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Salsk061 [2.6K]
4 years ago
7

Please Assist Me With This Equation.

Mathematics
1 answer:
Marta_Voda [28]4 years ago
3 0

Answer:

A = 1.89 cm^2

Step-by-step explanation:

The base = 2.1

The height = 1.8

The formula for area of a triangle is given by

A = 1/2 b*h

A = 1/2 (2.1) * 1.8

A = 1.89 cm^2

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3 years ago
What is the value of -2xy if x = -1 and y = 6?<br><br> 12<br> -12<br> 26<br> 8
Anuta_ua [19.1K]

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3 years ago
Read 2 more answers
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
EXPONENTIAL FUNCTIONS HELP Write the function for each graph described below. the graph of f(x) = 2x reflected across the x-axis
raketka [301]

Answer:

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  • 3^(x +2) -3
  • (1/2)^x -2
  • 4^(x/3)
  • 2^(x -3) +4

Step-by-step explanation:

In general, the transformation ...

  g(x) = f(x -h) +k

translates f(x) right h units and up k units.

The transformation ...

  g(x) = f(x/a)

stretches the graph horizontally by a factor of "a".

The transformation ...

  g(x) = -f(x)

causes the graph to be reflected over the x-axis.

___

Applying the above, we have ...

f(x) = 2^x reflected over x is g(x) = -2^x

f(x) = (1/3)^x translated up 5 is g(x) = (1/3)^x +5

f(x) = 3^x translated by (-2, -3) is g(x) = 3^(x +2) -3

f(x) = (1/2)^x translated down 2 is g(x) = (1/2)^x -2

f(x) = 4^x stretched horizontally by a factor of 3 is g(x) = 4^(x/3)

f(x) = 2^x translated by (3, 4) is g(x) = 2^(x -3) +4

7 0
3 years ago
Elena rolled a number cube 50 times and recorded the results in this table
alexira [117]
The answer is D!!!! Hope this helped
3 0
4 years ago
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