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Ierofanga [76]
3 years ago
5

PLS HELP EASY MATH!!!!

Mathematics
2 answers:
nadya68 [22]3 years ago
8 0

Answer:

D

Step-by-step explanation:

Adding matrices means to make a new matrix like this:

sum(i,k) = a(i,k) + b(i,k)

allochka39001 [22]3 years ago
5 0

Answer:

It’s D

Step-by-step explanation:

Adding means to make a new matrix like this sum(i,k) = a(i,k) + b(i,k)

I hope I can help you :)

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zubka84 [21]

Answer:

part 1: slope of AB : 3

equation of line p:  y = 3x -10

Step-by-step explanation:

part 1: slope of AB = (4-1) / (2-1) = 3

part 2: y = mx + b

b = 2 - (3 × 4) = -10

equation: y = 3x -10

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4 years ago
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3 years ago
About 75% of the sun's mass comes from hydrogen, which amounts
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<em> </em>

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3 years ago
What is the greatest common factor?
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3 0
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17. Factor x ^ 3 + 5x ^ 2 - 9x - 45 . A. (x - 5)(x ^ 2 + 9) b . (x - 5)(x - 3) * (x + 3) Factor By Groupin (x + 5)(x - 3) * (x +
jok3333 [9.3K]

Answer:

b

Step-by-step explanation:

Given

x³ + 5x² - 9x - 45 ( factor the first/second and third/fourth terms )

= x²(x + 5) - 9(x + 5) ← factor out (x + 5) from each term

= (x + 5)(x² - 9) ← factor as a difference of squares

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

3 0
3 years ago
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