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mr_godi [17]
2 years ago
7

PLEASE HELP ME!!!! THIS IS TIMED PLEASE HELP ME!!!! PLEASE!!!! PLEASE HELP ME!

Mathematics
2 answers:
guapka [62]2 years ago
7 0

Answer:

18/28

Step-by-step explanation:

MissTica2 years ago
7 0
23/28 i could be wrong
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NEED HELP NOW FUNCTIONS DONT SKIP
jekas [21]

Answer:

I think its a function

Step-by-step explanation:

6 0
3 years ago
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A shop has 8 different types of postcards and at least 13 of each type. how many selections of 12 postcards are there if
Zolol [24]

Answer:

Answered

Step-by-step explanation:

It is a combbinatorics problem. let's think as we need to do 8 partitions  

of these 13 to separate the postcards of different types. So The number of

partitions of n=13 into r=8 terms counting 0's as terms as  C(n+r-1,r-1)​.

(a)

Here n=13 and r=8, put it in the above formula so we get C(13+8-1,8-1)= C(20,7)= 77520 selections.

b).

Here, either (i) we can choose none of type I or (ii) we choose one of type I

Case(i): r=7, n=12 (Here we have only 7 types to choose from​)

Case(ii): r=7, n=11 (Here we have only 11 cards to choose and only 7 types to choose them from)​

Case (i) + Case(ii) = ,C(12+7-1,7-1) + C(11+7-1,7-1) = C(18,6) + (17,6) = 18564+12376 = 30940 selections.

4 0
3 years ago
A box contains only black and white chips. There are 8 black chips and 6 white chips. How many white chips must be removed so th
3241004551 [841]

There are 8 black chips and 6 white chips, 14 chips in total. In this situation the probability to pick a black chip is 8/14=4/7.

When one white chip was removed, then only 5 white chips left and the total number of chips became 13. In this situation the probability to pick a black chip is 8/14=4/7.

When second white chip was removed, then ther left 4 white chips and the total number of chips became 12. Now the probability to pick a black chip is 8/12=2/3 as needed.

Answer: Must be removed 2 white chips. Correct choice is B.


5 0
3 years ago
The function G(x)=f(x+3)+2 which of the following is true of the graph of g(x)?
zepelin [54]
G(x)=(x+3)+2

G(x) = (x-h) + k
h translates the graph left/right and k translates the graph up/down.
Because the equation is x- the parenthesis is (x - - 3) which makes h a negative 3 and will translate left. The k positive so it will move up.
Letter B
7 0
3 years ago
Cold antoje help me answering this please :).<br>Fake answer will be reported. ​
Harrizon [31]

Answer:

158.1

Step-by-step explanation:

Distance is the square root of (x1-x2)^2+(y1-y2)^2

square root of (-4-146)^2+(2-52)^2

square root of 150^2+50^2

square root of 22500+2500

square root of 25000

50sqrt10

Rounding is 158.1

5 0
3 years ago
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