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2 years ago

Given the sizes of the angles as specified in the picture, how large is angle 1?

Mathematics

2 answers:

Dvinal [7]2 years ago

6 0

100 because opposite angles are equal. The angles in the triangle above add up to 80 so the last angle must equal 100. Since angle 1 is directly opposite to that angle, it also equals 100.

mafiozo [28]2 years ago

3 0

Answer:100 because all triangles add up to 180 degrees

Step-by-step explanation:

50+30=80

180-80=100

Answer-100

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Answer:

$a_1=4\\\\a_2=0\\\\a_3=3$

Explanation:

The equation is:

$a_n=3a_{n-1}-5a_{n-2}-4a_{n-3}$

and

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1. Subsittute n = 6 into the equation:

$a_6=3a_{5}-5a_{4}-4a_{3}$

Now subsititute the known values:

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2. Substitute n = 5 into the equation:

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Substitute the known values and solve for $a_2$

$-36=3(-7)-5(3)-4a_{2}\\\\4a_2=-21-15+36=0\\\\a_2=0$

3. Substitute n = 4 into the equation, subsitute the known values and solve for $a_1$

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