Answer:
See below.
Step-by-step explanation:
The sum of the measures of the interior angles of an n-sided polygon is
(n - 2)180
A pentagon has 5 sides, so for a pentagon, n = 5.
(n - 2)180 = (5 - 2)180 = 3(180) = 540
The sum of the measures of the angles of a pentagon is 540.
You don't show the measures of the 4 angles that are known, so to answer the question, add the 4 given measures and subtract the sum from 540.
Answer:
Positive
Step-by-step explanation:
Two positive integers multiplied will always be positive.
Answer:
<em>20</em>
Step-by-step explanation:
(2x)° + (2x)° + (6x - 20)° = 180°
10x = 200
x = <em>20</em>
Answer:
The solution is (-1/2, 3 1/2), or (-0.5, 3.5)
Step-by-step explanation:
Seeing that -x + 3 = y (in the second equation), substitute -x + 3 for y in the first equation, obtaining:
-x + 3 = 3x + 5
Combining the x terms, we get
3 = 4x + 5
Combining the constants, we get
4x = -2, or x = -1/2
Seeing that -x + 3 = y, substitute -1/2 for x and calculate y:
-(-1/2) + 3 = y = 3 1/2
The solution is (-1/2, 3 1/2), or (-0.5, 3.5)
Answer:
what happened what is the question