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Tcecarenko [31]
3 years ago
10

Paper and Pencil Construction: Construct a Line Perpendicular to a Given Line through a Point on the Line

Mathematics
1 answer:
Zarrin [17]3 years ago
5 0

Step-by-step explanation:

wait a person was about to report it sorry ;/

had to take it off

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The width of a plant cell is approximately 0.00001276 meter. Use scientific notation to write the width of the plant cell. NEED
Ilya [14]
It would be 1.276 x 10(5) the exponent is 5 next to the 10
6 0
3 years ago
Bob purchase a bus pass card with 320 points,each weeks costs 20 points for unlimited bus rides
blagie [28]
It would be 20 points bcuz it says each week it costs 20 points for unlimited bus rides
8 0
3 years ago
Carlos is in the 12% tax bracket. Over the course of the year, he paid $2,000 in student loan interest. This $2,000 decrease in
gulaghasi [49]

Answer:

The $2,000 decrease in Carlos's taxable income will save him

= \frac{12}{100} \times \$2000 = \$240.

Step-by-step explanation:

i) Carlos is in the 12% tax bracket.

ii)The $2,000 decrease in Carlos's taxable income will save him

= \frac{12}{100} \times \$2000 = \$240.

3 0
3 years ago
When Carson runs the 400 meter dash, his finishing times are normally distributed with a mean of 65 seconds and a standard devia
just olya [345]

Given Information:  

Mean time to finish 400 meter dash  = μ = 65 seconds

Standard deviation to finish 400 meter dash = σ = 2.5 seconds  

Confidence level = 95%

Required Information:  

95% confidence interval = ?

Answer:  

 CI = 60 \: to \: 70 \: seconds

Step-by-step explanation:  

In the normal distribution, the empirical rule states approximately 68% of all the data lie within 1 standard deviation from the mean, approximately 95% of all the data lie within 2 standard deviations from the mean and approximately 99.7% of all the data lie within 3 standard deviations from the mean.

The confidence interval for 95% confidence limit is given by

 CI = \mu \pm 2\sigma

Since approximately 95% of all the data lie within 2 standard deviations from the mean. μ is the mean time Carson takes to finish 400 meter dash and σ is the standard deviation.

 CI = 65 \pm 2(2.5)

 CI = 65 \pm 5

 CI = 65 - 5 \: to \: 65 + 5

CI = 60 \: to \: 70 \: seconds

Therefore, the 95% confidence interval is between 60 to 70 seconds

What does it mean?  

It means that we are 95% confident that the Carson's mean to finish 400 meter dash is within the interval of (60, 70).

4 0
3 years ago
Which are equivalent to 3
Studentka2010 [4]

Answer: 9/12 is equivalent to 3/4.

Explanation: 3 times 12 = 36 and 4 times 9 = 36.

Hope this helps!

5 0
2 years ago
Read 2 more answers
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