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2 years ago

In C = A + B, what is the value of the entry represented by C41?

Mathematics

1 answer:

ratelena [41]2 years ago

5 0

Answer

C41 = 2

This very simple to do.

First locate the entry in A41 in matrix A. That is the entry in the intersection of the fourth row and first column of matrix A. This entry is 7.

Then multiply by the scalar which is 2 to get,

Next we locate the entry in B41 in matrix B also. Which is 4. We multiply by the scalar of -3 to get,

-3 x 4= -12

We now add these two corresponding entries to obtain,

14+-12= 2

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Which situations can represent the expression n + 2?

Juli2301 [7.4K]

Answer:

Many situations can do so.

Step-by-step explanation:

Imagine your father gave you $n (n dollars), your mother then gives you $2 dollars. How many dollars do you have now? n+2 dollars.

You have two assignments to complete for this term. Your Physics teacher decides to give you n assignments to do. How many assignments do you need to do to complete the term? n+2 assignments.

On Brainly, you have n points. You answered a Geography question which awarded you 2 points. How many points do you have now? n+2 points.

Hope it helps!

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3 years ago

(3*10)*8=3*(10*8) what property is this

Dahasolnce [82]

That is the Community Property of Multiplication.

Hope that helps :)

8 0

2 years ago

Read 2 more answers

-7(2x - 4) - 7= 3(x - 5)+ 4x - 9 distribute and combine like terms

Leni [432]

X=15/7 (in exact form) or x= 2 1/7 (in mixed number form) or x= 2.142857 (in decimal form)

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2 years ago

Chloe is painting on a stretched canvas that has an area of 108 square inches. The length of the canvas is 12 inches. The width

Stolb23 [73]

Answer: Width of canvas = 9 inches

Area left for painting after painting the border = 70 square inches.

Explanation :

Since we have given that

Area of painting = 108 square inches

Length of canvas = 12 inches

As we know that

$\text{Area of rectangle} = length\times breadth$

$108=12\times breadth\\\\\frac{108}{12}=breadth\\\\9=breadth$

So, breadth of canvas = 9 inches .

Now, Chloe paints a 1 inch wide blue border on the canvas.

$\text{So, remaining length left for painting after painting the border} = 9-1-1=9-2=7\text{ inches}$

$\text{ Remaining breadth left for painting after painting the border }= 12-1-1=12-2= 10\text{ inches}$

$\text{So , area of remaining portion }= length\times breadth \\\\ \text{ area of remaining portion }=7\times 10\\\\\text{ area of remaining portion }=70 \text{ square inches}$

Hence, remaining area = 70 square inches .

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2 years ago

A brand new car is $22,000 and its value depreciates 7% each year. How many years will it take for your car to be $10,000? Round

Elan Coil [88]

.200 because 22,000 % by 7 is 1540 which you divide by 10,000

4 0

3 years ago