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3 years ago

Find the area_______

Mathematics

1 answer:

Ray Of Light [21]3 years ago

6 0

Answer:

32√3

Step-by-step explanation:

area = product of diagonals/2

= (8√3 × 8)/2

= 64√3 /2

= 32√3

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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.

5 0

3 years ago

Graph the exponential model y=3(6)^x Which point lies on the graph? (-9 2) (-1, -18) (1, 18) (2, 9)

svetlana [45]

Answer:

(1,18)

Step-by-step explanation:

use a graphing calculator to graph the function

then, graph all the coordinates given and find on that's on the graph

7 0

3 years ago

Paige bought 6 bags of candy for Halloween. On Halloween 80 children visited her home and she gave each child 3 pieces of candy.

Oliga [24]

80 x 3 = 240
240 / 5 = 48
There are 48 pieces of candy in one bag.

<span>Hope This Helps You!
Good Luck Studying :)</span>

3 0

3 years ago

Read 2 more answers

Is 1/4 greater or is 5/4 grater

Bumek [7]

Answer: 5/4

Step-by-step explanation:

if two number have the same denominator, then the number with the greatest numerator is the greatest.

Basically if the bottom number of two fractions are the same, the bigger top number is the bigger number.

8 0

3 years ago

Read 2 more answers

3rs - 5cr - 15cs + 25c2

Montano1993 [528]

$3rs-5cr-15cs+25c^2=r(3s-5c)-5c(3s-5c)\\\\=(3s-5c)(r-5c)\\\\Answer:\ \boxed{3rs-5cr-15cs+25c^2=(3s-5c)(r-5c)}$

4 0

3 years ago

Read 2 more answers

Find the area_______​

Find the area_______