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Alex_Xolod [135]
3 years ago
11

Write an equation of the line that passes through the points (4,7) and is parallel to and perpendicular to the line y=1/2x-1 ans

wer
Mathematics
1 answer:
emmasim [6.3K]3 years ago
6 0
M = 0.5
y – 7 = 0.5 ( x – 4 )
y = 0.5x + 5
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A group of students entered the museum at 3:30 pm and came out at 5:15. how long were they in the museum ?
aksik [14]

Answer:

1 hour and 45 minutes

Hope this helped, have a nice day! :)

8 0
3 years ago
For a given IQ test, an individual is considered a genius if their score falls more than three standard deviations from the mean
ki77a [65]

Answer:

P(Z>3) = 1-P(Z

So then the probability that an individual present and IQ higher than 3 deviation from the mean is 0.00135

And if we find the number of individuals that can be considered as genius we got: 0.00135*1500=2.025

And we can say that the answer is a.2

Step-by-step explanation:

1) Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

2) Solution to the problem

Let X the random variable that represent the IQ scores of a population, and for this case we know the distribution for X is given by:

X \sim N(\mu=?,\sigma=?)  

We are interested on this probability

P(X>X+3\mu)

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

And we can find the following probablity:

P(Z>3) = 1-P(Z

So then the probability that an individual present and IQ higher than 3 deviation from the mean is 0.00135

And if we find the number of individuals that can be considered as genius we got: 0.00135*1500=2.025

And we can say that the answer is a/2.0

3 0
3 years ago
Whoever helps gets brainlyess answer and it's worth 10 points :)
Anna71 [15]
Since he is using 3x more flower than the original, you would multiply the 2 tsp by 3 as well

6tsp is the answer
7 0
3 years ago
Read 2 more answers
Which is the MOST precise measurement this ruler can give for the green strip of paper? A) 4.00 inches B) 4.25 inches C) 4.50 in
Alenkinab [10]
The most precise is 4.00 because that is equal to 10.16 cm and that is the most closes to an exact measurment.
3 0
3 years ago
Can someone plz help me I don’t understand how to do this and I am really struggling with the online stuff
sweet [91]

Answer:

A

Step-by-step explanation:

x=6.28111...

100 x=628.111...

1000x=6281.111...

subtract

900x=5653

x=5653/900

density of iodine=785×5653/900≈4930.672222...

Here 2 is repeating .

3 0
3 years ago
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