Pls help

How many ways are there for a horse race with four horses to finish if ties are possible?

trasher [3.6K]

<span>1. 4 horses tie for 1st place
2. 3 horses tie for 1st place and 1 comes in 2nd place
3. 2 horses tie for 1st place and 2 tie for 2nd place
4. 2 horses tie for 1st place, 1 horse comes in 2nd and 1 comes in 3rd
5. 1 horse comes in 1st and 3 horses tie for 2nd place
6. 1 horse comes in 1st, 2 tie for 2nd place, and 1 comes in 3rd place
7. 1 horse comes in 1st, 1 comes in 2nd, and 2 tie for 3rd place.
8. 1 horse comes in 1st, 1 comes in 2nd, 1 comes in 3rd, and 1 comes in 4th.

</span>75.

Hope this helps.

6 0

3 years ago

Find the exact value of each of the remaining trigonometric functions of theta when tan theta = -3/4

krok68 [10]

Step-by-step explanation:

sinΘ=-3,cosΘ=4,cotΘ=-4/3,secΘ=1/4 & cosecΘ=-1/3

8 0

3 years ago

A woman has n keys, of which one will open her door. If she tries the keys at random, discarding those that do not work, what is

enot [183]

Answer:

If she discard previously tried keys the probability is 1/n

If she doesn't discard previously tried keys the probability is:

$\frac{(n-1)^{k} }{n^{k} }$

Step-by-step explanation:

If she discard previously tried keys, the probability of open the door in the 1st, 2nd and 3rd try are:

1st try: $\frac{1}{n}$

2nd try: $(\frac{n-1}{n})*(\frac{1}{n-1})=\frac{1}{n}$

3rd try: ( $\frac{n-1}{n})*(\frac{n-2}{n-1})*(\frac{1}{n}) =\frac{1}{n}$

Where, for example, the probability of open the door in the 2nd try is the multiplication of the probability that the woman didn't open the door in the 1st try with the probability that she open the door in the 2nd try.

So, the probability that she open the door in the kth try is: 1/n

On the other hand, if she doesn't discard previously tried keys, the probability to open the door in the 1st, 2nd and 3rd try are:

1st try: $\frac{1}{n}$

2nd try: $(\frac{n-1}{n})*(\frac{1}{n})=\frac{n-1}{n^2}$

3rd try: ( $\frac{n-1}{n})*(\frac{n-1}{n})*(\frac{1}{n}) =\frac{(n-1)^2}{n^3}$

So, the probability that she open the door in the kth try is:

$\frac{(n-1)^{k-1}}{n^k}$

5 0

3 years ago

brainly hdd and ram memory both tests both come back with positive old tower pc doesn't always turn on and randomly

mash [69]

The correct option is 4. PSU.

The hardware part that would be checked next is PSU.

<h3>What is Power Supply Unit PSU?</h3>

An internal piece of IT hardware is known as a power supply unit (PSU). Despite their name, power conversion devices, or PSUs, do not really supply power to systems.

Some key features of PSU are-

A power supply specifically transforms alternating high voltage current (AC) to direct current (DC) and regulates the DC output voltage to the precise tolerances needed for contemporary computing components.
There is, however, a PSU substitute that may be utilized in specific circumstances.
Electrical power can be transported inside network cables using Power over Ethernet (PoE), freeing the device from being bound to an outlet.
Because PoE can deliver wireless access points wherever it is most convenient and uses less room for wiring, it is perfect for systems that need greater flexibility.

To know more about power supply unit, here

brainly.com/question/24249197

#SPJ4

The correct question is-

A customer complains that his old tower PC doesn't always turn on and randomly shut off for hours. The HDD and RAM both tests both come back with positive results.

What hardware part would you check next?

NIC
EXT-USB HDD
PS/2
PSU
SSD

6 0

2 years ago

baruka has 1/2 gallon of milk left in the fridge. how many 5/64 gallon (10 ounce) servings of milk does she has left? if she dri

Amanda [17]

Answer:

Step-by-step explanation:

Given that baruka has 1/2 gallon of milk left in the fridge

This 1/2 galon comprises of 1/2 divided by 5/64 servings of milk

i.e. number of servings left

= $\frac{\frac{1}{2} }{\frac{5}{64} } =32/5\\$

i.e. 6.4 servings

approximately 6 to 7 days of milk left.

8 0

4 years ago