All categories

3 years ago

A stack of 14 cookies is 23.1 centimeters high. How thick is each cookie?

Mathematics

1 answer:

BaLLatris [955]3 years ago

3 0

1.65cm

I searched it up

You might be interested in

One survey estimates that, on average, the retail value of a mid-sized car decreases by 8% annually. If the retail value of a ca

ivolga24 [154]

Value in 1 year = V*0.92

6 0

3 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

Decide if this statement is true or false.

AVprozaik [17]

Answer:

Step-by-step explanation:

I believe it’s false

7 0

2 years ago

Leroi and Sylvia both put $100 in a savings account. Leroi decides he will put in an additional $20 each week. Sylvia decides to

Olegator [25]

Answer:

R U SERIOUS MY FREAKIN NAME IS SYLVIA KUYT:>IUYIUYYUYIUIJUKIG:IUG&T : Y:OU?:OU>(I(N U:I?BIU?( V?YILO UINJOK

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Sarah received $55 for her birthday. She used some of that money to buy 3 shirts priced at m dollars each.

pshichka [43]

Refraise the question

7 0

3 years ago

Read 2 more answers