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Bumek [7]
3 years ago
7

What is the answer to 2(r+y)

Mathematics
2 answers:
katrin [286]3 years ago
8 0

Answer: 2r + 2y

Step-by-step explanation:

AveGali [126]3 years ago
3 0
The answer: 2r + 2y

Why: distributing
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3 ( y+2 ) = 2 ( y+4 )
Anestetic [448]

Answer:

√x+5=6

2+|3x|=2+3

x/3=2

Step-by-step explanation:

6 0
3 years ago
Tony had a certain number of stamps that were each worth $0.15. he misplaced 7 stamps. he found that the total value of his stam
patriot [66]
( 5.55 / .15 ) + 7 x .15 = s
6 0
3 years ago
The high temperature on Friday was 8 degrees above zero. The low temperature was 3 degrees below zero. Which expression gives th
olga_2 [115]

Using the mean concept, the expression that gives the average of the low and high temperatures is:

(-3 + 8)/2.

<h3>What is the mean?</h3>

The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.

In this problem, the two observations are -3 and 8, hence their average is given by:

(-3 + 8)/2.

More can be learned about the mean concept at brainly.com/question/25122507

#SPJ1

4 0
2 years ago
Halle la ecuación del eje x y la ecuación del eje y, usando dos puntos que se encuentren sobre los mismos.
lisov135 [29]

Una linea recta ( cualquier eje coordenado es una línea recta) queda definida si se conocen dos puntos que están sobre ella.

Solución:

Ecuación del eje x      y = 0

Ecuación del eje y      x = 0

Para darle respuesta a la pregunta podemos seguir el siguiente procedimiento:

  • Escogemos dos puntos arbitrarios sobre el eje x, por ejemplo

P ( 2 ; 0 )  y Q ( 5 ; 0 )         ( todos los puntos sobre el eje x tienen coordenada y = 0.

Según la cual  m = (y₂ - y₁)/ ( x₂ - x₁ )    m = 0

  • Usamos la ecuación pendiente-Intercepto

y = m×x + b         donde m es la pendiente y b el intercepto con el eje y

y entonces tenemos:

  • m = 0    b ( 0 ; 0 )
  • Por sustitución en la ecuación pendiente-intercepto

y = 0

Procediendo de forma similar obtendremos la ecuación del eje y

P´( 0 ; 4 )     Q´( 0 : 8 ) entonces

y = m×x + b

En este caso, la pendiente no es definida ( tang 90° ) y b es de nuevo el punto b ( 0 ; 0).

A partir de  que todos y cada uno de los puntos sobre el eje y son  de valor 0 para x, concluímos que  ecuación del eje y es

x = 0

Enlaces de interés:brainly.com/question/21135669?

8 0
2 years ago
Need help, I cant simplify this
Kisachek [45]

Answer:

7^{\frac{2}{5}}

Step-by-step explanation:

Step 1: First apply radical rule in the given expression.

\sqrt[n]{a}=a^{\frac{1}{n}}

Here, \sqrt[3]{7}=7^{\frac{1}{3}}, \sqrt[5]{7}=7^{\frac{1}{5}}

The expression becomes \frac{\sqrt[3]{7}}{\sqrt[5]{7}}=\frac{7^{\frac{1}{3}}}{7^{\frac{1}{5}}}  

Step 2: Now, apply exponent rule in the above expression

\frac{x^{m}}{x^{n}}=x^{m-n}  

So, the expression becomes, 7^{\left(\frac{1}{3}-\frac{1}{5}\right)}.

Step 3: Take cross multiply the denominator and numerator of the fraction in the power of 7.

\Rightarrow 7^{\left(\frac{1}{3}-\frac{1}{5}\right)}=7^{\left(\frac{5-3}{15}\right)}=7^{\frac{2}{5}}

The answer is 7^{\frac{2}{5}}.

Hence the simplified form of \frac{\sqrt[3]{7}}{\sqrt[5]{7}}=7^{\frac{2}{5}}.

3 0
3 years ago
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