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3 years ago

Need help on all 3 , it’s very appreciated

Mathematics

1 answer:

Sergio [31]3 years ago

5 0

For number eight the answer is 7 and 1/2

For number nine it is 16/24 = 2/3 If the numerator is greater than or equal to the denominator of a fraction, then it is called an improper fraction

For number 10 the least common denominator of 8/15 is 120, and for 7/24 it is 168

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4 years ago

Write an equation of the line that passes through the points (-1, -2) and (2.4)

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As eq of line passing through 2 points is

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4 years ago

Factor this expression completely and then place the factors in the proper location. Note: Place factors alphabetically!

Usimov [2.4K]

To solve this problem you must apply the proccedure shown below:

1. You have the following expression given in the problem above:

$mn - 4m - 5n + 20$

2. The first thing you must do to factor the expression is to group the terms, as following:

$(mn-4m)+(-5n+20)$

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$m(n-4)-5(n-4)$

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3 years ago

ABC Computers sold 30tablets. this week. their.goal is 33% more next. week Graph a inequality that represents their goal.

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Next week they will want to sell 40 tablets

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4 years ago

If x^3+ax^2-18x+b = (x+5)(x-4)(x+2) what is a and b

blondinia [14]

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$(x + 5)(x - 4)(x + 2) =$

$(x + 5) ({x}^{2} - 2x - 8) =$

${x}^{3} - 2 {x}^{2} - 8x + 5 {x}^{2} - 10x - 40 = \\$

${x}^{3} + 3 {x}^{2} - 18x - 40$

_________________________________

Compare :

${x}^{3} + 3 {x}^{2} - 18x - 40$

${x}^{3} + a {x}^{2} - 18x + b$

Thus :

$a = 3$

and

$b = - 40$

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3 years ago