Answer:
w = 2, z = 7
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask ;)
The tile along the edge of a triangular community pool needs to be replaced.
2 answers:
Answer:
Step-by-step explanation:
We are given that
Perpendicular length side of triangle =
Base of triangle=
Hypotenuse of right triangle =
We have to find the expression which represents the total perimeter of the pool edge.
We know that
Perimeter of triangle=Sum of three sides of triangle
Substitute the values then we get
Perimeter of right triangular pool edge=
Combine like terms
Perimeter of right triangular pool edge=
Hence, the perimeter of the pool edge is given by
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<h3>Answer:</h3>
- left picture (bottom expression): -cot(x)
- right picture (top expression): tan(x)
A graphing calculator can show you a graph of each expression, which you can compare to the offered choices.
_____
You can make use of the relations ...
... sin(a)+sin(b) = 2sin((a+b)/2)cos((a-b)/2)
... cos(a)+cos(b) = 2cos((a+b)/2)cos((a-b)/2)
... cos(a)-cos(b) = -2sin((a+b)/2)sin((a-b)/2)
Then you have ...
and ...