Answer:
180°
Step-by-step explanation:
A "3-gon" is a triangle. The sum of the measures of its interior angles is 180°.
_____
You can make use of the formula for the sum of interior angles for an n-gon:
angle sum = 180°·(n -2) = 180°·(3 -2) = 180°
or, you can translate the exterior angles so they all have the same vertex and realize they sum to 360°. Then if the interior angles are A, B, C, you have ...
(180 -A) +(180 -B) +(180 -C) = 360
3·180 -(A +B +C) = 2·180 . . . . . collect terms
180 = A + B + C . . . . . . . . . . . . subtract 2·180 and rearrange
Answer: .375
Step-by-step explanation:
Answer:
Step-by-step explanation:
y = 4x is proportional and linear ( y = coffienient(x) )
y = -4x - 3 is not proportional because it has a costant ( -3 )
They are both an equation, they have a coffienient, and a value like (x)
Work in rates per hour. These rates can then be added to form an equation
1/13 + 1/10 = 1/x where x is the time for both working together
multiply thru by 130x:-
10 x+ 13 x = 130
x = 130/23 = 5.65 hours or about 6 hours 39 minutes
Answer:
45/126 or 5/14
Step-by-step explanation:
a / b = 5/8
b / c = 9/14
a = 5
b = 8
b = 9
8 * 9 = 72
b = 72
If b was = 8 and now = 72, multiply a by 9.
b = 45
If b was 9 and now is 72, multiply c by 9.
c = 14 * 9 = 140 - 14 = 126
b / c = 45/126 or 5/14
You are welcome!
Kayden Kohl
9th Grade Student