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3 years ago

9

Matrixs multiplication

1 answer:

Fittoniya [83]3 years ago

8 0

Answer:

mathematics, particularly in linear algebra, matrix multiplication is a binary operation that produces a matrix from two matrices. For matrix multiplication, the number of columns in the first matrix must be equal to the number of rows in the second matrix

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Does anybody know how to do Factor with distribution property (Variables) ?

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Hope i was able to help

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3 years ago

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Por una calculadora y un cuaderno habríamos pagado, hace tres días, 10,80 €. El precio de la calcula-dora ha aumentado un 8%, y

Inessa05 [86]

Answer:

La calculadora y el cuaderno costaba 9 y 1,8 euros hace tres días.

Step-by-step explanation:

A partir del enunciado podemos construir el sistema de ecuaciones lineales:

Hace tres días:

$x+y = 10.80$ (1)

Actualmente:

$1.08\cdot x + 0.9\cdot y = 11.34$ (2)

Donde:

$x$ - Precio de la calculadora.

$y$ - Precio del cuaderno.

Por métodos algebraicos, tenemos que el sistema de ecuaciones tiene la siguiente solución:

$x = 9$ , $y = 1.8$

La calculadora y el cuaderno costaba 9 y 1,8 euros hace tres días.

4 0

3 years ago

Carmen reads 6/7 of a page in her library book in 12/5 minutes. At this rate, how many minutes does it take her to read the whol

kaheart [24]

Answer:

392 minutes

Step-by-step explanation:

She reads 6/7 of a page in 12/5 mins

She will read 1 page in (12/5)* (7/6) mins

She will read 140 pages in (12/5)*(7/6)*140 mins = 392 mins

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4 years ago

If you flip three fair coins, what is the probability that the first two flips will both be heads, and the third flip will be ei

Degger [83]

Answer:

1/4

Step-by-step explanation:

This is correct on khan academy!

6 0

4 years ago

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Which choice is equivalent to the quotient shown here for acceptable values of x?

Degger [83]

Answer: OPTION D

Step-by-step explanation:

You need to remember this property:

$\frac{\sqrt{x} }{\sqrt{y} }=\sqrt{\frac{x}{y} }$

And remember that:

$\frac{a}{a}=1$

Then, the first step is rewrite the expression:

$\frac{\sqrt{30(x-1)} }{\sqrt{5(x-1)^2}}$ $=\sqrt{\frac{30(x-1)}{5(x-1)^2}} }$

Now, to find the corresponding equivalent expression, you need to simplify the expression.

Therefore, the equivalent expression is the following:

$\sqrt{\frac{6}{(x-1)}} }$

Finally, you can observe that this matches with the option D.

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4 years ago

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