A boat captain can see a lighthouse on the shore which is 103ft in front of him. If the lighthouse is 22ft tall, at what angle o
f elevation can the captain see the top of the lighthouse? options: 45° 12° 77° 11°
1 answer:
Answer:
Step-by-step explanation:
A boat captain, lighthouse and its base form a right triangle.
<u>We need to find the angle opposite to 22 ft side:</u>
- tan x = 22/103
- x = arctan (22/103)
- x = 21°
<em>Note, option D should read 21° not 11°</em>
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C or D
Step-by-step explanation:
Answer: 13
Step-by-step explanation:
65-13=54
54/4=13
Order of operations
Y = -4x - 2
P (-16, -11)
a = -4, b = 0, c = -2
m = -a/b
m = -(-4)/(-2)
m = 4/(-2)
m = -2
y-yo = m(x-xo)
y-(-11) = -2[x-(-16)]
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A outra questão é semelhante.
Answer:
No.
Step-by-step explanation:
3/4 is not less than 2/10.
3/4 = 15/20
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15/20 > 4/20
Answer: (2, -25)
Step-by-step explanation:
The x coordinate of the vertex is 
.
When x=2, 
.
So, the vertex is (2, -25).
