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3 years ago

For which value of x is the equation 6 = 12x true?

Mathematics

1 answer:

skad [1K]3 years ago

5 0

Answer:

x = 0.5

Step-by-step explanation:

You might be interested in

PLEASE HELP!!!!!!!!

Korolek [52]

Answer:

2π - 4√5

(= -2.66 to nearest hundredth).

Step-by-step explanation:

√(2π - 4√5)^2

= 2π - 4√5 (by the definition of a square root)

If you want an approximate value it is

-2.66 to the nearest hundredth

7 0

2 years ago

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

(b-2)x= 8

s344n2d4d5 [400]

Answer:

Step-by-step explanation:

(2-2)x = 8

(0)x = 8

x = 8/0

no solution

6 0

3 years ago

Multiply out the brackets:<br>(m + 2) (m - 2)

kramer

Answer:

(m+2)(m-2)=m^2-4

Step-by-step explanation:

(m+2)(m-2)=m(m-2)+2(m-2)

=m^2-2m+2m-4

=m^2-4

6 0

3 years ago

Read 2 more answers

Maria wants to buy a new bicycle that costs $129.89. She has saved $78 of her babysitting money. Maria’s grandfather gave her $2

Makovka662 [10]

Answer:

more than what she has

Step-by-step explanation:

6 0

3 years ago