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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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Alex sold 330 candy bars, milk chocolate candy bars sold for $2 each and white chocolate candy bars sold for $3 each. Alex sold
Alinara [238K]

Answer:

<em>Alex sold 330 white chocolate bars</em>

Step-by-step explanation:

let the milk chocolate candy be x and the white chocolate candy be y. then

then 2x+3y=990----1)

x+y=330-----2)

from eq 2) ⇒ x=330-y---------3)

Putting eq 3 in eq 1

2(330-y) +3y=990

660-2y+3y=990

y=990-660=330-----------4)

Putting eq4 in eq1

2x+3(330)=990

2x+990=990

2x=990-990

2x=0

x=0---------------------------5)

4 0
3 years ago
Write and solve an equation to find the number n. The difference of three times a number and 4 is -19.
Law Incorporation [45]

Answer:

-5

Step-by-step explanation:

Let n be the unknown number

difference is subtraction

3n -4 = -19

Add 4 to each side

3n-4+4 = -19+4

3n = -15

Divide by 3

3n/3 = -15/3

n = -5

4 0
3 years ago
Brainlist if u get it right please help
Katarina [22]

Answer:

9 units right and 7 units up! You can check!!! D!

Step-by-step explanation:

Brainliest???

8 0
3 years ago
What is the answer to ms+mq=x ?
anyanavicka [17]
This is what i got when i worked it out

8 0
3 years ago
Here are three problems. Select all problems that can be solved using division. Jada cut 4 pieces of ribbon that were equal in l
Ivenika [448]

Answer:

A and C

Step-by-step explanation:

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