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svet-max [94.6K]
3 years ago
15

Which matrix Is the product of a 3x3 identity matrix and the scalar 3

Mathematics
1 answer:
maw [93]3 years ago
8 0

Answer:

  Each diagonal element will be 3. Off-diagonal elements will be zero.

Step-by-step explanation:

The one that looks like ...

  \left[\begin{array}{ccc}3&0&0\\0&3&0\\0&0&3\end{array}\right]

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Pls help me it's due today​
Dimas [21]

Answer:

r³ + 15r² - 10r - 4

Step-by-step explanation:

First, note you can remove the brackets, in this case they contribute nothing at all.

Then, group the like terms and add them, e.g., we have 3r³ and -2r², they add up to r³.

Finally, order them from greatest power of r to smallest power of r.

That's all!

8 0
3 years ago
Mrs.farnam is getting new carpet in her classroom! Her classroom is 18 meters long and 12 meters wide. How many square meters of
aleksley [76]

Answer:

216 meters

Step-by-step explanation:

make a 4 square box. put the numbers 10 & 2 on top an 8 & 10 on the side.then multiply...

8 * 10 = 80

8 * 2 = 16

10 * 10 = 100

&

10 * 2 = 20

then add all the numbers together.... 80+16+100+20 = 216 meters

the end. Can u mark me the brainliest when u get the chance? thnxs

7 0
3 years ago
Solve for y.<br> 6/11= y/3.
borishaifa [10]
The answer it is 18/11
8 0
3 years ago
An architectural drawing lists the scale as 1/4" = 1'. If a bedroom measures 634" by 412" on the drawing, how large is the bedro
Rudiy27

and the answer should be 18 x 27. The answers were reversed.

Step-by-step explanation:

basically you can do (6x4) + 3 = 27

and (4x4) + 2 = 18.

8 0
3 years ago
Help I don’t get this
Pie

Answer:

550 pounds of lettuce and cheese combined.

Step-by-step explanation:

ok so

1/10 of 5,000

and

1/100 of 5,000

(1/10)5,000

it is 500 pounds of cheese

now for 1/100

(1/100)5000

it is 50 pounds of lettuce

500+50=550

Hope this helps.

5 0
3 years ago
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