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Sholpan [36]
4 years ago
9

A bag contains 11 red and 8 blue marbles. two marbles are selected at random without replacement from the bag. what is the proba

bility that the marbles are the same color?
Mathematics
1 answer:
butalik [34]4 years ago
5 0
There is a 57% chance that both marbles will be red, and a 42% chance that the two marbles will be blue.
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In 24 hours one set of twins drank 16 bottles of formula. Each bottle holds 4 fl oz. How many cups of formula did the set of twi
aev [14]

Answer:

16 cups of formula

Step-by-step explanation:

you take 16 (<em>the amount of bottles)</em> and multiply it by 4 (<em>the amount one bottle holds</em>)

which gets you 64 then you multiply that by 2 (<em> the amount of children</em>)

which gets you 128

then you divide by 8, because there are <em>8 fl oz in a cup</em>

which gets you 16

16 cups of formula

7 0
3 years ago
What is the size of ABC?
11Alexandr11 [23.1K]
Add them up and you have your answer
3 0
3 years ago
A farmer has 1,200 feet of fencing and wants to fence off a rectangular field that borders a straight river. He needs no fence a
iVinArrow [24]
Yay, derivitives
I'mma ignore that x is the shorter side because I don't know which one has to be shorter yet


we need to find the max area
but with 3 sides

area=LW
let's say the sides are z and y
zy=area

and the relatiionship between them is
hmm,
z+2y=1200
because one side has no fencing
so
z+2y=1200
solve for z
z=1200-2y
sub for z in other

(1200-2y)(y)=area
expand
1200y-2y²=area
take derivitive
1200-4y=dy/dx area
max is where dy/dx goes from positive to negative
solve for where dy/dx=0
1200-4y=0
1200=4y
300=y

at y<300, dy/dx<0
at y>300, dy/dx>0
so at y=300, that is the max

then
z=1200-2y
z=1200-2(300)
z=1200-600
z=600

so then
z=600
y=300
300<600

so the shorter side would be y

so then we see our choices and noticed that
erm
I think it is f(x)=1200x-2x²
takind the derivitive yeilds none of the others


so ya, you are right
6 0
3 years ago
Read 2 more answers
Sean makes 1,000 every paycheck and has to pay 100$ in tax every time he gets a paycheck , what percent of Sean’s income is spen
Alja [10]

Answer:10%

Step-by-step explanation:

If Sean is getting $100 per paycheck, and they take $100 every time, $100 is 10% of $1000

6 0
3 years ago
Read 2 more answers
PLEASE HELP!!!! FAST!!!
pogonyaev

1/10 = .10
2/5 = .40
1/4 = .25
1/3 = .33

Therefore; 3.40>3.33>3.25>3.10

6 0
4 years ago
Read 2 more answers
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