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Mila [183]
3 years ago
14

What is the value of t?

Mathematics
1 answer:
pentagon [3]3 years ago
7 0

Answer:

Step-by-step explanation:

The whole angle = 68 degrees.

The bottom part = 26 degrees.

The whole angle = t + 26 = 68

t + 26 = 68                                Subtract 26 from both sides.

<u>  - 26    -26</u>

t = 42

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What is the sum of the matrices shown below?
damaskus [11]

Answer:

\left[\begin{array}{cc}3&9\\5&-2\end{array}\right] +\left[\begin{array}{cc}6&0\\-8&4\end{array}\right]=\left[\begin{array}{cc}9&9\\-3&2\end{array}\right]

Step-by-step explanation:

To add matrices, we add the corresponding components.

The given matrices is

\left[\begin{array}{cc}3&9\\5&-2\end{array}\right] +\left[\begin{array}{cc}6&0\\-8&4\end{array}\right]

We add the corresponding components to get;

\left[\begin{array}{cc}3&9\\5&-2\end{array}\right] +\left[\begin{array}{cc}6&0\\-8&4\end{array}\right]=\left[\begin{array}{cc}3+6&9+0\\5+-8&-2+4\end{array}\right]

We simplify to get:

\left[\begin{array}{cc}3&9\\5&-2\end{array}\right] +\left[\begin{array}{cc}6&0\\-8&4\end{array}\right]=\left[\begin{array}{cc}9&9\\-3&2\end{array}\right]

5 0
3 years ago
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A/ How many hours does it take to fill the pool?
masya89 [10]
Sorry my bad, i m not good in maths.
5 0
3 years ago
Si un triángulo tiene una hipotenusa de 15 cm y un cateto que mide 12 cm, ¿cual es la longitud del otro cateto?
BartSMP [9]

Answer:

   

9cm

Explicación:

El teorema de pitagoras nos dice que la hipotenusa al cuadrado es igual a la suma de los catetos al cuadrado:

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Por lo cual, podemos reemplazar c por 15cm y a por 12cm :

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Finalmente , debemos resolver la ecuación para b, así que b es igual a :

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3 0
2 years ago
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vampirchik [111]
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