Answer:
#1. A. C. D.
#2. D. F.
3^4 equals 81 and so do answer D. & F.
This is true because the system of equations that has solutions is called consistent.
Answer:
A. x < 3
B. X > 9
c. x < 1
d. x < -2
Step-by-step explanation:
For A. 2x+1 < 7
First, subtract 1 from both sides
Then, we will get
2x+1 -1 < 7 - 1
2x < 6
Now, divide both sides by 2
2x / 2 < 6/2
x < 3
For B. X-5 >4
Add 5 to both sides,
Then, we will get
X -5 +5 > 4 + 5
X > 9
For c. 2x+3 <5
Subtract 3 from both sides
2x +3 -3 < 5 - 3
2x < 2
Divide both sides by 2
2x / 2 < 2/2
x < 1
For d. 2x-3 x >2
First, evaluate 2x -3x
2x -3x = -x
Then, 2x-3 x >2 becomes
-x > 2
Now, divide both sides by -1
-x/-1 > 2/-1
x < -2
(NOTE: The sign changes when you divide or multiply by a negative sign)
Answer:
6
Step-by-step explanation:
2 * (729* 1/243) = 2 * 3 = 6
A triangle has 3 sides, the total interior angels sum to 180 degrees.
A square has 4 sides, the total interior angels sum to 360 degrees.
A pentagon has 5 sides, the total interior angels sum to 540 degrees.
Do you see a trend?
Answer:
The (s) sum of interior angles equals the (n) number of sides, minus 2, times 180.
This is written as
s = (n - 2) * 180
If we put in 900 for s, we get
900 = (n - 2) * 180
5 = n - 2
n = 7
A polygon with 7 sides is called a Heptagon.