1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Debora [2.8K]
3 years ago
14

Be quick! i will mark the correct one brainliest :)

Mathematics
2 answers:
Debora [2.8K]3 years ago
7 0
abcdefghijklmnopqrstuvwxyz
Inessa [10]3 years ago
3 0
Whats the queastion think
You might be interested in
If x²+1/4x²=8 ,find the value of x+1/2x​
Eva8 [605]

Answer:

16/31

Step-by-step explanation:

x²+1/4x²=8

x²+1=32x²

1=32x²-x²

1=31x²

√1=√31x²

31x=1

x=1/31

Now x+1/2x

=31+1/2×31

=32/62

=16/31

4 0
2 years ago
The probability that mary will win a game is 0.04, so the probability that she will not win is 0.96. if mary wins, she will be g
frosja888 [35]
Let
EV----------> <span>expected value
</span>
we know that

EV = (Probability of Winning)*(Value of Winning) + (Probability of Losing)*(Value of Losing)
so
EV=0.04*(200)+0.96*(-14)-----> EV=8+(-13.44)-----> EV=-$5.44
So
she expects to lose $5.44 every time she plays (this is on average)

the answer is
-$5.44
<span>

</span>
8 0
3 years ago
Probability Question
trapecia [35]

Answer:

39/812

Step-by-step explanation:

The total no. of balls is 6+7+8+9 = 30.

There are 4 possible outcomes that fits "all 3 balls taken are of the same color": 1. all red balls/2.all green balls / 3. all blue balls/4. all white balls. Either one will do. So the required probability is the sum of probability that these 4 outcomes happen.

First lets find the probability of taking out all red balls.

There are total 30 balls, but only 6 are red, so in the first try, the probability of taking out a red ball is 6/30.

In the 2nd time, since you have already taken out one red ball, the no. of red balls left is 5, and the total no. of balls is 29. So the probability of taking out another red ball is 5/29.

This repeats for the 3rd time. The probability of taking out the 3rd red ball is 4/28.

These 3 times all have to happen in order, so the total probability is

6/30 x 5/29 x 4/28

=1/203

Now find the probability of taking out all green balls. The process is same from finding the probability of taking out all red balls, just that replace 6 to 7 instead.

So, the probability of taking out all green balls is

7/30 x 6/29 x 5/28

=1/116

Repeat again for blue balls and white balls.

Probability of taking out all blue balls = 8/30 x 7/29 x 6/28 = 2/145

Probability of taking out all white balls= 9/30 x 8/29 x7/28 =3/145

Now add all 4 fractions up.

1/203 + 1/116 + 2/145 + 3/145

=39/812

By the way, another method is to use combination "nCr". You will also get the same answer.

n: number of items

r: number of items being chosen at a time

(Probability of all red balls + Probability of all green balls + probability of all blue balls + probability of all white balls)÷Total no. of combinations - which is random 3 balls out of 30.

(6C3 + 7C3 + 8C3 +9C3) / (30C3)

= 39/812

8 0
3 years ago
Read 2 more answers
which trends are reshaping the business, microeconomic and microeconomic environment and competitive arena?​
UNO [17]
Honestly I don’t even know what this is sorry I tried
3 0
3 years ago
The aquarium holds 150 liters of water. How many milliliters is this?
klio [65]
I think it would be150,000 ml
hope this helps :D
7 0
3 years ago
Read 2 more answers
Other questions:
  • Please amswere my school is due tommorow and i meed some help​
    10·1 answer
  • Which number is both a factor and a multiple of 14
    9·2 answers
  • Given the sequence:<br> 25, 21, 17, 13,...<br> Write the explicit equation that models the sequence.
    7·1 answer
  • In 5-7 write each numbrr in standard form, (4×10⁴) + (6×10²)​
    9·1 answer
  • Show examples...write a fraction or mixed number as a decimal
    6·1 answer
  • Find least common multiple of 9 and 12
    13·1 answer
  • Consider the following function. f(x) = ln(1 + 2x), a = 2, n = 3, 1.8 ≤ x ≤ 2.2 (a) Approximate f by a Taylor polynomial with de
    11·1 answer
  • Mrs. Kremer uses a 15% off coupon when she buys a camera. The original price of the camera is $225.How much money did she pay fo
    13·1 answer
  • At the market you can buy 5 bags of apples for $23.60. At the farm you can buy 7 apples for $32.76. Which is the better deal
    7·1 answer
  • What is the missing length?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!