Answer:
The value of the variable for which the equation is true (4 in this example) is called the solution of the equation. We can determine whether or not a given ...
Step-by-step explanation:
You set both expressions equal to each other, then solve for x. Your answer will be x=12
L=7+W
area=30=LW
so subsitute 7+W for length
30=(7+W)(W)
30=W²+7W
minus 30 both sides
0=W²+7W-30
factor
what 2 numbers multiply to get -30 and add to get 7
-3 and 10
0=(W-3)(W+10)
set to zero
0=W-3
3=W
0=W+10
-10=W
false, can't have a negative width
width=3in
L=7+W
L=7+3
L=10
the length is 10in
the width is 3in
Answer: x= pi
Step-by-step explanation:
Answer:
7
<em>good luck, i hope this helps :)</em>
