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3 years ago

Answer when you divide called

Mathematics

1 answer:

Ugo [173]3 years ago

6 0

Quotient

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Let A be a 3 by 6 , B be a 6 by 7 and C be a 7 by 3 matrix. Determine the size of the following matrices (if they do not exist,

kozerog [31]

Answer:

a. AB: 3 by 7

b. BA: N by N

c. A^TB: N by N

d. BC: 6 by 3

Step-by-step explanation:

Given

$A =3\ by\ 6$

$B =6\ by\ 7$

$C =7\ by\ 3$

Required

The dimension of the following matrices

As a general rule:

For A * B to be successful, the columns in a must equal the rows in B

Using this rule, we have:

$A_{m*n} * B_{n * p} = AB_{m*p}$

So:

$(a)\ AB$

$A_{3*6} * B_{6*7} \to AB_{3 * 7}$

$(b)\ BA$

$B_{6*7} * A_{3*6} \to AB_{N * N}$

The column numbers of B does not equal the row numbers of A.

Hence, BA does not exist

$(c)\ A^TB$

$A^T$ implies that:

If $A =3\ by\ 6$ , then

$A^T = 6\ by\ 3$

So:

$A^T_{6*3} * B_{6,7} \to A^TB_{N*N}$

The column numbers of A^T does not equal the row numbers of B.

Hence, $A^TB$ does not exist

$(d)\ BC$

$B_{6*7} * C_{7*3} \to BC_{6,3}$

6 0

3 years ago

Help <br> A)40 <br> B)50 <br> C)130

omeli [17]

Answer:

Step-by-step explanation:

180 -40 - 90 = 50

I don't remember the name of the type of angle, but since that one angle is 50 the other side is also 50.

180 - 90 - 50 = 40

Tell me if I am wrong.

Can I get brainliest

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3 years ago

What is the solution to this equation 8x^2 - 3 = √16x+9

rusak2 [61]

Answer:x=3/2 or -1

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

What is -15 in integers

Paladinen [302]

The number -15 represents in a negative integer

<h3>How to determine what -15 represents in integers?</h3>

The number is given as:

Number = -15

Integers are numbers that do not have decimal points

The categories of integers are:

Positive integers (i.e. numbers greater than 0)
Zero
Negative integers (i.e. numbers less than 0)

The given number -15 is less than 0

Hence, the number -15 represents in a negative integer