masya89 [10]

Answer:2x-1=0

Step-by-step explanation:

x=1/2

Cross multiply

2x=1

Subtract 1 from both sides

2x-1=1-1

2x-1=0

3 0

3 years ago

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Romashka-Z-Leto [24]

Can I get the question please. I might help you with your question.

3 0

3 years ago

Do the ratios 20/10 and 1/2 form a proportion?

Tems11 [23]

Answer:

Yes . Divide by 10 for 10/20 to get 1/2.

10/10= 1

20/10= 2

10/20= 1/2

6 0

3 years ago