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maksim [4K]
3 years ago
14

Find the coordinates of the midpoint of HK if H(-1,2) and K(-7,-4)

Mathematics
2 answers:
devlian [24]3 years ago
5 0
The coordinates would be at (-4.5,-1)
tankabanditka [31]3 years ago
5 0

Answer:

The midpoint of HK is (-4, 1)

Step-by-step explanation:

We are given two coordinates H(-1, 2) and K(-7, -4)

We need to find the midpoint of HK.

We have formula to find the midpoint.

(\frac{x_1 + x_2}{2} , \frac{y_1 + y_2}{2} }

Here x_1 = -1, y_1 = 2, x_2 = -7 and y_2 = -4

Now plug in these values in the above formula, we get

(\frac{-1 + (-7)}{2} , \frac{2 +(-4)}{2} )

(\frac{-8}{2}, \frac{-2}{2}  ) =  (-4, -1)

So, the midpoint of HK is (-4, 1)

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Lement3
Oksana_A [137]

Answer:

Its D

Step-by-step explanation:

There are 17 nonmetal elements, and all are located on the right side of the periodic table with the exception of hydrogen, which is on the top left side. Nonmetal elements have relatively low boiling points, are poor conductors of heat and electricity, and don't like to lose electrons.

Have a Great Day!!

4 0
3 years ago
In T-ball, the distance to each successive base is 50 feet. If the distance from home plate to the pitcher’s mound is 38 feet, h
JulijaS [17]

Answer:

<h2>The distance from the pitcher's mound and to second base is 37.99 approximately.</h2>

Step-by-step explanation:

The diamond is a square, which in this case has 50 feet long each side, and from home to pitcher is 38 feet. Notice that home is a vertex of the square and the pitcher's mound is the intersection of the diagonals, where they cut half.

We can find the distance from the pitcher to first base using Pythagorean's Theorem, where 50 feet is the hypothenuse.

50^{2} =38^{2}+x^{2}\\x^{2}=50^{2}-38^{2}\\x=\sqrt{2500-1444}\\ x=\sqrt{1056}\\ x \approx 32.5 \ ft

Therefore, the distance from the pitcher to first base is 32.5 feet, approximately.

Now, we can use again Pythagorean's Theorem to find the distance from pitcher to second base, where the hypothenuse is 50 feet.

50^{2}=32.5^{2}+y^{2}\\y^{2}=50^{2}-32.5^{2}\\y=\sqrt{2500-1056.25}\\ y =\sqrt{1443} \approx 37.99

Therefore, the distance from the pitcher's mound and to second base is 37.99 approximately.

<em>(this results make sense, because the diagonals of a square intersect at half, that means all bases have the same distance from pitcher's mound, so the second way to find the distance asked in the question is just using theory)</em>

8 0
3 years ago
Help again I’m dumb but anyway ways please
Fiesta28 [93]
$94.40 
9.44 * 10 = 94.40
3 0
3 years ago
I want to make sure I got the right answer to this.
Nastasia [14]
Simplified would be 21/1 Would be 21
6 0
4 years ago
Read 2 more answers
paid after the grace period, on average, more than 4 times in 2018, what are the null and alternative hypotheses? Select the cor
Mila [183]

Answer:

<em>H</em>₀: <em>μ</em> = 4 vs. <em>H ₐ</em>: <em>μ </em>> 4

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 alternate hypothesis is the contradicting statement to the null hypothesis.

The alternate hypothesis describes direction of the hypothesis test, i.e. if the test is left tailed, right tailed or two tailed.

It is also known as the research hypothesis and is denoted by H ₐ.

In this case we need to test whether the amount is paid after the grace period, on average, more than 4 times in 2018.

The hypothesis can be defined as follows:

<em>H</em>₀: <em>μ</em> = 4 vs. <em>H ₐ</em>: <em>μ </em>> 4

4 0
3 years ago
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