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Rina8888 [55]
3 years ago
5

Who ever gets it right I will give u a brainliest

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
7 0
The answer to this is B-80,000
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A plane flying at a certain altitude is observed from two points that are 2.2 meters apart. The angles of elevation made by the
lana [24]
tan(72)= \frac{y}{x}  ; tan(55)= \frac{y}{2.2 + x}
y=xtan(72);y=(2.2+x)tan(55)
So we are to merge the two equations into one, since both of the equations are equal to y. a = b, b = c therefore, a = c.
xtan(72)=2.2tan(55)+xtan(55)
We are to isolate x.
x[tan(72)-tan(55)]=2.2tan(55)
x=\frac{2.2tan(55)}{tan(72)-tan(55)}
The value of x is approximately, 1.9047m
Then, substitute the value of x from y=xtan(72)
y=1.9047tan(72)
y = 5.862m
Round up, then the answer would be D.

7 0
3 years ago
Helppppppppppppppppppppppp
Fittoniya [83]

<u>Answer:</u>

E = N × C

for

E: earnings

N: number sold

C: cost

she will make:

50 × 1.25 = $62.5

3 0
3 years ago
A store ordered 350 bags of grapefruit and oranges. If they
igor_vitrenko [27]

484 oranges and 350 grapefruit

Step-by-step explanation:

because 350 plus 134 equals 484

7 0
3 years ago
Find the value of x. Show your work.
yarga [219]

Answer:

x = 11

Step-by-step explanation:

∠BCE + ∠ECF = 180°

∴(10x + 15)° + 5x° = 180°

(15x + 15)° = 180°

15x = 180° - 15°

15x = 165°

x = 165°/15°

x = 11°

4 0
4 years ago
(5x - 2y)^3<br> Expand using Bionomial Theorum. Show steps, please.
tatyana61 [14]

Answer:

125x³ − 150x²y + 60xy² − 8y³

Step-by-step explanation:

(5x − 2y)³

₃C₀ (5x)³ (-2y)⁰ + ₃C₁ (5x)² (-2y)¹ + ₃C₂ (5x)¹ (-2y)² + ₃C₃ (5x)⁰ (-2y)³

(1) (125x³) (1) + (3) (25x²) (-2y) + (3) (5x) (4y²) + (1) (1) (-8y³)

125x³ − 150x²y + 60xy² − 8y³

7 0
4 years ago
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