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Wittaler [7]
3 years ago
15

Find the approximate area of a triangle that has vertices at A(-4,2),B(6,4)C(3,-1)

Mathematics
1 answer:
MrMuchimi3 years ago
6 0

area \: of \: triangle \:  =  \frac{1}{2}  |( - 16) - (22)|
=  \frac{1}{2}  | - 44|
= | - 22|
area \: of \: triangle \:  = 22
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Which of the following has a specific definition in geometry?
finlep [7]

Answer:

a line

Step-by-step explanation:

In geometry, we can define a line as a straight one- dimensional figure without thickness but extends infinitely in both directions.

If we are to put it into more understandable words, we can describe a line as the shortest distance between any two points.

A line has a specific definition in geometry. Every other option listed do not have specific definition in geometry.

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3 years ago
Find the area of equilateral triangle of side 4 cm.​
ipn [44]

Answer:6.928

Step-by-step explanation: formula A=√ 3*(side^2/4)

4 0
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OAB is a sector of a circle <br>what is the area of the sector
oee [108]

Answer:

12.56 square cm

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6 0
3 years ago
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Annie has $18.00 to spend at the grocery store. She is going to buy bags of nuts that cost $5.70 each and one box of cookies tha
Tcecarenko [31]

Answer: She can buy up to 2 bags of nuts

Step-by-step explanation:

Hi, to answer this question we have to write an inequality:

The product of the number of bags of nuts bought (n) and the price per bag (5.70); plus the price of one box of cookies (4.25) must be less or equal to Annie's money (18).

5.70n +4.25 ≤18

Solving for x:

5.70n ≤18 -4.25

5.70n ≤13.75

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3 years ago
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Brilliant_brown [7]

Answer: 12

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in this case we have to use a reverse pythagorean theorem

the original one is a^ + b^ = c^ then reverse it to get c^ - a ^ = b^

we know that C is 15 and A is 9 so substitute

15^ - 9^ = b^

15 ^ = 225 and 9^ = 81 so substitute again

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144 = b^  you know that the square root of 144 is 12 because 12 x 12 = 144

so 12 is the last side

hope this helps mark me brainliest if it did

4 0
3 years ago
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