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
fiasKO [112]
2 years ago
12

A bag contains 30 lottery balls numbered 1-30 a ball is selected, not replaced,then another is drawn.find each probability

Mathematics
1 answer:
Valentin [98]2 years ago
6 0
The probability of the first event with x possible outcomes is equal to x/30. Also, the probability of the second event with y possible outcomes is y/29.

(1) P of 2 digit number, 21/30
      P that the number is 4 is 1/29
Multiplying both probabilities will give us 7/290

(2) P that number is 19 is 1/30
      P that the number is multiple by 4 is 6/29
The answer is 1/145

(3) P that number is 24 is 1/30
      P that number is less than 15 is 14/29
The answer should be 7/435.

(4) P that number 1st number is perfect square is 5/30
   P that second number is perfect square is 4/29.
The answer is 2/87. 
You might be interested in
-2 (Y-1) =8<br>what is Y( I thought it was 11 but it's not)
soldi70 [24.7K]

Answer:

Y=-3

Have a good day and please mark brainliest

Step-by-step explanation:

3 0
3 years ago
I have no clue how to start this problem,plz help
Maksim231197 [3]

9514 1404 393

Answer:

  109°

Step-by-step explanation:

You always start a problem by taking a careful look at the information given and how it relates to what is asked. Here, the key information is in the symbols marking the lines PQ and RS. They are parallel.

This means segments QR and PS are transversals. Marked angle 41° will be an "alternate interior angle" with angle TPQ, so angle TPQ is also 41°.

The desired angle, PTR, is an exterior angle to ΔQTP, so its measure is the sum of remote interior angles TQP (68°) and TPQ (41°). That is, ...

  ∠PTR = ∠TQP +∠TPQ = 68° +41°

  ∠PTR = 109°

6 0
2 years ago
-3x-7 ≤11<br> solve, please
Rom4ik [11]

Answer:

x ≥ -6

Step-by-step explanation:

-3x-7 ≤ 11

-3x-7+7 ≤ 11+7

-3x ≤ 18

(-3x)(1) ≤ 18(-1)

3x ≤ -183x/3 ≤ -18/3

7 0
3 years ago
A farmer estimates that he has 9,000 bees producing honey on his farm. The farmer becomes concerned when he realizes the populat
djverab [1.8K]

Answer:

  • The function f(x) = 9,000(0.95)^x represents the situation.
  • After 2 years, the farmer can estimate that there will be about 8,120 bees remaining.
  • The range values, in the context of the situation, are limited to whole number

Step-by-step explanation:

The "growth" rate is -5%, so the growth factor, the base in the exponential equation, is 1.00-5% =0.95.

Using x=2, we find the population in 2 years is expected to be about ...

  f(2) = 9000·0.95^2 ≈ 8123 . . . . about 8120

Using x=4, we find the population in 4 years is expected to be about ...

  f(4) = 9000·0.95^4 ≈ 7331 . . . . about 7330

Since population is whole numbers of bees, the range of the function is limited to whole numbers.

The domain of the function is numbers of years. Years can be divided into fractions as small as you want, so the domain is not limited to whole numbers.

The choices listed above are applicable to the situation described.

7 0
3 years ago
I need help with this if someone could help me
Elodia [21]

Answer:

SSA (SIDE, ANGLE, SIDE)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • The unit rate of change of yyy with respect to xxx is the amount yyy changes for a change of one unit in xxx.
    12·2 answers
  • Blue pens green pens red pens in a box
    6·1 answer
  • Factor x2−15x+50 .<br><br> plz help!
    13·1 answer
  • A bag with 2 1/2 ounces of peanuts can make 2⁄3 of a jar of peanut butter. How many ounces are needed to fill the whole jar? The
    7·1 answer
  • Twice the sum of a number and 2 is equal to three times the difference of the number and 7.Find the number.
    14·1 answer
  • At the city Museum child omission is $5.70 and adult admission is $9.80. On Tuesday 124 tickets were sold for a total sales of $
    8·1 answer
  • It took John 12 hours riding his bike to make the round trip to his uncle's. If he averaged 20 mph out and 30 mph back, how long
    8·2 answers
  • A flagpole casts a 13-foot shadow on the ground when the sun is at a 68° angle of elevation.
    5·1 answer
  • Of the pebbles that were measured which weight occurs the least?
    8·1 answer
  • What is the value of each digit in 312.054
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!