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goldenfox [79]
2 years ago
7

Una escalera se apoya en una pared con un ángulo de 40º. Si se apoyase con un ángulo de 55º, se conseguiría una altura 35 cm may

or. Calcula la longitud de la escalera
Mathematics
1 answer:
sdas [7]2 years ago
3 0

Answer: L ≈ 2.0 m

Step-by-step explanation:

Lsin40 = h

Lsin55 = h + 0.35

Lsin55 = Lsin40 + 0.35

Lsin55 - Lsin40 = 0.35

L(sin55 - sin40) = 0.35

L = 0.35 / (sin55 - sin40)

L = 1.98452 ≈ 2.0 m

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vova2212 [387]

Answer:

There is no answer to this question.

Step-by-step explanation:

First of all the variable c is not in the equation.

Second of all, y=mx+b has only variables, it can only be simplified to b=-mx+y

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What is the slope of the line that<br> contains the points (13,-2) and (3.-2)
Allushta [10]

Points are

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8 0
3 years ago
Can someone help me with this math homework please!
lapo4ka [179]

Answer:

The answers are options A and C.

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Step-by-step explanation:

3 0
3 years ago
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What is the gradient and y-intercept of 3y=4x+6
Blababa [14]
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b is known as the y-intercept

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8 0
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If you have a cubic polynomial of the form y = ax^3 + bx^2 + cx + d and lets say it passes through the points (2,28), (-1, -5),
belka [17]

Answer:

a = 3

b = 2

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d = -4

Step-by-step explanation:

Form 4 equations and solve simultaneously

28 = a(2)³ + b(2)² + c(2) + d

28 = 8a + 4b + 2c + d (1)

-5 = -a + b - c + d (2)

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-20 = -8a + 4b - 2c + d (4)

(1) + (4)

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d = 4 - 4(2)

d = -4

8 0
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