The answer is -21.4
Hope that answers your question ;)
Yes 45, 40, 30 forms a triangle because i did it on my paper
I believe the equation shown above is an example of:
B. Associative Property of Addition.
Hope I helped!!
Answer:
The area of the sector (shaded section) is 29.51
.
Step-by-step explanation:
Area of a sector = (θ ÷ 360) ![\pi](https://tex.z-dn.net/?f=%5Cpi)
![r^{2}](https://tex.z-dn.net/?f=r%5E%7B2%7D)
where θ is the central angle of the sector, and r is the radius of the circle.
From the diagram give, diameter of the circle is 26 m. So that;
r = ![\frac{diameter}{2}](https://tex.z-dn.net/?f=%5Cfrac%7Bdiameter%7D%7B2%7D)
=
= 13 m
θ = 360 - (180 + 160)
= 360 - 340
= ![20^{o}](https://tex.z-dn.net/?f=20%5E%7Bo%7D)
Thus,
area of the given sector =
x
x ![(13)^{2}](https://tex.z-dn.net/?f=%2813%29%5E%7B2%7D)
=
x x
x 169
= 29.5079
The area of the sector (shaded section) is 29.51
.
<h3>
Answer: $3.50</h3>
Work Shown:
7% = 7/100 = 0.07
7% of $50 = 0.07*50 = 3.50
Extra info: The total price including tax would be 50+3.50 = 53.50 dollars. However, it seems like your teacher is only interested in the tax only.