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Strike441 [17]
3 years ago
11

PLEASE HELP ME I DONT UNDERSTAND THIS AT ALL

Mathematics
1 answer:
Delicious77 [7]3 years ago
4 0
What do you not understand
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The arm of a steel crane is 62 feet long. When it is fully extended, the crane arm forms a 30 degree angle with a line parallel
yuradex [85]

Answer: The top of the Crane is 31 feet above the ground.

Step-by-step explanation:

When it is fully extended, the crane arm forms a 30 degree angle with a line parallel to the ground. This means that a right angle triangle is formed. The length of the Crane's arm represents the hypotenuse. The horizontal distance represents the adjacent side of the right angle triangle. The distance, h of the top of the Crane from the ground represents the opposite side of the right angle triangle.

To determine h, we would apply

the Sine trigonometric ratio.

Sin θ, = opposite side/hypotenuse. Therefore,

Sin 30 = h/62

h = 62Sin30

h = 62 × 0.5

h = 31 feet

3 0
3 years ago
Manual and his friends celebrated his birthday at the FunTimes game center. He spent 4/7 of his money on go-karts and now he has
ioda

Answer:$4.07

Step-by-step explanation:

6 0
3 years ago
Asim is going to cover the path with paving
leonid [27]

Answer: £210

Step-by-step explanation:

you do the cm they given you so if it’s 630cm x 120cm = 75,600

30cm x 30cm = 900cm

75,600 divided by 900 = 84

£2.50 x 84 = £210

5 0
3 years ago
Two students form a group of eight boys and 12 girls are sent to represent the school in a parade. If the two students are chose
ch4aika [34]
Your best option would be 33/95 hope this helps
6 0
3 years ago
Read 2 more answers
Helpppppppppppppppppppppppp
pishuonlain [190]
We make the composition of both functions:
 f (x) = x ^ 2-1
 g (x) = 2x-3
 Then:
 f (g (x)) = (2x-3) ^ 2-1
 Rewriting:
 f (g (x)) = 4x ^ 2-12x + 8
 The domain of this function is all real numbers.
 Equivalently
 x: (-inf, inf)
 answer:
 x: (-inf, inf)
 option 1.
8 0
3 years ago
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