3 years ago

Hello, just need the answer for this question. Thank you for your help if you do so.

Mathematics

1 answer:

musickatia [10]3 years ago

7 0

Answer:

In the first one you are missing (x - 3) so it will be 4(x - 3) and if you factor it out it will be 4x - 12

In the second one you are missing a (x -5)which means 9x(x -5) or when you factor it out it will be 9x^2 - 45x

Step-by-step explanation:

3x^2 -23x + 40 = (3x - 8) (x - 5)

3x^2 -17x + 24 = (3x -8) ( x - 3)

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115>5.75x+28.75 what is x

julsineya [31]

115>5.75x+28.75
5.75x+28.75<115
5.75x<115-28.75
5.75x<86.25
x<86.25/5.75
x<15 or (-∞,15)

Answer: x<15 or (-∞,15)

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3 years ago

Which of the following ratios has the same ratio value as 4:6?

Strike441 [17]

Answer:

6:9

Step-by-step explanation:

the answer is 6:9 because 4:6' equivalent is 2:3, which is the same as 6:9

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3 years ago

Help me please *for brainliest*!!!

Amiraneli [1.4K]

B. 18.37

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3 years ago

Simplify this expression leaving your answer in index form

kenny6666 [7]

Answer:

solution is 9a^16

Step-by-step explanation:

(6)^2= 36

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36a^25/(9a^9)

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3 years ago

It takes Nate five hours to paint a wall, and it takes Jill seven hours to paint the same wall. About how many hours will it wil

Alexxx [7]

Let's use the relation:

$\mathsf{\dfrac{1}{x} = \dfrac{1}{5} + \dfrac{1}{7}}\\ \\ \\ \mathsf{\dfrac{1}{x} = \dfrac{7+5}{35}}\\ \\ \\ \mathsf{\dfrac{1}{x} = \dfrac{12}{35}}\\ \\ \\ \mathsf{x = \dfrac{35}{12}}\\ \\ \\ \boxed{\mathsf{x\approx 2.92 \ h}}$

It would take about 3 hours to complete the work.

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4 years ago