Answer:
Part 1) The length of the terrace is 15 feet
Part 2) The width of the terrace is 6 feet
Part 3) The area of the terrace is 90 square feet
Step-by-step explanation:
<u><em>The picture of the question in the attached figure </em></u>
we know that
The scale of the plan is 
step 1
Find the length of the terrace
we know that
The length of a terrace in the plan is equal to 5 inches
so
by proportion
Find the length of the terrace in the actual

step 2
Find the width of the terrace
we know that
The width of a terrace in the plan is equal to
so
by proportion
Find the width of the terrace in the actual

step 3
Find the area of a terrace
we know that
The area of a terrace is equal to

we have

substitute

We will use the angle bisector theorem here for
. ED being the angle bisector.
Thus, from the diagram we will have:

We will now plug in the values given in the diagram.




The height of the rock will be 477 feet after two seconds
Answer:
x=2
Step-by-step explanation:
Vertical lines have the same x value all the time. It is of the form x=
Their slope is undefined
The line passes through the point (2,4) and the x value is 2
x=2
Answer:
<u>System of equations</u>


--- solution
See attachment for graph
Step-by-step explanation:
Solving (a): Linear equations with 1 solution
The only condition to this is that, the system must have 1 solution.
Other than that, there is no other condition.
A linear equation is represented as:

For the equation to have 1 solution;

And example of such equation is:


Solving (b): The graph
See attachment for graph
The solution is the point of intersection of both lines of the graph. So, we have:
