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fiasKO [112]
3 years ago
10

How do you find the distance in between two points on a graph?

Mathematics
1 answer:
Andrej [43]3 years ago
6 0

Answer:

You need to use the distance formula

which is: d=√((x_2-x_1)²+(y_2-y_1)²)

Step-by-step explanation:

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A bag contains 7 red marbles, 8 blue marbles and 4 green marbles. If three marbles
dybincka [34]

Answer:

Step-by-step explanation:

A bag contains 8 red marbles, 3 blue marbles and 7 green marbles.

Total = 18 marbles.

Probability of drawing three red marbles = probability of drawing one red without replacement + probab of drawing another without reeplacement + probab of drawing a third without replacement.

Probability of drawing three red marbles = 8/18 + 7/17 + 6/16 = 0.4444 + 0.4118 + 0.3750 = 1.2312.

6 0
3 years ago
20 is what percent of 50?
djverab [1.8K]
We can rephrase the question as "What percent of 50 is 20?".
"What percent ..." is an unknown. We'll use the variable x to represent this unknown.

The word 'of' in mathematics can mean 'multiply'. Likewise the word 'is' can mean 'equal'.

Now we have the phrase "20 equals to x times 50".

Or in an equation: 20 = x * 50

Solve for x.

20 = x * 50
\frac{20}{50} = x <-- Divide both sides by 50

Simplify the fraction.

\frac{20}{50} = \frac{2}{5}

Convert the fraction into a decimal.

\frac{2}{5} = 0.4

Convert the decimal into a percent.

0.4 = 40%

So, 40% is the answer.
3 0
4 years ago
Convert the following fraction into its decimal equivalent: 3/8
dedylja [7]
3/8 

Just divide to find the equal decimal. 

3/8 = 0.375

Answer: 0.375  <span>✌️</span>
6 0
3 years ago
Read 2 more answers
a rectangle has a length that is 4 times longer than it's width. If the total area of the rectangle is 121 square feet, what is
larisa86 [58]

Answer:

L = 22 ft

Step-by-step explanation:

Let L and W represent the length and width respectively.

L = 4W, or W = L/4.  Use W = L/4 because we want to solve for W, not for L.

Area of a rectangle:  A = L · W

Here,                          A =  L · L/4 = 121 ft²

Mult. both terms by 4 removes the fraction:

                                         L² = 484

Finding the square root of this result:  L = 22

The length of the rect. is 22 ft.

5 0
3 years ago
Read 2 more answers
What minus 12 equals 26
zepelin [54]

Answer:

14

Step-by-step explanation:

Let x represent the difference between 12 and 26

12+x=26

-12     -12       (subtract 12 from each side)

   x=14

6 0
3 years ago
Read 2 more answers
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