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3 years ago

Find the distance between the points (0, 0) and (6, -8). 4 √28 10

Mathematics

1 answer:

kvasek [131]3 years ago

6 0

Answer:

Step-by-step explanation:

The formula for finding the distance between 2 points (x1, y1) and (x2, y2) is

d = √[(x2 - x1)² + (y2 - y1)²]

Here (x2, y2) = (6, -8) and (x1, y1) = (0, 0)

Plugging them gives us

d = √[(6 - 0)² + (-8 - 0)²]

d = √[(6)² + (-8)²]

d = √[36 + 64]

d = √100

d = 10

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2 years ago

Find the multiplicative inverse of -2 in mod 7<br>

Elis [28]

Answer:

So something mod 7 is -2
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3 years ago

there are 60 cows in a field .some are brown and the rest are white. Two thirds of the brown cows are less than one year old. Th

DIA [1.3K]

Answer: 0.7

Step-by-step explanation:

Let the number of white cows be x

Thus, the number of brown cows be (x+12)

Hence,

x+(x+12)=60

x+x+12=60

2x+12=60

2x+12-12=60-12

2x=48

Divide both parts of the equation by 2:

x=24 white cows

x+12=36 brown cows

The number of white cows are less than one year old:

$\displaystyle\\\frac{3}{4}(24)=\\\\\frac{3(24)}{4}=\\\\ 3*6=\\\\ 18\ white\ cows$

The number of brown cows are less than one year old:

$\displaystyle\\\frac{2}{3}(36)=\\\\ \frac{2(36)}{3}=\\\\ 2*12=\\\\24 \ brown \ cows$

The total number of cows are less than one year old:

$18+24=42\ cows$

Thus

Fraction of all the cows are less than one year old:

$\displaystyle\\\frac{42}{60}=\\\\\frac{6*7}{6*10}=\\\\\frac{7}{10} =\\\\ 0.7$

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1 year ago