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Anna007 [38]
3 years ago
6

The area of a shape is 100cm2 what is the area if the shape is dialated with a scale factor of 1/5

Mathematics
1 answer:
Sveta_85 [38]3 years ago
8 0

Answer:

20cm squared

Step-by-step explanation:

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Find the constant of variation (k) for the inverse variation. Then write an equation for the inverse situation.
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y = k/x

5 =k/7.5

k = 7.5/*5= 37.5

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3 years ago
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A= [2, 3; 2, 1], B=[3; 5]. Find AB & BA if possible
oksano4ka [1.4K]

Answer:

The value of AB is \left[\begin{array}{ccc}21\\11\end{array}\right] and it's not possible to multiply BA.

Step-by-step explanation:

Consider the provided matrices.

A=\left[\begin{array}{ccc}2&3\\2&1\end{array}\right], B=\left[\begin{array}{ccc}3\\5\end{array}\right]

Two matrices can be multiplied if and only if first matrix has an order m × n and second matrix has an order n × v.

Multiply AB

Matrix A has order 2 × 2  and matrix B has order 2 × 1. So according to rule we can multiply both the matrix as shown:

AB=\left[\begin{array}{ccc}2&3\\2&1\end{array}\right] \left[\begin{array}{ccc}3\\5\end{array}\right]

AB=\left[\begin{array}{ccc}2\times 3+3\times 5\\2\times 3+1\times 5\end{array}\right]

AB=\left[\begin{array}{ccc}6+15\\6+5\end{array}\right]

AB=\left[\begin{array}{ccc}21\\11\end{array}\right]

Hence, the value of AB is \left[\begin{array}{ccc}21\\11\end{array}\right]

Now calculate the value of BA as shown:

Multiply BA

Matrix B has order 2 × 1  and matrix A has order 2 × 2. So according to rule we cannot multiply both the matrix.

We can multiply two matrix if first matrix has an order m × n and second matrix has an order n × v.

That means number of column of first matrix should be equal to the number of rows of second matrix.

Hence, it's not possible to multiply BA.

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You recorded the actual expenses you incurred for a previous month in the above table. Determine your monthly budget based on th
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Answer:

d.

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Step-by-step explanation:

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PLEASE HELP ASAP
dezoksy [38]

Answer:

Round 1.9 to 2 cm and multiply by 18.

Step-by-step explanation:

Round 1.9 to 2 cm and multiply by 18. then you will get your answer

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3 years ago
The first 6 nonzero multiples of 5
Vikentia [17]
<span>5: 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75.... </span>
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