Answer:
Tessa's mistake was to have multiplied each dimension by two instead of multiplying by a square root of two.
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its areas is equal to the scale factor squared
Let
z -----> the scale factor
x ----> the area of the enlarged garden
y ----> the area of the original garden
we have that
If Tessa multiplies each dimension by 2, then the scale factor equals 2.
substitute
The area of the enlarged garden will be equal 4 times the area of the original garden
so
If Tessa wanted to have twice as much surface, she must multiply each dimension by a square root of 2.
therefore
Tessa's mistake was to have multiplied each dimension by two instead of multiplying by a square root of two
3 years ago, the cost was $600.
So 5 years from now, the cost will be $600 + 8 * $150 = $1800.
Indegree-The number of inward directed graph edges from a given graph vertex in a directed
graph.
Outdegree-The number of outward directed graph edges from a given graph vertex in a directed
graph.
Answer:
Step-by-step explanation:
Data: Area of the room = 750 square feet
Width = Lenght - 5 feet
We have a rectangular room. To calculate it's area we do:
Area = Width x Length
We know that width depends on Lenght in this exercise. Replacing our data above:
750 square feet = (Length - 5 feet) x Lenght
Let's rearrange our equation. If we named Lenght = y :
Now we do one more final step to match one of the options:
If you look carefully, there are two more correct answers similar to the equation above:
