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Nata [24]
3 years ago
6

What is 9 more than the product of five and a number "n" written as an algebraic expression

Mathematics
2 answers:
masya89 [10]3 years ago
8 0
The answer is b : 5n+9
umka2103 [35]3 years ago
7 0
B. 9+5n

Product means to multiply, so the product of 5 and a number (n) would be 5n.
9 more means addition so

9+ 5n
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An airplane must clear a 60-foot pole at the end of a runway 500 yards long determine the angle of elevation at which the airpla
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2.3 degrees.      

Step-by-step explanation:

Please find the attachment.

We are told that an airplane must clear a 60-foot pole at the end of a runway 500 yards long.

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1 yard= 3 feet.

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We can see from our attachment pole and runway are in form of a right triangle. The pole is opposite to angle of elevation of plane and length of runway is adjacent.

Since tangent represents the relation between opposite and adjacent of right triangle, So we will use tangent to find angle of elevation that plane must ascend to clear the pole.  

tan(\theta)=\frac{60}{1500}    

\theta=\tan^{-1}(\frac{60}{1500} )

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\theta=2.290610042639

Therefore, the airplane must ascend 2.3 degrees to clear the pole.

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