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Kipish [7]
3 years ago
7

2) In the following diagram, a ladder is leaning against the building. What is the

Mathematics
1 answer:
bogdanovich [222]3 years ago
8 0

Answer:

I believe the answer is about 34

Step-by-step explanation:

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What's the correlation coefficient of this date . 10,11,16,9,7,15,16,10,96,51,62,58,89,81,46,51
dem82 [27]
Assuming the question is in the wrong format and"date" is data.
I chose X= 10,11,16,9,7,15,16,10 and Y= <span>96,51,62,58,89,81,46,51
the correlation cooefficent is -0.3351

</span>

8 0
3 years ago
What is 7p-(-5)+(-1)
nika2105 [10]
7p-(-5)+(-1)
7p+5-1
7p+4
7 0
3 years ago
Read 2 more answers
The average age of online consumers a few years ago was 24.1 years. As older individuals gain confidence with the​ Internet, it
love history [14]

Answer:

The correct option is (C).

Step-by-step explanation:

A null hypothesis is a sort of hypothesis used in statistics that intends that no statistical significance exists in a set of given observations.  

It is a hypothesis of no difference.

It is typically the hypothesis a scientist or experimenter will attempt to refute or discard. It is denoted by H₀.

Whereas the alternative hypothesis is a contradicting statement tot he null hypothesis. It is denoted by Hₐ.

In this case we need to test whether the average age of online consumers has increased or not.

From previous data we know that the average age of online consumers a few years ago was 24.1 years.

A one-sample mean test can be used to determine whether the mean age has increased or not.

The hypothesis for the test can be defined as follows:

<em>H₀</em>: The average age of online consumers is 24.1 years, i.e. <em>μ</em> = 24.1.

<em>Hₐ</em>: The average age of online consumers is more than 24.1 years, i.e. <em>μ</em> > 24.1.

Thus, the correct option is (C).

6 0
3 years ago
The sum of two numbers is 125. Five times one number minus three times the other is 41. Determine these numbers
vivado [14]
(x + y = 125)3
5x - 3y = 41
3x - 3y = 375
8x = 416, x = 52
52 + y = 125, y = 73

Solution: the numbers are 52 and 73
4 0
3 years ago
I will give brainlest and 75 points
Lelechka [254]

Answer:

3

4

2

1

Step-by-step explanation

3.2x+5.7=2.5x. X=-8.142857

10.1x-1.6x+44=-7 x=-6

7.9x+x+4=1.1x-16 x=-2.564103

1/4x+5/2x-2=4-1/4x x=2

5 0
3 years ago
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