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Nikitich [7]
3 years ago
15

Se va a colocar una escalera que mide 5 metros (m) de longitud sobre una pared. El fabricante de la escalera recomienda que, por

seguridad, el ángulo que forme la escalera con el piso sea de 78°, ¿Cuál será la distancia sobre el piso del pie de la escalera a la pared?
Mathematics
1 answer:
ivolga24 [154]3 years ago
7 0

Answer:

4.9 m

Step-by-step explanation:

Resolvemos la pregunta anterior usando la función trigonométrica de seno

sin θ = Opuesto / Hipotenusa

θ = 78 °

Hipotenusa = Longitud de la escalera = 5 m

Opuesto = Distancia sobre el suelo = x

sin 78 = x / 5m

Multiplicar cruzada

x = sin 78 × 5 m

x = 4.8907380037m

Aproximadamente

= 4.9 m

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There are many cylinders with a height of 18 meters. Let represent the radius in meters and represent the volume in cubic meters
antiseptic1488 [7]

Answer:

Step-by-step explanation:

1). Equation that represents the volume of a cylinder,

   V = πr²h

   Here, r = radius of the cylinder

   h = Height of the cylinder

2). Fromm the given formula of volume,

   r(In m)            V(In cubic meters)

   1                           56.55

   2                          226.19

   3                          508.94

3). If the radius is doubled from 1 m to 2 m,

   At r = 1 m, Volume (V₁) = 56.55 m³

   At r = 2 m, Volume (V₂) = 226.19

   \frac{V_2}{V_1}=\frac{226.19}{56.55}

        = 4

   Therefore, volume is not doubled when radius of the cylinder is doubled.

8 0
3 years ago
A manufacturer makes bags of popcorn and bags of potato chips. the average weight of a bag of popcorn is supposed to be 3.02 oun
Dovator [93]
If these were the given choices:
A. The popcorn bag assembly line is closer to the specifications given because its z-score is closer to the standard mean than the potato chip bag assembly line.
B. The popcorn bag assembly line is closer to the specifications given because its z-score is further from the standard mean than the potato chip bag assembly line.
C. The potato chip bag assembly line is closer to the specifications given because its z-score is closer to the standard mean than the popcorn bag assembly line.
D. The potato chip bag assembly line is closer to the specifications given because its z-score is further from the standard mean <span>than the popcorn bag assembly line.

My answer is: </span>A. The popcorn bag assembly line is closer to the specifications given because its z-score is closer to the standard mean than the potato <span>chip bag assembly line.

Given:
Ave.weight of a bag of popcorn - 3.02 oz
allowable deviation - 0.02 oz

Ave. weight of a bag of potato chips - 5.03 oz
allowable deviation - 0.04 oz

Actual weight of bag of popcorn - 3.03 oz
Actual weight of bag of potato chips - 5.06 oz 

The allowable deviation is very minimal in a bag of popcorn thus its z-score is nearer to the standard mean as compared to the bag of potato chips. </span>
5 0
3 years ago
Please help ASAP! 50 PTS
Greeley [361]

Answer:

x = 20

Step-by-step explanation:

The sum of the opposite interior angles of a triangle is equal to the exterior angle

x + 2x+10 = 70

Combine like terms

3x+10 = 70

Subtract 10 from each side

3x+10-10 = 70-10

3x = 60

Divide each side by 3

3x/3 = 60/3

x = 20

5 0
3 years ago
Read 2 more answers
How many solutions does a inequality have
vagabundo [1.1K]
An inequality can have an infinite number of solutions.
The solution is an interval of numbers such as x > 2.
5 0
4 years ago
Read 2 more answers
How to put -1,5 and m=-4 into slope intercept form
forsale [732]
The answer is y=-4x+1

Explanation:

M is the slope and the slope is -4

The line crosses through the point -1,5 i assume you are saying.

If so if x goes up 1 you get the y intercept

Since the slope is -4 if x goes up 1, y goes down 4

So it goes (-1,5),(0,1),(1,-3)

And so on.

And where x is zero thats the y intercept.

So the y intercept is 1

Brainliest my answer if it helps you out?
8 0
4 years ago
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