Plug in the number from f(x) with the x value
For example
f(9)=(9)^2-25
81-25
F(9)=56
That’s one answer.
Hope it helps!
Answer:
-8x-8
Step-by-step explanation:
20
Triangles are 180 total so just add 118 and 22 then subtract it from 180 for your answer
Answer:
<h2>see below</h2>
Step-by-step explanation:
<h3>
Question-6:</h3>
we are given a equation

to solve so
recall logarithm multiplication law:

simplify multiplication:

remember 
so

cancel out
from both sides:

simplify squares:

move left hand side expression to right hand side and change its sign:
since we are moving left hand side expression to right hand side there'll be only 0 left in the left hand side

rewrite it to standard form i.e ax²+bx+c=0

rewrite -6x as 2x-8x:

factor out x and 8:

group:



<h3>Question-7:</h3>
move left hand side log to right hand side:

use mutilation logarithm rule;

so

cancel out log from both sides:

make it standard form:

factor:

so

Answer: Boy = 20 and Girl = 15
Explanation:
Boy = 35 x 4/7 = 20
Girl = 35 x 3/7 = 15