The size of the third angle is 65°.
All interior angles in a triangle must equal to 180°.
So, if 1st and 2nd angle is 115°, then, the 3rd angle would be equal to the difference of 180° and 115°.
3rd angle = 180° - 115° = 65°
Answer:
140kilo in 1hr and 280kilo in 2hr and 420kilo in 3hr and 28kilo in 20 min.
Formula for circumference: C = 2pi*r
This becomes 201 cm = 2(3.14) r
Divide both sides of this eqn by 6.28:
201
------- = r = 32 cm (approx).
6.28
5(p+5) + 6(p+6)
First step: Distribute (PEMDAS --> Parenthesis)
5p + 25 + 6p + 36 Now, combine like terms
11p + 61
Thus, the answer is 11p + 61
The function of the trapezoid area is:
A(x)=(B+b)*h/2
Where B and b are the bases and h is the height.
With the given data: h=10 B and b =7 and x (it may vary which one is bigger)
-----------
So that function becomes:
A(x)=(7+x)*10/2
A(x)=(7+x)*5
----------
So if you want the inverse function, you have to operate to find x:
A(x)/5=7+x
A(x)/5-7=x
----------
So the new function is:
x(A)=A/5-7
