3 years ago

Which answer is correct?

Mathematics

1 answer:

Airida [17]3 years ago

6 0

I think it would be D

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Use matrix addition to solve this equation

REY [17]

Answer:

c11 = 8
c31 = 20
c22 = 14

Step-by-step explanation:

The sum of two matrices is the sum of corresponding terms.

$\left[\begin{array}{ccc}3&1&0\\-1&2&4\\9&7&-2\end{array}\right] +\left[\begin{array}{ccc}5&2&4\\1&12&3\\11&3&-2\end{array}\right] =\left[\begin{array}{ccc}8&3&4\\0&14&7\\20&10&-4\end{array}\right]$

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3 years ago

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Z+x3:use x = 1 and z = 19

pogonyaev

Answer:21

Step-by-step explanation: plug in 19 and 1

1x3 is 3 plus 19 is 21

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3 years ago

3. A rectangular floor of dimensions

ICE Princess25 [194]

Answer:

area of the floor = 540*840.

=453600 cm sq.

area of the marbal piece = 1/2 * 40* 30 = 600 cm sq.

now,

no. of marble piece reqd. = 453600 / 600 = 756 marbal piece.

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a store manager sends an email survey to customers who have registered at the store's websites. Why is this survey biased?

Shalnov [3]

The survey is biase because it is only surveying shoppers that have registered on the website,.

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2 years ago

A pair of dice is rolled. Find the probability that the sum of the two dice is less than 2

Y_Kistochka [10]

Answer:

0/36

Step-by-step explanation:

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