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mestny [16]
3 years ago
13

Which of the following sets is closed under multiplication? {0, 1, 2, 4} {0, 1} {1, 2}

Mathematics
1 answer:
emmasim [6.3K]3 years ago
3 0
It would be {0,1} :)
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Help help d. e. f. g. h.
andrey2020 [161]
D. 7
e. 4
f. 5
g. 11

Get these by adding/subtracting the number at the end (use the opposite operation) and then divide the coefficient from both sides. 
7 0
3 years ago
If the points (-3,2),(4,-4) are joined to form a straight line, at what point does the line intersect the y-axis
Mashcka [7]
Construct the line using the two points:
slope: m = (-4 - 2) / (4 + 3) = -6/7;
then, y = mx + b => 2 = (-6/7)(-3) + b => 14/7 - 18/7 = b => b = -4/7.
And your y-intersect is -4/7.
7 0
3 years ago
Ots
vagabundo [1.1K]

Answer:

9.5

Step-by-step explanation:

6 0
3 years ago
Factor the trinomial f(x) = 2x² + 5x – 12 ?
gavmur [86]

Answer:

(x + 4)(2x - 3)

Step-by-step explanation:

Given

f(x) = 2x² + 5x - 12

Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 2 × -12 = - 24 and sum = + 5

The factors are + 8 and - 3

Use these factors to split the x- term

2x² + 8x - 3x - 12 ( factor the first/second and third/fourth terms )

2x(x + 4) - 3(x + 4) ← factor out (x + 4) from each term

(x + 4)(2x - 3)

Thus

f(x) = 2x² + 5x - 12 = (x + 4)(2x - 3) ← in factored form

5 0
3 years ago
Can anyone simplify this:<br><br> ab+bc+ac
Yuliya22 [10]
It's a to the power of 2
B to the power of 2
C to the power of 2
6 0
3 years ago
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