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Andrew [12]
3 years ago
10

Suppose A and B are two matrices with the same dimensions. Explain how to find A + B and B - B.

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
6 0
A+B: the matrix with same dimension a A and B, the element in row i and column j is:  Aij+Bij

Same for A-B, but with Aij-Bij
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Pls answer this with an explanation if you can pg4 pt1
lesya [120]

I don't know the official answer but I can confirm for you that it is either C or D. I just don't remember how to determine which way the sign goes. Sorry

5 0
3 years ago
Read 2 more answers
8. Which equation has no solution?
Fantom [35]

Answer:

Step-by-step explanation:

-5+8x-9=3(x+3)

8x-14=3x+9

8x-3x-14=9

5x-14=9

5x=9+14

5x=23

x=23/5

----------------------

-216-3x=-12+6x

-216-3x-6x=-12

-216-9x=-12

9x=-216-(-12)

9x=-216+12

9x=-204

x=-204/9

x=-68/3

------------------

6-213-2x=-413-x

-207-2x=-413-x

-207-2x-(-x)=-413

-207-2x+x=-413

-207-x=-413

x=-207-(-413)

x=-207+413

x=206

------------------------

-(4x+9)=2x-3(2x+3)

-4x-9=2x-6x-9

-4x-9=-4x-9

Infinitely many solutions.

6 0
3 years ago
I’ll cylinder has a volume of 132 pi cubic feet and height of 4 feet. What is the area of the base?
iren2701 [21]

The volume formula for a cylinder is V = pi r^2 * h

First we need to find the radius:

132 pi = pi r^2 * 4

r = about 5.74

Then to find the area of the base you use A = pi * r^2

:)))The area of the base is 33 pi square feet

8 0
4 years ago
Read 2 more answers
A cylindrical container can hold 4 quarts of water if its radius and height are both tripled how much water can it hold?
Maurinko [17]

Answer:

108quartz

Step-by-step explanation:

Volume of a cylinder = πr²h

r is the radius

h is the height

If A cylindrical container can hold 4 quarts of water, then;

4 = πr²h ...... 1

Let the volume be x of the radius and height at tripled

h1 = 3h

r1 = 3r

X = πr1²h1

X = π(3r)²(3h)

X = 9πr²(3h)

X = 27πr²h .... 2

Divide 1 by 2

4/x = πr²h/27πr²h

4/x = 1/27

Cross multiply

x = 4×27

x = 108

Hence the container can hold 108quartz of water of the radius and height was tripled.

7 0
3 years ago
Interstate 91 is the longest interstate highway in the United States, connecting the cities of Seattle, Washington and Boston, M
ValentinkaMS [17]

Answer:

What he said

Step-by-step explanation:

8 0
3 years ago
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