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LenKa [72]
3 years ago
9

A guy wire attached to the top of a radio antenna is anchored to a point on the ground 20 m from the antenna's base. If the wire

makes an angle of 51° with level
ground, how high is the antenna?
The antenna is about m high
(Round to the nearest tenth as needed)
Mathematics
1 answer:
gregori [183]3 years ago
6 0

Answer:

the cosine of the angle equals 40.0 m divided by the length of the wire

cos(58º20') = 40.0 m / L

L = 40.0 m / cos(58º20')

Step-by-step explanation:

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The endpoints of a line segment graphed on a Cartesian coordinate system are (4, 1) and (-2, -4). What are the coordinates of th
Masja [62]
The midpoint of (x1,y1) and (x2,y2) is (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

just average them


(4,1) and (-2,4)
the midpoint is  (\frac{4-2}{2},\frac{1-4}{2})=(\frac{2}{2},\frac{-3}{2})=(1,-1.5)
5 0
4 years ago
Read 2 more answers
Need answer fast with all the steps included please
wel

Answer:

6n²√3

Step-by-step explanation:

2√3n•√9n³

The above expression can be simplified as follow:

Recall

√9 = 3

2√3n•√9n³ = 2√3n × 3√n³

Recall

m√a × n√b = mn√(a × b)

Thus,

2√3n × 3√n³ = (2×3) √(3n × n³)

2√3n × 3√n³ = 6√3n⁴

Recall:

√aᵇ = (aᵇ)¹/² = aᵇ/²

√n⁴ = n⁴/²

√n⁴ = n²

Thus,

6√3n⁴ = 6n²√3

Therefore,

2√3n•√9n³ = 6n²√3

4 0
3 years ago
Part
vitfil [10]

Answer:

Step-by-step explanation:

8 0
3 years ago
Pls help.............
andriy [413]

Answer:

perpendicular

4 0
3 years ago
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Otrada [13]
The equation is:
y = 10 sin(π/15 t) + 30 
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7 0
3 years ago
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