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lesya [120]
3 years ago
12

Pouvez-vous trouvez quatre nombre entier consécutif dont la somme vaut 1254 Et merci à vous

Mathematics
1 answer:
seropon [69]3 years ago
8 0

Answer:

312.5, 313.5, 314.5, 315.5

Step-by-step explanation:

n + (n + 1) + (n +2) + (n+3) = 1254.

Solving gives, 4n + 6 = 1254.

1254/4 = 313.5 as our n.

Substituting for our n's: 313.5 + 313.5 + 1 + 313.5 + 2 313.5 + 3 =

312.5 + 313.5 + 314.5 + 315.5.

<u>Check:</u>

312.5 + 313.5 + 314.5 + 315.5 = 1254.

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The change from one number to the next in a geometric sequence is called
Dmitrij [34]

Answer:

A) or B)

Step-by-step explanation:

Im not really sure but its one of them

7 0
3 years ago
576 is what percent of 800?
aleksley [76]
72 percent.
Divide 576 into 800 to get 72%
8 0
3 years ago
Read 2 more answers
What is factorisation ​
liubo4ka [24]

Factorization is a method of writing numbers as the product of their factors or divisors.

<em><u>Solution:</u></em>

<em><u>Factorisation:</u></em>

Factorization is a method of writing numbers as the product of their factors or divisors.

In other words we can say, Finding what to multiply together to get an expression.

It is like "splitting" an expression into a multiplication of simpler expressions.

<em><u>Methods of factorisation:</u></em>

  • Factoring out the GCF
  • The sum-product pattern
  • The grouping method
  • The perfect square trinomial pattern
  • The difference of squares pattern

<em><u>Factoring out the GCF:</u></em>

This methods means that factoring out common factors

For example:

12x^2 + 3x = 3x(4x + 1)

This can be used when each term in given expression shares a common factor

<em><u>The sum-product pattern</u></em>

A quadratic equation may be expressed as a product of two binomials

For example:

x^2 + 7x + 12 = (x + 3)(x + 4)

This method can be used for quadratic equations of form ax^2 + bx + c = 0

<em><u>The grouping method</u></em>

If the polynomial is of the form  ax^2 + bx + c and there are factors of ac that add up to b , we can use this method

For example:

2x^2 + 7x + 3\\\\2x^2 + 6x + 1x + 3\\\\2x(x + 3) + 1(x + 3)\\\\(x + 3)(2x + 1)

<em><u>The perfect square trinomial pattern</u></em>

If the first and last terms are perfect squares and the middle term is twice the product of their square roots , we can use this method

For example:

x^2 + 10x + 25\\\\(x + 5)^2

<em><u>The difference of squares pattern</u></em>

If the expression represents a difference of squares, we can use this method

Because a^2 - b^2 = (a + b)(a - b)

For example:

x^2 - 25\\\\x^2 - 5^2\\\\(x + 5)(x - 5)

6 0
3 years ago
Help me quick please --4x-7-3x+4=25
V125BC [204]

Answer:

<h2><em><u>x</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>32</u></em></h2>

Step-by-step explanation:

4x - 7 - 3x + 4 =25

=> 4x - 3x = 25 + 7

=> <em><u>x = 32 (Ans)</u></em>

3 0
3 years ago
Read 2 more answers
A. 75.36 m2<br> B. 12 m3<br> C. 25.12 m3<br> D. 72 m2<br> E. 144 m2
yarga [219]
The answer to this question is E.
7 0
3 years ago
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