If we do it algebraically, we get
x + y = 420
This is the simplest equation. You see now this is a linear pair in two variables. Thus, there will be infinitely many solutions.
E.g - 419 + 1 = 420
42 * 10 = 420
21 * 20 = 420
etc,....
Answer:
Step-by-step explanation:
19) 340-76= 264 ft
20) -320+23 = -297 F
21) 50-85-12+93 = 46 points
22) 26-5-2+1-6 = 14$
23) -3 + 18 = 15 F
Answer: The answer is NOT Letter B
C. y = 1/4x^2
Step-by-step explanation: I used math.way
A. y = x^2 = Rewrite in vertex form and use this form to find the vertex (
h
,
k
)
. (
0
,
0
) =Find the vertex form. y
=
x
2
B. y = 1/4x^2 + 1 = Rewrite in vertex form and use this form to find the vertex (
h
,
k
)
.
(
0
,
1
) =Find the vertex form. y
=
1
/4
⋅
(
x
+
0
)
2
+
1
C. y = 1/4x^2 = Rewrite in vertex form and use this form to find the vertex (
h
,
k
)
.
(
0
,
0
) =Find the vertex form. y
=
1
/4
x
2
D. y = 1/4( x - 2)^2 + 1 = Rewrite in vertex form and use this form to find the vertex (
h
,
k
)
.
(
2
,
1
) = Already in vertex form. y
=
1
/4
(
x
−
2
)
2
+
1
Answer:

Step-by-step explanation:
We want to find
given that
and
.
We substitute the functions to get:

We simplify the rational function to get:

However, this function is only defined for 
Answer:
D 192
Step-by-step explanation:
used: new: total
4: 1 : 5
We have 240 stamps
240/5 = 48
Multiply each number by 48
used: new: total
4*48: 1*48 : 5*48
192 : 48 : 240
There are 192 used stamps and 48 new stamps in his collections