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guajiro [1.7K]
3 years ago
15

Estimating quotient for greater dividend

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
7 0
Yup it has to be a greater divedend if not answer would be completly  wrong
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Determine the equation of the line perpendicular to y = 1 - 1/4x and passing through the point (-3,5)
Verdich [7]

Answer:

y = 4x + 17

Step-by-step explanation:

y = 1 - 1/4x = - 1/4 x + 1 .... slope -1/4

perpendicular line slope = - (1 / (-1/4) = 4

pass (-3,5): (y-5) / (x - -3) = 4

y-5 = 4x + 12

y = 4x + 17

4 0
3 years ago
Use the confidence level and sample data to find a confidence interval for estimating the population mu. Round your answer to th
Schach [20]

Answer:  (587.67,596.33)

Step-by-step explanation:

The confidence interval for population mean is given by :-

\overline{x}\ \pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample mean : \overline{x}= 592 hours

Standard deviation\sigma= 25 hours

Sample size : n=90, which is a large sample(n<30), so we use z-test.

Significance level: 1-0.90=0.1

Critical value : z_{\alpha/2}=t_{22,0.025}=1.645

Then , the confidence interval for population mean will be  :-

592\ \pm\ (1.645)\dfrac{25}{\sqrt{90}}\\\\\approx592\pm4.33\\\\=(592-4.33,592+4.33)\\\\=(587.67,596.33)

Hence, the ​ 90% confidence interval for the mean​ life \mu of all light bulbs of this type. is (587.67,596.33)

3 0
4 years ago
25a-3b+7a+25b-18a-16b+20b
GrogVix [38]
The answer to ur question is 19a+b
8 0
3 years ago
1 1/3 x 3/5 and simplify
ser-zykov [4K]

Answer:

4/5

Step-by-step explanation:

1 1/3 = 4/3

4/3 x 3/5

times the denominator and numerator = 12/15

divide by HCF which is 3

4/5

8 0
3 years ago
Which percent change represents a percent increase
OLEGan [10]

Answer:

b

Step-by-step explanation:

7 0
3 years ago
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