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Harlamova29_29 [7]
3 years ago
9

Asia have cooked 7 kg of mashed potatoes for A dinner party it’s a gues A dinner party if the guest only ate 3/4 of them out he

cooked how much did they eat
Mathematics
1 answer:
andre [41]3 years ago
7 0

Answer:

5.25

Step-by-step explanation:


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Irrational numbers are _____ integers.<br><br> always<br> sometimes<br> never
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Never

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Am I right or wrong can you let me know so i can know if im doing it the right way
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Find all the real square roots of -196.
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Make greatest and smallest possible 7- digit number from 4,7,1,9,0,6,7​
Xelga [282]

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greatest 9776410 smallest 1046779

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Find the perimeter of the triangle with vertices ​A(negative 2​,2​,3​), ​B(4​,negative 4​,3​), and ​C(7​,6​,4​).
gayaneshka [121]

Answer:

P\approx 28.872\,\text{units}

Step-by-step explanation:

We are given coordinates of each of the vertices of the triangle ABC, hence we can use the distance formula to find the lengths of each of the side.

the distance formula is generally written as:

r = \sqrt{(x_1-x_2)^2+(y_1-y_2)^2+(z_1-z_2)^2}

for the side AB: A(-2,2,3) and B(4,-4,3)

AB = \sqrt{(-2-4)^2+(2-(-4))^2+(3-3)^2}

AB = \sqrt{(-6)^2+(6)^2+(3-3)^2}

AB = \sqrt{72}

for the side BC: B(4,-4,3) and C(7,6,4)

BC = \sqrt{(4-7)^2+((-4)-6)^2+(3-4)^2}

BC = \sqrt{110}

for the side CA: C(7,6,4) and A(-2,2,3)

CA = \sqrt{(7-(-2))^2+(6-2)^2+(4-3)^2}

CA = \sqrt{98}

Now we all the sidelengths:

to find the perimeter we need to just sum the three side lengths:

P = AB + BC + CA

P = \sqrt{72} + \sqrt{110} + \sqrt{98}

P\approx 28.872\,\text{units}

this is the perimeter of triangle ABC

6 0
3 years ago
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