Answer:
Third side = 8.34 cm
Step-by-step explanation:
Given that,
The perimeter of a triangle, P = 22 cm
One side of a triangle, b = 9 cm
The area of the triangle, A = 20.976 cm²
The formula for the area of a triangle is given by :
Perimeter = Sum of all sides
9 cm + 4.66 cm + x = 22
x = 22 - 13.66
x = 8.34 cm
So, the third side of the triangle is 8.34 cm.
Answer: 20
Step-by-step explanation:
The base square is 4 x 4, which is 16. That part is easy, but the other part needs more thinking.
We have two more visible full squares, which we can add on to our 16, putting it at 18. But that half squares, we have 4 total have squares. We know that 1/2 + 1/2 = 1
So, 1/2 + 1/2 + 1/2 + 1/2 = 2.
We eventually get 16 (original square) + 2 (two other full squares) + 2 (half squares) resutling in 20.
Answer:
Step-by-step explanation:
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(3x² + 5xy - 2y²)
3x² + 5xy - 2y² <em>(rewrite the expression) (write 5xy as a difference)</em>
3x² + 6xy - xy - 2y² <em>(factor the expression) (factor out 2x from the expression)</em>
3x x (x + 2y) -y x (x + 2y) <em>(factor the expression) (factor out x + 2y from the expression)</em>
<em>Solution</em> : (x + 2y) x (3x - y)
