The answer is standard form is 3,300,200
The area of a shape is the amount of space it can occupy.
<em>The number of isosceles triangle in the grid is: </em>
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The dimension of the grid is given as:

Calculate the area


The area of each isosceles triangle is given as:

The number (n) of the triangle in an x-by-x grid is:

So, we have:

Express as products


Hence, the number of isosceles triangle in the grid is: 
Read more about areas at:
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Mark is 20. 55 - 15 = 40, 40 / 2 = 20. Mark is 20
Answer:
- Q6. x = 17
- Q8. Yes, parallel
- Q9. No, not parallel
Step-by-step explanation:
Q6. Solve for x
<u>Use ratios of similar sides</u>
- 28/(82 - 28) = (2x + 8)/(5x - 4)
- 28/54 = (2x + 8)/(5x - 4)
- 14/27 = (2x + 8)/(5x - 4)
- 14(5x - 4) = 27(2x + 8)
- 70x - 56 = 54x + 216
- 70x - 54x = 56 + 216
- 16x = 272
- x = 272/16
- x = 17
Q8
If ratios are same, the lines are parallel
- 41.8/33 = (102 - 45)/45
- 41.8/33 = 57/45
- 41.8*45 = 33*57
- 1881 = 1881
Yes, lines are parallel
Q9
Incorrect, lines are not parallel
Find the domain by finding where the expression is defined.
Inveral Notation: [3,6) ∪ (6, ∞)
Set Builder Notation:{x|x ≥3,x ≠6}