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ira [324]
3 years ago
11

I am so lost on this question. I’ve never heard of a matrices so I have no clue where to even start to solve this problem.

Mathematics
1 answer:
balu736 [363]3 years ago
5 0

Answer:

thas multiple matrix bro

Step-by-step explanation:

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A, B & C lie on a straight line.
Liono4ka [1.6K]

Answer:

x = 129°

Step-by-step explanation:

∠ ABD and ∠ DBC are a linear pair and sum to 180° , then

y + ∠ DBC = 180°

107° + ∠ DBC = 180° ( subtract 107° from both sides )

∠ DBC = 73°

the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles , then

x = ∠ DBC + z = 73° + 56° = 129°

8 0
2 years ago
2nd question this is still confusing even after getting the formula
Nana76 [90]
Check the picture below.

so the figure is really just 3 rectangles and two triangles.

simply get the area of all 5, sum them up, and that's the area of the figure.

recall that area of a triangle A = ½bh.

3 0
3 years ago
Hey Guys, Thank you for all your help and support. I was wondering if you could help me one last time, I'm really confused. Than
SCORPION-xisa [38]
(-2,-3) is the answer to the first part
5 0
3 years ago
When solving a system by substitution, one should
neonofarm [45]
B, because to substitute for a variable you have to have an equation to substitute first.
6 0
3 years ago
Will give brainliest to whoever answers!!!
jarptica [38.1K]

(A)

Step-by-step explanation:

All other choices will result in a negative number inside the radical sign.

4 0
3 years ago
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