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zavuch27 [327]
3 years ago
7

What is 3 1/2 • 1 1/2

Mathematics
1 answer:
postnew [5]3 years ago
3 0

Answer:

5 1/4

Step-by-step explanation:

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La fuerza necesaria para evitar que un auto derrape en una curva varía inversamente al radio de la curva y conjuntamente con el
Vika [28.1K]

Answer:

768 libras de fuerza

Step-by-step explanation:

Tenemos que encontrar la ecuación que los relacione.

F = Fuerza necesaria para evitar que el automóvil patine

r = radio de la curva

w = peso del coche

s = velocidad de los coches

En la pregunta se nos dice:

La fuerza requerida para evitar que un automóvil patine alrededor de una curva varía inversamente con el radio de la curva.

F ∝ 1 / r

Y luego con el peso del auto

F ∝ w

Y el cuadrado de la velocidad del coche

F ∝ s²

Combinando las tres variaciones juntas,

F ∝ 1 / r ∝ w ∝ s²

k = constante de proporcionalidad, por tanto:

F = k × w × s² / r

F = kws² / r

Paso 1

Encuentra k

En la pregunta, se nos dice:

Suponga que 400 libras de fuerza evitan que un automóvil de 1600 libras patine alrededor de una curva con un radio de 800 si viaja a 50 mph.

F = 400 libras

w = 1600 libras

r = 800

s = 50 mph

Tenga en cuenta que desde el

F = kws² / r

400 = k × 1600 × 50² / 800

400 = k × 5000

k = 400/5000

k = 2/25

Paso 2

¿Cuánta fuerza evitaría que el mismo automóvil patinara en una curva con un radio de 600 si viaja a 60 mph?

F = ?? libras

w = ya que es el mismo carro = 1600 libras

r = 600

s = 60 mph

F = kws² / r

k = 2/25

F = 2/25 × 1600 × 60² / 600

F = 768 libras

Por lo tanto, la cantidad de fuerza que evitaría que el mismo automóvil patine en una curva con un radio de 600 si viaja a 60 mph es de 768 libras.

7 0
4 years ago
Which graph represents a function, f(x), that has a slope of 3 units and f(0) = 14?
lukranit [14]

Answer:

A

Step-by-step explanation:

3 0
3 years ago
PLEASE HELP ASAP!!
k0ka [10]

You can download answer here

tinyurl.com/wpazsebu

8 0
3 years ago
The segments shown below could form a triangle.<br>o<br>O A. True<br>C<br>B Fase​
levacccp [35]

Answer:

False

Step-by-step explanation:

The sum of the smaller two sides must be larger than the third side

8+7 > 15

15 >15

This is not true so the three sides cannot form a triangle

7 0
4 years ago
Half the product of two number a and b, added to thrice a third number c
dexar [7]

Answer:

  ab/2 +3c

Step-by-step explanation:

Maybe you want to translate this to an algebraic expression.

__

The product of a and b is written ab.

Half that can be 1/2ab or ab/2. The latter tends to be less ambiguous.

Thrice c is 3c.

So, your expression is ...

  ab/2 +3c

4 0
2 years ago
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