29.09.2021

The blades of a helicopter's propeller are perpendicular and congruent. the distance between consecutive blade tips is 24 feet. find the length (b) of each blade.

. 9

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17.02.2022, solved by verified expert
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Check the picture below.

now, recall, both blades are congruent, thus a = b, so c² = a² + b² -> c² = b² + b².


The blades of a helicopter s propeller are perpendicular, №15221671, 29.09.2021 12:47
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P Answered by PhD

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P=2000

R=1.5

T=6

SI=(2000*1.5*6)/100

=(2000*9)/100

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Mathematics
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P Answered by PhD

The wood before starting =12 feet

Left wood=6 feet

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Therefore, till now 8 pieces have been made.

Mathematics
Step-by-step answer
P Answered by PhD

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Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

Mathematics
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P Answered by PhD

30% of 420 are first year students

first year students = (30/100 )*420

=126 students

Student who are not in first year = 420-126

=294 students  

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