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4 years ago

Using the order of operations, what should be done first to evaluate 6·6 + 10 ÷ (-5) (3)-5

Mathematics

2 answers:

mihalych1998 [28]4 years ago

7 0

Multiply/Divide first (left to right)
Then add/subtract second (left to right)

bija089 [108]4 years ago

7 0

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Geometric mean for 12 and 3

Tom [10]

Hey there! :D

To find the geometric mean, you multiply the numbers and then find the square root.

12*3= 36

The square root of 36 is 6.

The geometric mean is 6.

I hope this helps!
~kaikers

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3 years ago

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What is 86% written as a fraction in simplest form

WINSTONCH [101]

86% written as a fraction is 43/50

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3 years ago

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What the answer solve for a: 9 = ca

kompoz [17]

Answer:

a = 9/c

Step-by-step explanation:

We want to isolate a. To do this, divide both sides of the given equation by c:

9 ca

---- = -----

c c

This yields

a = 9/c

8 0

3 years ago

URGENTE, POR FAVOR

Firlakuza [10]

$\mathbf A=\begin{bmatrix}a_{1,1}&a_{1,2}\\a_{2,1}&a_{2,2}\end{bmatrix}$

$a_{i,j}=2i-j\implies\mathbf A=\begin{bmatrix}2\cdot1-1&2\cdot1-2\\2\cdot2-1&2\cdot2-2\end{bmatrix}=\begin{bmatrix}1&0\\3&2\end{bmatrix}$

Por la misma razón,

$\mathbf B=\begin{bmatrix}1-1&2-1\\1-2&2-2\end{bmatrix}=\begin{bmatrix}0&1\\-1&0\end{bmatrix}$

Entonces,

$4\mathbf A=\begin{bmatrix}4\cdot1&4\cdot0\\4\cdot3&4\cdot2\end{bmatrix}=\begin{bmatrix}4&0\\12&8\end{bmatrix}$

$\mathbf A-\mathbf B=\begin{bmatrix}1&0\\3&2\end{bmatrix}-\begin{bmatrix}0&1\\-1&0\end{bmatrix}=\begin{bmatrix}1-0&0-1\\3-(-1)&2-0\end{bmatrix}=\begin{bmatrix}1&-1\\4&2\end{bmatrix}$

$\mathbf B^\top=(b_{j,i})_{2\times2}=\begin{bmatrix}b_{1,1}&b_{2,1}\\b_{1,2}&b_{2,2}\end{bmatrix}=\begin{bmatrix}0&-1\\1&0\end{bmatrix}$

Yo no reconozco la notación "Ae"... Puedes explicarla?

$a_{1,1}\cdot b_{1,1}=1\cdot0=0$

$a_{2,2}\cdot b_{1,2}=2\cdot1=2$

6 0

3 years ago

What is the solution of the system of equations? {7/2x−1/2y=9/23x−y=5 Enter your answer in the boxes. ( _ , _ )

dimulka [17.4K]

Answer:

(1, -2)

Step-by-step explanation:

I hope that helps :/

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3 years ago

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