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bija089 [108]
1 year ago
15

Hello thee please solve my question

Mathematics
1 answer:
jek_recluse [69]1 year ago
8 0

Answer:

It is attached

Step-by-step explanation:

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a plane flying at a certian altitude is observed from two points that are 3 miles apart. the Angles of elevation made by the two
aev [14]
The altitude of the plane is 8 miles
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
In the right triangle ABC
tan(72°)=h/x
h=xtan(72°) -----> equation A
In the right triangle ABD
tan(55°)=h/(x+3)
h=(x+3)tan(55°) -----> equation B
equate equation A and equation B and solve for x
xtan(72°)=(x+3)tan(55°)
xtan(72°)-xtan(55°)=3tan(55°)
x[tan(72°)-tan(55°)]=3tan(55°)
x=3tan(55°)/[tan(72°)-tan(55°)]
Find the value of h
h=xtan(72°)
h=[3tan(55°)*tan(72°)]/[tan(72°)-tan(55°)]
h=8 miles
7 0
2 years ago
What is the annual interest earned on a $4,000 deposit with a simple interest rate of 3%?
jasenka [17]

Answer:

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Step-by-step explanation:

5 0
3 years ago
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What is the solution to this linear system?
seropon [69]
The answer is (-1,7)

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Y = –3x – 5 help I don’t know the answer
ankoles [38]

Answer:

slope: -3

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hope this helps!!:)

Step-by-step explanation:

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