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3 years ago

Find the distance between the points (3,8) and (-1,9)

Mathematics

1 answer:

katrin [286]3 years ago

3 0

Try this solution:

$|distance|=\sqrt{(3+1)^2+(8-9)^2}=\sqrt{17}$

PS. √17≈4.1231056256176605498214098559741.

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The sum of two numbers is 14. When one number is added to twice the other number, the result is 25. Find the numbers

ELEN [110]

Let x and y be the two numbers. We have:

$\begin{cases}x+y=14\\x+2y=25\end{cases}$

Subtract the first equation from the second to get

$y=11$

And deduce

$x+11=14 \iff x=3$

The two numbers are 3 and 11.

5 0

3 years ago

Solve for n<br><br> -19=-8+n

laila [671]

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Answer: $\textsf{n = -11}$

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Given: $\textsf{-19 = -8 + n}$

Find: $\textsf{Solve for n}$

Solution: In order to solve for n we need to add 8 to both sides which would cancel -8 on the right side and isolate n giving us the value of n.

<u>Add 8 to both sides</u>

$\textsf{-19 + 8 = -8 + 8 + n}$

$\textsf{-19 + 8 = n}$

$\textsf{-11 = n}$

Therefore, the final answer would be that n is equal to -11.

6 0

1 year ago

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On Monday, 30% of the 900 students at Maple Middle school walk to school. Complete the double numberline model. How many student

vagabundo [1.1K]

the answer is 270 (dont click ant links in this app)

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3 years ago

Sound policy requires that a certain number of trees be planted for every tree that is cut down for example of 8 trees are cut d

Nimfa-mama [501]

Answer:

30 trees

Step-by-step explanation:

Given the policy:

8 trees are cut down 48 trees will be planted

If homeowner is going to cut down five trees on his property how many trees will be planted

Since :

8 trees cut down = 48 planted

5 trees cut down = X

Cross multiply :

8 * X = 48 * 5

8X = 240

X = 240/8

X = 30

Hence, 30 trees will need to be planted

4 0

3 years ago

The constant of proportionality of chicken nuggets in relation

zhuklara [117]

I beleive that it would be C=n25

Step-by-step explanation:

I'm not sure if this is not complex enough but I'm just going by what I think this is.

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3 years ago

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