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kaheart [24]
4 years ago
13

Explain why it is important to be able to perform matrix operations by hand when a calculator can do them for you.

Mathematics
2 answers:
Assoli18 [71]4 years ago
6 0
Older and did not have that type of match that is on applications.
mestny [16]4 years ago
5 0

Calculators may not always be available.


Finding an inverse by hand allows me to understand the process.


Calculators may not show the elements of a matrix as fractions.


Sometimes it is faster by hand.


A matrix could contain a variable.

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A square blanket has a diagonal stripe. The diagonal stripe is 66 inches long. How long is each side of the square blanket?
user100 [1]

9514 1404 393

Answer:

  33√2 in ≈ 46.7 inches

Step-by-step explanation:

The diagonal of a square is √2 times the side length, so for side length s we have ...

  s√2 = 66 in

  s = (66 in)/√2

  x = 33√2 in ≈ 46.7 in . . . . length of each side of the blanket

6 0
3 years ago
Corey spends 16% of his salary on food each week. If his salary is $800 per week, how much does Corey spend on food each week?
Flura [38]

Answer:

128

Step-by-step explanation:

16% of 800 is 128

7 0
2 years ago
Susan is 50 inches tall. myra is 3 inches taller than elanie,who is 2 inches shoerter than susan. how tall is myra
adoni [48]
Myra is 51 inches tall.

We'll use Susan as our base for this. She is 50 inches tall, and ignoring Myra or now, we move on to Elanie, who is said to be 2 inches shorter than Susan - therefore, Elanie is 48 inches tall. Now that we know this, we can return to Myra's information which says she is 3 inches taller than Elanie, which would mean she is in fact 51 inches tall.
8 0
3 years ago
Your answer is incorrect
Aleonysh [2.5K]
V = number of very good movies
T = total number of movies
P = percentage rated as very good

P = (100 V/T)% = (100 x 24/40)% = 60%
3 0
2 years ago
Sana deals in designer handbags. She bought 5 handbags at a price of 18,000 each and sold them all at a profit
Anettt [7]

Answer:

$118,800

Step-by-step explanation:

5 handbags for 18000 each and sold at 32% profit

1 handbag=18000*1.32=$23,760

23,760*5=$118,800

3 0
3 years ago
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