All categories

3 years ago

In how many ways can four aces be drawn from a deck of cards? (Order is not important.)

1 answer:

8 0

Let's imagine that we have in the deck 52 cards. So what we need to do is to make a kind of "progression".So let me explain this by doing the procedure. we can use is like this:
4/52 * 3/51 * 2/50 * 1/49 =
24 / 6497400 = 
1 / 270725 
3.694e-6

You might be interested in

What is the sum of 5 feet 9 inches and 12 feet 3 inches

mestny [16]

5 ft + 12 ft = 17 ft

9 in + 3 in = 12 in = 1 ft 

17 ft + 1 ft = 18 ft
hope this helps

6 0

2 years ago

Read 2 more answers

Please help me figure this out!!

SpyIntel [72]

Answer:

$400 $\frac{18}{25}$ OR $\frac{10018}{25}$

Step-by-step explanation:

$400 stays the same, 72 cents is 72/100. Simplify and voila

6 0

2 years ago

Read 2 more answers

Help! Select all of the potential solution(s) of the equation 2log5x = log54.

Nastasia [14]

Answer:

x = 2

Step-by-step explanation:

2 log₅ x = log₅ 4
2 log₅ x = log₅ 2²
2 log₅ x = 2 log₅ 2
log₅ x = log₅ 2
x = 2

7 0

3 years ago

Can someone please HELP ME

nirvana33 [79]

a) the independent variable is the number of training miles.

b) the dependent variable is the cost to mail the package

c) the dependent variable is P

3 0

3 years ago

An electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricit

TiliK225 [7]

Answer:

atleast 385

Step-by-step explanation:

Given that an electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricity, they would like know the mean daily power usage for homes there.

Population std deviation = $\sigma = 50$

Sample size = $n$

STd error of sample mean = $\frac{50}{\sqrt{n} }$

Margin of error for 95% would be Critical value ( std error)

Here since population std dev is known we can use Z critical value= 1.96

$1.96*\frac{50}{\sqrt{n} }19.6^2\\n>384.16$

Sample size should be atleast 385

5 0

3 years ago