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Oksana_A [137]
4 years ago
7

What are the factors for the expression 4x^2-5x-9

Mathematics
2 answers:
malfutka [58]4 years ago
8 0

Answer:

(x+1)(4x-9)

Step-by-step explanation:

vagabundo [1.1K]4 years ago
4 0

Answer:

4x^2 and 5x or 4 and 5, not sure how it goes, but it's for sure 4 and 5

Step-by-step explanation:

a factor is something which is multiplied by something else soooo I'd say it's 4x^2 and 5x because they are supposed to be multiplied by whatever x is

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9.1k = 63.7 what does this equal
zheka24 [161]

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6 0
4 years ago
Mr. Smith is flying his single-engine plane at an altitude of 2400 feet. He sees a cornfield at an angle of depression of 30º. W
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Answer:

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Let be the angle with the vertical so that the shell hits the plane. The situation is shown in the given figure.

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Time taken by the shell to hit the plane =t

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x

t

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The shell hits the plane. Hence, these two distances must be equal.

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x

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In order to avoid being hit by the shell, the pilot must fly the plane at an altitude (H) higher than the maximum height achieved by the shell for any angle of launch.

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3 years ago
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