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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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What is the remainder of 5x^2 - 3x - 36 divided by x - 3
lidiya [134]

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5x^-3x-36/x-3

Step-by-step explanation:

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Alexandra [31]

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2 years ago
find two consecutive odd integers whose product is 1 less than 6 times their sum. Domain for the smallest : {-1, 1, 11}
inn [45]
Let x be the 1st odd number, and x+2 the second odd consecutive number:

(x)(x + 2) = 6[((x) + (x+2)] -1
x² + 2x = 6(2x + 2) - 1

x² + 2x = 12x +12 - 1
And x² - 10x - 11=0

Solve this quadratic expression:

x' = [+10 +√(10²- 4.(1)(-11)]/2  and x" = [+10 -√(10²- 4.(1)(-11)]/2

x' = [10 + √144]/2      and  x" = [10 - √64]/2

x' = (10+12)/2    and x" = (10-12)/2

x = 11 and x = -1

We have 2 solutions that satisfy the problem:

1st for x = 11, the numbers at 11 and 13
2nd for x = - 1 , the numbers are -1 and +1
If you plug each one in the original equation :(x)(x + 2) = 6[((x) + (x+2)] -1
you will find that both generates an equlity


6 0
3 years ago
Given that f(x)=x+9 and g(x)=4x<br> Evaluate:<br> a) fg(2)<br> b) gf(2)
Elina [12.6K]

Answer:

f(x)=11

g(x)=8

Step-by-step explanation:

f(x)=(2)+9=11

g(x)=4(2)=8

BRAINLIEST PLEASE

6 0
3 years ago
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