Answer:
-2(a+b)=-2a-2b
Equation is alway true
Rearrange:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
-2*(a+b)-(-2*a-2*b)=0
Step by step solution :
Step 1 :
Equation at the end of step 1 :
(0 - 2 • (a + b)) - (-2a - 2b) = 0
Step 2 :
Equation at the end of step 2 :
0 = 0
Step 3 :
Equations which are always true :
3.1 Solve 0 = 0This equation is a tautology (Something which is always true)
Equation is alway true
Step-by-step explanation:
Answer:
Step-by-step explanation:
5 (i) 243 ÷x = -81
243 ÷ -81 = x
x = -3
5 (j) 50 ÷ x = -50
50 ÷ -50 = x
x = -1
5(k) -92 * x = 184
x = 184 ÷ -92
x = -2
5(l) -800 ÷x = -20
-800 ÷ -20 = x
x = 40
The nearest whole number to <span>17 5/8 would be 18.</span>
Answer:
Step-by-step explanation:
From least to most likely
Honour
Simple
Bonus
The measure of each exterior angle is 60° and the polygon has 6 sides ⇒ 4th answer
Step-by-step explanation:
In a regular n-side polygon:
- All sides are equal in lengths
- All angles are equal in measure
- The measure of each interior angle =

- The measure of each exterior angle =

- The sum of interior angle and exterior angle at a vertex is 180°
∵ The measure of an interior angle of a regular polygon is 120°
∵ The sum of interior angle and exterior angle at a vertex = 180°
∴ The measure of each exterior angle = 180 - 120
∴ The measure of each exterior angle = 60°
∵ The measure of each exterior angle = 
- Substitute the measure of the exterior angle by 60
∴ 
- By using cross multiplication
∴ 60 n = 360
- Divide both sides by 60
∴ n = 6
∴ The polygon has 6 sides
The measure of each exterior angle is 60° and the polygon has 6 sides
Learn more:
You can learn more about polygons in brainly.com/question/6281564
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