The value of x according to the equation is -7/4 and the equivalent equations that Katrina might use is x - 2x - 6 = 8x + 12 - x - 4
Given the equation solved by Katrina expressed as;
- x - 2 (x + 3) = 4 (2 x + 3) - (x + 4).
Expand using distributive law;
x - 2x - 6 = 4(2x) + 4(3) - x - 4
x - 2x - 6 = 8x + 12 - x - 4
-x - 6 = 7x + 8
-x - 7x = 8 + 6
-8x = 14
x = 14/-8
x = -7/4
Hence the value of x according to the equation is -7/4 and the equivalent equations that Katrina might use is x - 2x - 6 = 8x + 12 - x - 4
Learn more on expressions here: brainly.com/question/24734894
<u>ANSWER</u>
Extraneous solution: x=6
Real solution: x=11
<u>EXPLANATION</u>
The given expression is
Add -8 to both sides:
Square both sides.
We expand the to get
Write in standard quadratic form.
Factor to get:
We check for extraneous solutions by substituting each value of x into the original equation.
When x=6
Hence x=6 is an extraneous solution.
When x=11
This statement is true.
Hence x=11 is the only solution.
1 yard=3 feet
5 yards to feet
5 yards times 3=15 feet
1 mile=5280 feet
15/5280 miles per second
1 hour=60 minutes
1 minute=60 seconds
1 hour=60 times 60 seconds=3600 seconds
1 hour=3600 seconds
divide both sides by 3600
1/3600hour=1 second
(15/5280)miles per (1/3600) hour
invert and multiply
times
=
=
=10.2273 miles per hour
Answer:
(0,2)
Step-by-step explanation:
I think this answer is right
The answer is C) 3,4,5
It is a common 3-4-5 right triangle.
According to Pythagorean theorem, a^2+b^2=c^2 so
9+16=25