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3 years ago

Do the points P (-1, 6), Q (3, 7) and R (3, -5) form a right triangle? ( show your work )

1 answer:

5 0

Step-by-step explanation:

best I could, hopefully this helps

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mylen [45]

Answer:

10x-2x-4=8x-4 اتمنى لك التوفيق

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3 years ago

romanna [79]

Answer: 4

Step-by-step explanation:

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2 years ago

balandron [24]

Answer:

The first step is to determine the average

$x= \frac{0,6+0,7+ 0,7+0,3+0,4+ 0,5+ 0,4 +0,2}{8}\\\ x= 0,475$

The exercise says it’s a normal distribution: (n=8)

$s^{2}= \frac{1}{n-1} ((0,6.x)^2+2(0,7-x)^2+(0.3-x)^2+2(0.4-x)^2+(0.5-x)^2+(0.2-x)^2)\\\ \frac{1}{7}*0,235 = 0,0336 \\\\ s= 0183$

According to the exercise, the mean is equal to 0,5 then the value of t of the distribution can be obtained

$t= \frac{x-u}{\frac{s}{\sqrt{n} }}\\\ t= \frac{0,475 - 0,5}{0,183}\\\ t= -0,3860$

The variable t has 7 grade to liberty, we calculate the p-value as:

$2* P(t < - 0,3860)= \\\ 2* 0,3554 = 0,7108$

This value is very high, therefore the hypothesis is not rejected

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3 years ago

yuradex [85]

Answer:

Step-by-step explanation:

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3 years ago

slavikrds [6]

The answer is 64x^2+114x+81. Hope this helps.

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3 years ago