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nadya68 [22]
2 years ago
15

What is the difference between 25 and 21.2?

Mathematics
1 answer:
klemol [59]2 years ago
8 0

Answer: 3.8

Step-by-step explanation:

25.0

-

21.2

--------------

3.8

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X= 10 I did it on my calculator so don’t worry :)
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3 years ago
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Please help me....asap
Solnce55 [7]

Answer:

D. No, he chose members that were not part of the population

Step-by-step explanation:

A random sample is a sampling technique in which each sample has an equal chance of being chosen. For example, blindly selecting five names from a hat filled with named sheets of paper is a random sample.

Daniel's sample is not random because each sample did not have an equal probability of being chosen. All names he does not recognize are immediately eliminated from being chosen. With this, we can eliminate choices A and B.

Daniel did not chose names from the town he was collecting data for. He chose ones from his own neighborhood. It wasn't in the population he was focusing on.

Therefore, the best answer is D.

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2 years ago
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For this case we have the following system of equations:

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To solve, we add both equations:

8x-8x-9y-6y = -122-28\\-15y = -150\\y = \frac {-150} {- 15}\\y = 10

We find the value of "x":

8x = -122 + 9y\\x = \frac {-122 + 9y} {8}\\x = \frac {-122 + 9 (10)} {8}\\x = \frac {-122 + 90} {8}\\x = \frac {-32} {8}\\x = -4

The solution is (-4,10)

ANswer:

Option C

5 0
3 years ago
The length of a rectangle is 10x² – 13x - 3 / 4x + 3 and the width is 4x² + 11x + 6 / 2x - 3 inches. Find the area of the rectan
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What is the y-intercept of the line represented by y = 4x?​
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Answer: 0

Step-by-step explanation: In order to identify the <em>y-intercept</em> of this equation, we want to get this equation into slope-intercept form which is more commonly known as y = mx + b form.

The problem is our equation doesn't match up quite so well with the formula y = mx + b. Our slope or <em>m</em> which is represented by the coefficient of the <em>x</em> <em>term</em> is clearly +4 but what is our y-intercept or b?

Well y = 4x can be thought of as y = 4x + 0 so you can see that our b or y-intercept equals 0.

5 0
4 years ago
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