Answer:
x=4 y=4
Step-by-step explanation:
A_{5} = a_{1} + 4d = -5 + 4 x 6 = 19
(x-5)(4x+1)
4x^2 times -5 is -20 the factors of -20 are -1x20, 1x-20... but to make the -19x you would add together the 1 and -20 because 1-20 is -19.
This then splits off to factorise 4x^2-20x, making this side 4x(1x-5) carry the brackets over to make it 1(1x-5) joining the brackets together to make (4x+1)(x-5)
Last one :) djsjsjdndnwjdjnd
The answer is 47 degrees because the 47 angle and the b angle are opposite angles. This means they are EQUAL to each other.