Answer:
Step-by-step explanation:
<em>Refer to picture</em>
Added angles a and b as interior angles of same triangle with angle x to make solving simple.
Angle a is same as 42° since both angles intercept same arc AB.
Angle b is supplementary with 64° angle as linear pair
Some of the interior angles of a triangle is 180
- x + 42° + 116° = 180°
- x + 158° = 180°
- x = 180° - 158°
- x = 22°
Answer:
5(x+4)(x+8)
Step-by-step explanation:
5x^2+60x+160
factor out the 5 first,
5(x^2+12x+32),
then factor out the trinomial,
find 2 numbers that when they multiply,
you get the third term, which is 32 in this case,
and when they add up,
you get the second term, which is 12 in this case.
5(x+4)(x+8)
Answer:
an = -3 · an - 1 where a1 = -1.
Step-by-step explanation:
The first term a1 = -1 and the common ratio is -3 so ecah term is formed form the previous one by multiplying by -3.
Step-by-step explanation:
∠4 = ∠1 & ∠2 = ∠3
360 - 2(98) = ∠2 + ∠3
∠3 = 164/2
∠3 = 82°
