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2 years ago

Construct a 2x2 matrix whose element are given by i+j

Mathematics

1 answer:

musickatia [10]2 years ago

5 0

9514 1404 393

Answer:

see below

Step-by-step explanation:

Assuming i and j refer to the row and column of a given element, that matrix would be ...

$\left[\begin{array}{cc}2&3\\3&4\end{array}\right]$

Rows are numbered top down, starting with 1. Columns are numbered left-to-right, starting with 1. The upper left element is in row 1, column 1, so has a value here of 1+1 = 2. Each number is one more than the one to its left. Each number is 1 more than the one above it.

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(as a unit rate simplified) 24 bottles for $2.95

AysviL [449]

Answer:

Bottle unit: 8.14

Dollar unit: $0.12

Step-by-step explanation:

Dividing the equation, bottle on top for bottle and dollars on top for dollar.

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3 years ago

Bonnie deposits $70.00 into a new savings account. The account earns 45 % simple interest per year , s added or removed from the

nordsb [41]

Answer:

$\$164.5$

Step-by-step explanation:

Bonnie deposits $70.00 into a new savings account.

The account earns 45% simple interest per year.

She neither added or removed from the savings account for 3 years.

We know that,

$i=\dfrac{P\cdot r\cdot r}{100}$

here,

i = interest,

P = principal = $70,

r = rate of interest = 45%,

t = time = 3 years,

Putting the values,

$i=\dfrac{70\cdot 45\cdot 3}{100}=\$94.5$

So the total amount will be,

$=\text{Principal}+\text{Interest}$

$=70+94.5$

$=\$164.5$

6 0

3 years ago

Read 2 more answers

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Nitella [24]

As we know these two lines mean | | a modulus sign. The modulus symbol is sometimes used in conjunction with inequalities. A modulus sign in simple words just ignores the sign and gives us the absolute value.

For example in this case the modulus gives us 4 x 2 - 3. As you can see the modulus sign has ignored the original negative signs with the numbers.

So after evaluating the equation the answer comes out to be 8 - 3 which is equal to 5.

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3 years ago

Use the digits 3,7,1 and 5 to write a number that rounds to 1,700

Hitman42 [59]

To how many sig figs or decimal places? Could use 1735 if rounded to 2 significant figures (2sf)

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3 years ago

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