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serious [3.7K]
3 years ago
9

What is the area of the triangle?

Mathematics
1 answer:
elixir [45]3 years ago
3 0
Area are all sides multiplied the formula can be found online
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Area of the triangle defined by the coordinates (-3, -4), (-7, 0), and (-3, 4).
qwelly [4]
Here: (Aₓ, Ay) = (-3,-4), (Bₓ, By) = (-7,0), (Cₓ, Cy) = (-3, 4)
Now, Formula of area of triangle is:

area = [Aₓ(By - Cy) + Bₓ(Cy - Ay) + Cₓ(Ay - By)] / 2

Substitute the values in to the expression, 
area = [-3(0-4) - 7(-4-(-4)) - 3(-4-0)] / 2
area = [-3(-4) -7(0) -3(-4)] / 2
area = [12-0+12] / 2
area = 24 / 2
area = 12

Final answer would be 12 units.

Hope this helps!
5 0
3 years ago
When graphing a linear inequality, when can you NOT use (0, 0) as a test point to determine which side of a boundary line to sha
TEA [102]
When the point (0,0) is on the boundary line
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Can somebody solve this math answer please!
mixas84 [53]

Answer:

23 (:

Step-by-step explanation:

6 0
3 years ago
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Which is not equivalent 1/5 7/35 6/25
Reptile [31]
Find a common denominator...

1/5 = 7/35
7/35 = 7/35
6/25 = ... can't have 35 as a denominator. Not equivalent.
4 0
2 years ago
a plane ticket cost b dollars for an adult ticket and k dollars for a child. Find an expression that represents the total cost f
PilotLPTM [1.2K]
Let C be the total cost. Then the required expression is:

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