Please answer this correctly , will mark brainliest answer !!!

Mathematics

2 answers:

ivanzaharov [21]3 years ago

7 0

Answer:

x^2-7

Step-by-step explanation:

RideAnS [48]3 years ago

5 0

Answer:

$x+1$

Step-by-step explanation:

We know that the area is the length times width, so $(x-7)l=x^2-6x-7\\l=\frac{(x^2-6x-7)}{(x-7)}\\\\l=x+1$ .

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If n+h/5=f+9/9, then n/5=

Ann [662]

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Question
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$\boxed { \frac{n+h}{5} = \frac{f+9}{9}}$

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Split the fraction on the left
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$\boxed { \frac{n}{5} + \frac{h}{5} = \frac{f + 9}{9}}$

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Take away h/5 from both sides
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$\boxed { \frac{n}{5} = \frac{f+9}{9} - \frac{h}{5}}$

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Change the denominator to be the same
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$\boxed { \frac{n}{5} = \frac{5f+45}{45} - \frac{9h}{45}}$

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Put it into single fraction
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$\boxed { \frac{n}{5} = \frac{5f+45-9h}{45} }$

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Rearrange (This step may not be necessary)
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$\boxed {\frac{n}{5} = \frac{5f-9h+ 45}{45} }$

$\bf \Longrightarrow \ Answer \ : \boxed {\boxed {\frac{n}{5} = \frac{5f-9h+ 45}{45} }}$

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3 years ago

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Alexeev081 [22]

Answer:

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Step-by-step explanation:

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A rectangular field is 450 meters long and 300 meters wide. What is the area of the field in square kilometers?

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