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faltersainse [42]
3 years ago
10

What is the equation of a line that passes through the point (1,8) and is perpendicular to the line whose equation is y=x/2 + 3

Mathematics
1 answer:
yawa3891 [41]3 years ago
8 0

Answer:

y = -2x + 10

:)


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A ladder leaning against the side of a building touches the building at a point 12 meters from the ground. If the foot of the la
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I think the slope =21 m
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3 years ago
There are 5 red pens and 10 black pens in a cup. If a person randomly selects 3 of them, what is the probability that they're al
kolbaska11 [484]

Answer:

option a)

0.286

Step-by-step explanation:

Given that,

number of red pens in cup = 5

number of black pens in cup = 10

number of pen randomly selected = 3

There are 5 red pens and 10 black pens. So there are 5 + 10 = 15 pens in all.

probability of having all red pens = (5/15 x 4/14 x 3/13)

                                                       = 2/91

probability of having all black pens = (10/15 x 9/14 x 8/13)

                                                           = 24/91

probability that all pen are of same colour = 24/91 + 2/91

                                                                      =  2/7

                                                                      ≈ 0.286

7 0
3 years ago
What is the domain and range of the function?​
Ierofanga [76]

Answer:

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Step-by-step explanation:

6 0
2 years ago
PLEASE HELP <br><br> QUESTION IN PHOTO
Dmitry_Shevchenko [17]

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Step-by-step explanation:

8 0
3 years ago
The mean number of hours of study time per week for a sample of 562 students is 23. If the margin of error for the population me
Vadim26 [7]

Answer:

The 98% confidence interval for the mean number of hours of study time per week for all students is (20.9, 25.1).

Step-by-step explanation:

Confidence interval:

Sample mean plus/minus the margin of error.

In this question:

Mean of 23.

Margin of error 2.1.

Then

23 - 2.1 = 20.9

23 + 2.1 = 25.1

The 98% confidence interval for the mean number of hours of study time per week for all students is (20.9, 25.1).

3 0
2 years ago
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