Answer:
or 
Step-by-step explanation:
Given
Required
Determine the solution
We'll solve using elimination method.
Subtract the first equation from the second:
Make x the subject:
Substitute 
for x in the first equation
Make y the subject
Hence, the solution is:
or
Answer:
a) 23
Step-by-step explanation:
Answer:
Step-by-step explanation:
To do this, you must substitute 
for x in the equation g(x)
Simplified this would be
Answer:
It’s saying for every 1/4 inch, you have 3 feet. Let’s say I had an inch. That means I have 12 feet. Hope this helped!
Step-by-step explanation:
I only have an explanation. I don’t have the answer, but maybe I could help!
Answer:
f
(
x
)
=
5
x
2
−
2
x
+
3
g
(
x
)
=
4
x
2
+
7
x
−
5
f
(
g
(
x
)
)
=
5
(
4
x
2
+
7
x
−
5
)
2
−
2
(
4
x
2
+
7
x
−
5
)
+
3
=
80
x
4
+
280
x
3
+
45
x
2
−
350
x
+
125
−
8
x
2
−
14
x
+
10
+
3
=
80
x
4
+
280
x
3
+
45
x
2
−
8
x
2
−
350
x
−
14
x
+
125
+
10
+
3
f
(
g
(
x
)
)
=
80
x
4
+
280
x
3
+
37
x
2
−
364
x
+
138
The answer is
f
(
g
(
x
)
)
=
80
x
4
+
280
x
3
+
37
x
2
−
364
x
+
138
.
Step-by-step explanation:
