Answer:
n = 3
Explanation:
−5n+8=−7
Step 1: Subtract 8 from both sides.
−5n+8−8=−7−8
−5n=−15
Step 2: Divide both sides by -5.
-5n/-5 = -15/-5
n = 3
Answer:
no
Step-by-step explanation:
to be equivalent both numbers have to be multiplied pr divided by the same number.
to get to 5/8 you can multiply 4x2 but 3x2 equals 6
So to be equal it would have to be 6/8
To get to 3/12 you can multiply 4 by 3 but 3*3= 9
So to be equal it has to be 9/12
Answer:
140 deg
Step-by-step explanation:
The sum of the measures of the interior angles of an n-gon is
(n - 2)180
In a 9-gon, there are 9 sides, so n = 9.
The sum of the measures of the interior angles of a 9-gon is
(n - 2)180 =
= (9 - 2)(180)
= 7(180)
= 1260
A regular polygon has congruent interior angles. A 9-gon has 9 congruent interior angles. The measure of each interior angle is the sum of the measures of the interior angles divided by the number of angles.
1260/9 = 140
X=5.333333..... hopefully i helped
Make the equations equal and solve for x
- 2x²+6x+1=-4x²+1
- 6x²+6x=0
- 6x(x+1)=0
- 6x=0 or x+1=0
- x=0 or x=-1
For x=0
For x=-1
The solutions are
Graph attached
