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Firlakuza [10]
3 years ago
13

Find the distance AB between the points A (8, 2) and B(3,9). Round your answer to the nearest

Mathematics
1 answer:
LenKa [72]3 years ago
6 0

Answer:

<h3>d = 8.6</h3><h3>d = √74</h3>

Step-by-step explanation:

A (8, 2) = (x_1 ,y_1)\\ B(3,9) = (x_2,y_2)\\\\d = \sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}\\\\d =\sqrt{\left(3-8\right)^2+\left(9-2\right)^2}\\\\d=\sqrt{(5)^2+(7)^2}\\\\d=\sqrt{25+49}\\\\d=\sqrt{74}\\\\d = 8.6023\\\\d = 8.6

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At the gym, Tika spends twice as much time doing aerobics than weight training. She stretches for one fifth of the time she spen
Dafna1 [17]

Answer:

Her total workout is 2w+w+\frac{w}{5}.

Step-by-step explanation:

Consider the provided information.

Let w be the amount of time Tika spends on weight training.

Tika spends twice as much time doing aerobics than weight training.

It means she spends 2w time doing aerobics.

She stretches for one-fifth of the time she spends on weight training.

It means she spends \frac{w}{5} time for stretches.

The total workout time is:

2w+w+\frac{w}{5}

Hence, her total workout is 2w+w+\frac{w}{5}.

8 0
3 years ago
Square root of 81 minus square root of negative 48 answer in a + bi form
galina1969 [7]

Answer:

9-6.92820323i Nothing else can be done.

Step-by-step explanation:

-48 is not a perfect square but 81 is a square. When you try to square -48 it comes to be 6.92820323i.

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3 years ago
A spinner is divided into many sections of equal size. Some sections are red, some are blue, and the remaining are green. The pr
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It would be D. 5/20 because the other 2 you would add then subtract and then you would just put the answer yo get from subtracting it over 20. 

8 0
3 years ago
If 3x - 8= -2, find the value of x - 6.
siniylev [52]

Answer:

x-6 = -4

Step-by-step explanation:

3x - 8= -2

Add 8 to each side

3x - 8+8= -2+8

3x = 6

Divide by 3

3x/3 = 6/2

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2-6 = -4

4 0
3 years ago
Read 2 more answers
Please help i will give brainly :
Lubov Fominskaja [6]

1) The x-axis represents the energy (E), in joules. The y-axis represents the amplitude (x), in milimeters.

2) The curve depicts an <em>monotonous decrecent</em> rate of change.

3) The amplitude is directly proportional to the root square of the energy.

<h3>How to analyze a graph relationship between two variables</h3>

In this question we have a relationship between two variables, in which we must apply principles of <em>functional</em> analysis to respond three questions presented in the statement.

Now we proceed to answer the three questions below:

  1. <em>What is on the x-axis? The y-axis?</em> R/ The x-axis represents the energy (E), in joules. The y-axis represents the amplitude (x), in milimeters.
  2. <em>How would you describe the rate of change of the line?</em> R/ The curve depicts an <em>monotonous decrecent</em> rate of change, that is, the slope converges to zero when the energy tends to infinite.
  3. <em>What does this tell you about the relationship between amplitude and energy?</em> R/ The curve show a strong similarity with a function of the form x = A\cdot \sqrt{E}. Hence, the amplitude is directly proportional to the root square of the energy.

To learn more on functions, we kindly invite to check this verified question: brainly.com/question/12431044

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2 years ago
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