Amelie found the solutions of the equation x2 − 1x = 42 to be 6 and −7. Explain why this answer is incorrect. Then, find the cor
1 answer:
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Answer:
2 units tall by 1 unit wide
Step-by-step explanation:
On the given rectangle it tell you the conversion to m is 1 unit = 2 m.
The new figure that needs to be drawn has a conversion of 1 unit = 8m.
So, the fist thing we need to do is calculate the m on the width at the height of the original, which is 16 by 8.
looking at this we can now convert this measurement into our new conversion of 1 unit = 8 m. We can do this by dividing the height and width separately.
Ex:
Since 16 is divided by 8 two times so that gives us the answer of 2 units.
8 is divisible by 8 one time so that gives us the width of 1 unit
if this is confusing just think of it like: x= for the height or x =
for the width.
Answer:
Following system of equations have exactly one solution:
Step-by-step explanation:
Given 4 system of equations:
1st
2nd
3rd
4th
To find: Which system of equations has only one solution?
Solution:
First of all, let us learn the concept.
Let the equation of lines be:
and
1. No solution:
There exists no solution if:
2. Infinite solutions:
There exist infinitely many solutions if:
3. One solution:
There exists one solution if:
Now, let us consider the given equations one by one.
1st system of equations:
The ratio is:
So, no solution.
2nd system of equations:
The ratio:
So, infinitely many solutions.
3rd system of equations:
So, no solution.
4th system of equations:
Hence, <em>only one solution.</em>
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<em>So, the answer is:</em>
Following system of equations have only one solution: