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igomit [66]
3 years ago
15

1/2(4•5)-2 to the power of 3

Mathematics
1 answer:
gulaghasi [49]3 years ago
5 0
The answer is -40 because 1/2 of 4 is 2 and 1/2 of 5 is 2.5, 2•2.5=5. -2•-2•-2=-8. 5•-8=-40
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maxonik [38]

Step-by-step explanation:

The area of triangle is 

=21×height×base=21×3×4=3×2=6 cm2

6 0
2 years ago
WRITE A LINEAR EQUATION FOR THE TABLE BELOW.
nikitadnepr [17]

Answer:

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8 0
3 years ago
Please help ASAP brainliest.
lisov135 [29]

Answer:

\left[\begin{array}{cc}2&8\\5&1\end{array}\right]

Step-by-step explanation:

The <em>transpose of a matrix </em>M^T is one where you swap the column and row index for every entry of some original matrix M. Let's go through our first matrix row by row and swap the indices to construct this new matrix. Note that entries with the same index for row and column will stay fixed. Here I'll use the notation p_{i,j} and p^T_{i,j} to refer to the entry in the i-th row and the j-th column of the matrices P and P^T respectively:

p_{1,1}=p^T_{1,1}=2\\p_{1,2}=p^T_{2,1}=5\\p_{2,1}=p^T_{1,2}=8\\p_{2,2}=p^T_{2,2}=1\\

Constructing the matrix P^T from those entries gives us

P^T=\left[\begin{array}{cc}2&8\\5&1\end{array}\right]

which is option a. from the list.

Another interesting quality of the transpose is that we can geometrically represent it as a reflection over the line traced out by all of the entries where the row and column index are equal. In this example, reflecting over the line traced from 2 to 1 gives us our transpose. For another example of this, see the attached image!

7 0
3 years ago
Mahnoor randomly selects times to walk into a local restaurant and observe the type of music being played. She found that the re
max2010maxim [7]

Answer:

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pls mark brainliest

8 0
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jenyasd209 [6]
You would need to substitute a number for y. I would probably put 0 for y which would then give you x. 

y = 0

x = 1

Then you can easily graph the point. :)
7 0
3 years ago
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