X=7
Pls mark me brainliest
Answer:
Solution given:

now
f(x)+g(x)=
....(1)
now
factoring x²+6x-40
we get
x²+10x-4x-40
x(x+10)-4(x+10)
(x+10)(x-4)
now substituting in equation 1 ,we get
f(x)+g(x)=
taking l.c.m
=
=now
opening bracket

=
So
answer is :
B. 
Answer:
just add the area of the triangle(formula 1/2bh) and the area of the square(formula bh)
so 1/2(6*height)+8*7
Step-by-step explanation:
It rotates 0.25 degrees in 1 minute
499 = 500 - 1
(500-1)(5) = 2500 -5 = 2495