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3 years ago

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]3 years ago

6 0

Older and did not have that type of match that is on applications.

mestny [16]3 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 steel worker dropped his wrench off the top of a new high rise building. How far will the wrench fall in 3 seconds?

rosijanka [135]

Using S = ut + 1/2gt², from rest, u = 0

S = 1/2gt², g ≈ 9.8 m/s²

S = 1/2 *9.8*3²

S = 0.5 *9.8*3*3

S ≈ 44.1 m

6 0

3 years ago

A piece of fabric is 1/3 yard by 3 5/8 yards. Irma solves 1/3⋅3 5/8 to find the area of the fabric in square yards. Enter number

Harlamova29_29 [7]

For this case we have:

The area of the piece of fabric is given by $A = a * b$

Where

$a = \frac{1}{3}yards$

$b = 3 \frac{5}{8}yards$

Substituting in the formula of the area we have:

$A = \frac{1}{3}* 3 \frac{5}{8}\\$

$A = \frac{1}{3}* (3 + \frac{5}{8})\\$

$A = 1 + \frac{5}{24}$

$A = 1\frac{5}{24}yards ^ 2\\$

Thus, the area of the piece of fabric is given by: $A = 1\frac{5}{24}yards ^ 2\\$

Answer:

$A = 1\frac{5}{24}yards ^ 2\\$

4 0

3 years ago

Mimi recorded a soccer game that lasted 1

lyudmila [28]

9514 1404 393

Answer:

7 hours

Step-by-step explanation:

4 × (1 3/4) = 4×1 + 4×3/4 = 4 + 3 = 7

Mimi spent 7 hours watching the game.

7 0

2 years ago

(-3, -4) and (-5, y); m = -9/2

Mazyrski [523]

Answer:

the answer would be y= -40

4 0

2 years ago

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Rus_ich [418]

Answer:

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7 0

2 years ago