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Marianna [84]
3 years ago
7

Un técnico de reparaciones de electrodomésticos cobra 25 € por la visita, más 20 € por cada hora de trabajo. A) Escribe la expre

sión algebraica (fórmula) que nos da el dinero que le tenemos que pagar en total de acuerdo con el tiempo que esté trabajando
Mathematics
1 answer:
maxonik [38]3 years ago
5 0

Answer:

x= 25+20y

Step-by-step explanation:

De acuerdo a la situación planteada, la expresión algebraica debe indicar que 25€ que es el valor por la visita más 20€ multiplicado por el número de horas trabajadas es igual al dinero total que se debe pagar. La expresión es:

x= 25+20y, donde

x= valor total a pagar

y= número de horas trabajadas

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I need help with this :-/
slega [8]

you have shown that 2 angles and the corresponding side are congruent. That is what we would write in the UK

In the US i think its ASA?

5 0
3 years ago
The probability of a certain player making a three-point shot is 1/14. What is the probability he does not make his next shot?
kari74 [83]

Answer:

13/14

Step-by-step explanation:

If the player chance of making it is 1/14 the remaining chances are the chances he will miss it.

4 0
4 years ago
Factorize x^3-10x^2-53x-42
pochemuha

Answer:

(x+1)(x-14)(x+3)

Step-by-step explanation:

The first step in factorising polynomials is to find the smallest factor first. The way to do this is with trial and error. Lets see if x+1 is a factor.

According to the factor theorem, (x-a) is a factor of P(x) if and only when P(a) = 0

In this case we will use f(x) = ((x)^3)-((10x)^2)-53x-42

f(-1) = 0

Therefore (x+1) is a factor of the polynomial.

Now we divide the polynomial with (x+1) via long division to get (x^2)-11x-42.

We now factorise (x^2)-11x-42 using whatever method you would like. I'm going to use the AC method, where we find a number that multiplies to AC and adds to B, In this case AC = -42, and B = -11.

Therefore (x^2)-11x-42 factosied is (x-14)(x+3)

Now merge (x+1) with (x-14)(x+3)

The final answer is (x+1)(x-14)(x+3)

If this has helped, please consider making this the Brainliest answer!

7 0
3 years ago
Read 2 more answers
What times what equals 12 but when you add those numbers together it equals negative 7
gtnhenbr [62]
(-3)*(-4)=12

(-3)+(-4)=-7
8 0
3 years ago
(x - 1)/(n - 1) + (2n ^ 2 * (1 - x))/(n ^ 4 - 1) = (2x - 1)/(1 - n ^ 4) - (1 - x)/(1 + n)
katrin [286]

Answer:

que mentiras eso es como de 12avo grado

5 0
3 years ago
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