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sdas [7]
3 years ago
12

Which of the following is an equation of a line perpendicular to the equation y=-2/3x-4

Mathematics
1 answer:
Bond [772]3 years ago
3 0

Answer:

B

Step-by-step explanation:

Perpendicular lines have related slopes. The slopes are negative reciprocals of each other. The slope of y=-2/3-4 is -2/3. So the perpendicular line will have slope 3/2. Y=3/2+1 is the solution.

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Answer:

The answer is 4

Step-by-step explanation:

8-40/4^3\\

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6 0
3 years ago
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What is origin? Write down the coordinates of origin. ​
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(0, 0)

Step-by-step explanation:

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4 0
3 years ago
The poll found that 38% of a random sample of 1012 American adults said they believe in ghosts. What is the lower bound for a 90
Brrunno [24]

Answer:

The lower bound for a 90% confidence interval for the percentage of all American adults who believe in ghosts is 0.3549

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

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For this problem, we have that:

n = 1012, \pi = 0.38

90% confidence level

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The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.38 - 1.645\sqrt{\frac{0.38*0.62}{1012}} = 0.3549

The lower bound for a 90% confidence interval for the percentage of all American adults who believe in ghosts is 0.3549

6 0
4 years ago
The product of 5 and a number is -80. find the number
klemol [59]

Answer:

x = -16

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1. divide 5 on both sides.

2. x = -16

5 0
3 years ago
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