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3 years ago

From a standard deck of 52 cards, what is the probability of picking a Heart at random from the deck?

Mathematics

1 answer:

Dimas [21]3 years ago

7 0

Answer:

Step-by-step explanation:

I just answered it on usa test prep

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the half-life of isotope X is 2.0 years. How many years would it take for a 4.0mg sample of X to decay and have only 0.50 mg of

shepuryov [24]

After 2.0 years, the 4.0 mg sample decays to 2.0 mg.

After another 2.0 years (total 4.0 years), the 2.0 mg sample decays to 1.0 mg.

And after another 2.0 years (total 6.0 years), the 1.0 mg sample decays to 0.50 mg.

So it takes 6.0 years for 4.0 mg to decay to 0.50 mg.

4 0

3 years ago

From 1995-2005, the hourly pay for lifeguards at an outdoor swimming pool increased by 2% per year. The hourly pay, P(t), in dol

12345 [234]

Answer:

The hourly pay for the lifeguards in 2001 was of $6.31.

Step-by-step explanation:

The hourly pay, in dollars, in t years after 1995, is given by the following equation:

$P(t) = 5.60(1.02)^{t}$

What was the hourly pay for the lifeguards in 2,001?

2001 is 2001 - 1995 = 6 years after 1995. So this is P(6).

$P(t) = 5.60(1.02)^{t}$

$P(6) = 5.60(1.02)^{6} = 6.31$

The hourly pay for the lifeguards in 2001 was of $6.31.

7 0

3 years ago

7/6 - (1/4 + 1/3) =??

Hitman42 [59]

Answer:

7/12

Step-by-step explanation:

7/6 - (1/4 + 1/3) =

7/6 - 1/4 - 1/3 = 14/12 - 3/12 - 4/12 = 7/12

7 0

3 years ago

Read 2 more answers

The temperature in Hokkaido in Japan was -8 degrees at 24:00 one night. By 09:00 the temperature had risen 12 degrees. What was

likoan [24]

Answer:

Step-by-step explanation:

On a number line you will got to -8 and go up 12 and you would get 4

5 0

3 years ago

If a baseball game lasted 3 1/4 hours and ended at 10 P.M. , at what time did they start

Orlov [11]

Subtracting 3.25 hours from 10 PM is subtracting 3 hours and 15 minutes from 10 PM. Doing this, we get that the game started at 6:45 P.M. Hope this helped!

5 0

3 years ago