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2 years ago

What is the probability of getting either a three or a club when drawing a single card from a deck of 52 cards?

1 answer:

4 0

In a deck of cards, there are always four of each card. There are also 13 cards in each suit. This means that the probability is 13+4/52 which is <span>17/52

</span>:)

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Help me with this equation!

vlada-n [284]

The correct answer is B. -12

8 0

2 years ago

Read 2 more answers

What is the energy of an object has due to it’s motion is called wat

Snowcat [4.5K]

Answer:

The correct answer is Kinetic Energy

Step-by-step explanation:

From conservation of energy a body at rest posses energy called Potential Energy under which it acquired at particular position of the body i.e at rest

Then as soon body starts moving with a certain speed "v" there is conservation of energy from Potential energy to Kinetic energy given as product of a half with mass of the body and square of its velocity.

In formular K.E= 1/2mv^2 where m stands for mass of the body and v is the speed of the body.

3 0

2 years ago

Read 2 more answers

1) UN MOVIL A SE MUEVE DESDE UN PUNTO CON VELOCIDAD CONSTANTE DE 20m/s EN EL MISMO INSTANTE A UNA DISTANCIA DE 1200m, OTRO MOVIL

alisha [4.7K]

Answer:

El móvil B necesita 60 segundos para alcanzar al móvil A y le alcanza una distancia de 2400 metros con respecto al punto de referencia.

Step-by-step explanation:

Supóngase que cada movil viaja en el mismo plano y que el móvil B se localiza inicialmente en la posición $x = 0\,m$ , mientras que el móvil A se encuentra en la posición $x = 1200\,m$ . Ambos móviles viajan a rapidez constante. Si el móvil B alcanza al móvil A después de cierto tiempo, el sistema de ecuaciones cinemáticas es el siguiente:

Móvil A

$x_{A} = 1200\,m+\left(20\,\frac{m}{s} \right)\cdot t$

Móvil B

$x_{B} = \left(40\,\frac{m}{s} \right)\cdot t$

Donde:

$x_{A}$ , $x_{B}$ - Posiciones finales de cada móvil, medidas en metros.

$t$ - Tiempo, medido en segundos.

Si $x_{A} = x_{B}$ , el tiempo requerido por el móvil B para alcanzar al móvil A es:

$1200\,m+\left(20\,\frac{m}{s} \right)\cdot t = \left(40\,\frac{m}{s} \right)t$

$1200\,m = \left(20\,\frac{m}{s} \right)\cdot t$

$t = \frac{1200\,m}{20\,\frac{m}{s} }$

$t = 60\,s$

El móvil B necesita 60 segundos para alcanzar al móvil A.

Ahora, la distancia se obtiene por sustitución directa en cualquiera de las ecuaciones cinemáticas:

$x_{B} = \left(40\,\frac{m}{s} \right)\cdot (60\,s)$

$x_{B} = 2400\,m$

El móvil B alcanza al móvil A a una distancia de 2400 metros con respecto al punto de referencia.

3 0

2 years ago

The sales tax on a used car is $144, and the sales tax rate is 5%. Find the purchase price (the price before tax are added).

kupik [55]

Answer:

151.20

Step-by-step explanation:

3 0

2 years ago

The flow of water from a faucet can fill a

mash [69]

Answer:

3/18 gallons/seconds, or 1/6 gallons/seconds

Step-by-step explanation:

We know that for every 3 gallons, the faucet fills that amount up in 18 seconds. Another way we can write that is "3 gallons for 18 seconds", or 3 gallons / 18 seconds.

Therefore, in terms of gallons to seconds, we can write this as 3 gallons/18 seconds.

One cool thing we can do with fractions is that if we multiply/divide the numerator by the same thing, the fraction is still the same amount, like if we divided by one. For example, if we multiply 1/10 by 10/10 = 1, we would get 10/100 = 1/10, changing the numbers but still keeping the fraction intact. We can apply this concept here to reduce the fraction.

Reducing the fraction means that we want to make the numerator and denominator as small as possible while still keeping them as integers. This means that, if possible, we should divide both the numerator and denominator by their greatest common factor (if it is greater than 1).

To find the greatest common factor, we can list factors and find the greatest one among them.

We have two numbers, 3 and 18.

The factors of 3 are 1 and 3 while the factors of 18 are 1, 2, 3, 6, 9, and 18. The greatest common number among these two is 3. Therefore, we can divide both these numbers by 3 to get

3/18 = 1/6 gallons/seconds as our answer

8 0

2 years ago