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Anna11 [10]
2 years ago
6

The lengths, in cm, of the sides of a triangle are 3x – 5, 2x – 1 and x + 1 (a) Write down an expression, in terms of x, for the

perimeter of the triangle.
Mathematics
1 answer:
lys-0071 [83]2 years ago
7 0

Answer: 6x-5

Step-by-step explanation:

Given

The side lengths of a triangle are  3x-5, 2x-1,\text{and}\ x+1

Perimeter(P) is the sum of the side length of the triangle i.e.

\Rightarrow P=3x-5+2x-1+x+1\\\Rightarrow P=6x-5

Therefore, the perimeter of the triangle is 6x-5

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3 years ago
Expand and simplify (x + 11)(x + 11)
labwork [276]

Answer:

Expand: x² + 11x + 11x + 121

Simplify: x² + 22x + 121

Step-by-step explanation:

To expand this, you can use the FOIL technique:

First terms

Outer terms

Inner terms

Last terms

(x+11)(x+11)

F - x*x = x²

O - x*11 = 11x

I - 11*x = 11x

L - 11*11 = 121

Put these numbers together (expanded) to get:

x² + 11x + 11x + 121

Put the common terms together (simplify) to get:

x² + 22x + 121

Note:

Not sure if you need this info, but (x + 11)(x + 11) is the same as (x + 11)².

The numbers need to be in the order I put them in because you are supposed to place them in order greatest to least degree.

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6 0
3 years ago
james borrows Php 700000 and promises to pay the principal and interest at 15% compounded monthly. How much must he repay after
Licemer1 [7]

Answer:

A = $ 1,987,379.10 + 700,000= $2,687,379.10

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