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jonny [76]
3 years ago
15

If two lines are perpendicular , what do we know about their slopes ?

Mathematics
1 answer:
vovangra [49]3 years ago
6 0

Answer:

If two lines are perpendicular and neither one is vertical, then one of the lines has a positive slope, and the other has a negative slope. Hope this helps.

Step-by-step explanation:

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Consider the following ordered data: 2 5 5 6 7 7 8 9 10 find Q3+1.5
Ksenya-84 [330]
You figure that your own >:(
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3 years ago
Which of the following represents a Type I error for the null and alternative hypotheses H0:μ≤$3,200 and Ha:μ>$3,200, where μ
Nuetrik [128]

Answer:

Option a) Type I error would occur if we reject null hypothesis and conclude that the average amount is greater than $3,200 when in fact the average amount is $3,200 or less.        

Step-by-step explanation:

We are given the following information in the question:

H_{0}: \mu \leq \$3,200\\H_A: \mu > \$3,200

where μ is the average amount of money in a savings account for a person aged 30 to 40.

Type I error:

  • Type I error is also known as a “false positive” and is the error of rejecting a null  hypothesis when it is actually true.
  • In other words, this is the error of accepting an  alternative hypothesis when the results can be  attributed by null hypothesis.
  • A type I error occurs during the hypothesis testing process when a null hypothesis is rejected, even though it is correct and should not be rejected.

Thus, in the above hypothesis type  error will occur when we reject the null hypothesis even when it is true.

Option a) Type I error would occur if we reject null hypothesis and conclude that the average amount is greater than $3,200 when in fact the average amount is $3,200 or less.

3 0
3 years ago
How can you compare two ratios that are in fractional and percent form?
timofeeve [1]
Ratio is just a single fraction. Whereas proportion is a ratio between 2 fractions. The basic difference is Ratio is always with respect to some large quantities or superior quantities, whereas proportion is between same kind of quantities.
4 0
3 years ago
1/4 times what equals 9
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Answer:

isnt that

Step-by-step explanation:

the answer is 36

my theory: 9*4=36/4=<em><u>9</u></em>

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V=B*h

To double the volume , we have to double the height

then V2=B*2h=2*V
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3 years ago
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