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-Dominant- [34]
3 years ago
8

What is the area of a triangle with the coordinates (-4,14) (10,0) (-14,-10)

Mathematics
1 answer:
allsm [11]3 years ago
3 0
You can use Heron Formula in the calculator to output the result, but i still show you the steps on paper thro

lengths of the 3 lines:  \sqrt{392} ,  \sqrt{676} ,  \sqrt{676} 

s= (\sqrt{392} + \sqrt{676} + \sqrt{676})/2=35.89949494

area= \sqrt{s(s- \sqrt{392} )(s- \sqrt{676})^2 } =238
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The Decimal System Uses 10 Symbols To Represent Numbers True or false​
lutik1710 [3]

Answer:

For non-negative integers yes, it's 10 symbols.

Step-by-step explanation:

The symbols are the digits! 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9.

Please note, that to represent negative numbers we use an additional symbol - and a . for fractions. I'm pretty sure the question is about the basics of the decimal system and the ten digits though.

7 0
2 years ago
Solve
victus00 [196]

Answer:

x=14 , y = 21

Step-by-step explanation:

y=x-7...............1

5x+2y=7......2

reset eqn .....2

2y=-5x+7

so; y=-x-7 ×5

2y=-5x+7 ×1

5y = -5x -35

2y = -5x +7

5y-2y = -5 + 5 -35-7

<u>3y</u> = - <u>42</u>

3 3

y = 14

sub y=14 into eqn ...........1

y = -x -7

14 = - x -7

14 +7 = - x

-21 = x

x = 14 , y =-21

3 0
2 years ago
There are 8 boys in a class of 15 students. (a) what is the ratio of boys to girls? (b) whatis the ratio of all students in clas
Kisachek [45]
8/15 and all students to girl is 8+15 so 23/15
6 0
3 years ago
Read 2 more answers
The segments in each figure are tangent to the circle. Find each length.
zubka84 [21]
The tangents are equal length, so
.. 8x = x^2
We presume their length is not zero, so we can divide by x to get
.. 8 = 2x
.. 4 = x

Then the length of each tangent is 8*4 = 32 units.
3 0
3 years ago
Solve for m GHI if m GHJ = 59° and m JHI = 39º.
Setler79 [48]

Answer:

m GHI = 82°

Step-by-step explanation:

59+39=98

180-98=82 <==== answer

180 is the total amount of degree

7 0
2 years ago
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