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Rama09 [41]
2 years ago
13

1) Factorise 3x^2 + 5x + 2 2) Hence, solve x^2 + 5x + 2

Mathematics
1 answer:
I am Lyosha [343]2 years ago
7 0

Answer: (x+1)(3x+2) , i only got the answer for the first question, sorry!

Step-by-step explanation:

- factorise using AC method

AC= 3 x 2 = 6

find 2 numbers that add to give 5 and multiply to give 6 (3 and 2)

- put them as x in the equation to replace 5x

3x^2 + 2x + 3x + 2

- split the equation in half and expand each side

3x^2+2x | 3x+2

x(3x+2)+1(3x+2)

- put the numbers outside the brackets into a separate bracket

= (x+1)(3x+2)

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Another geometry question thanks!
Anettt [7]

For the given right triangle, we have:

  • L = 57°
  • ML = 4.5
  • NL  =  7.5
<h3>How to get the dimensions of the given triangle?</h3>

Here we have a right triangle, remember that the sum of the internal angles of a triangle must be 180°, then:

N + M + L = 180°

We can see that:

N = 37°

M = 90°

Then:

L = 180° - N - M = 180° - 37° - 90° = 53°

Also, if we step on N, the adjacent cathetus measures 6 units, then we can use the relations:

tan(37°) = (opposite cathetus)/(adjacent cathetus)

tan(37°) = ML/6

tan(37°)*6 = ML = 4.5

cos(37°) = (adjacent cathetus)/(hypotenuse)

cos(37°) = 6/NL

NL = 6/cos(37°) =  7.5

If you want to learn more about right triangles:

brainly.com/question/2217700

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4 0
2 years ago
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kolbaska11 [484]

Answer:

6q

Step-by-step explanation:

The product means the answer to a multiplication problem. That means you multiply 6 by q, which is 6*q, or 6q.

3 0
3 years ago
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Solnce55 [7]
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Answer:

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