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
AlekseyPX
3 years ago
7

I WILL GIVE AN EXTRA 50 POINTS TO WHOEVER GETS THESE 2 QUESTIONS RIGHT

Mathematics
1 answer:
nikdorinn [45]3 years ago
4 0

Answer:

See below for answers and explanations

Step-by-step explanation:

<u>Problem 1:</u>

A standard deck of cards contains 52 cards, consisting of 13 spades. If you select only one randomly, the probability of that occurring would be 13/52 or 1/4. Since there are only 26 red cards in a standard deck, then the probability of selecting a red card would be 26/52 or 1/2. Because the two events are independent of each other, their probabilities are multiplied. Therefore, the probability of selecting a spade, and then replacing it in hopes of drawing a red card is (1/2)(1/4) = 1/8.

<u>Problem 2:</u>

We are selecting a spade and then another spade while NOT replacing the first spade (remember that these events are independent of each other also). This means that the total card count will change by picking up the second card. Therefore, the probability of selecting a spade, followed by another spade, is (13/52)(12/51) = 156/2652 = 1/17.

You might be interested in
Gavin spent $35.45 on four pairs Jeans each pair of Jean cost the same amount. Gavin wanted to find the price for each pair of j
Ksivusya [100]

Answer:

Each pair costs $8.86

Step-by-step explanation:

Divide 35.45 by 4

You get 8.8625

Round that to the nearest hundredth.

You get $8.86

Hope this helped!

7 0
3 years ago
Simplify (5i-2i) (2+6i)-(4-i) show all work​
suter [353]

↝ (3i)(2+6i)-(4-i)

↝ 6i+18i²-4+i

↝ 6i-18-4+i [ i² = -1]

Therefore, it's 7i-22

5 0
2 years ago
What are the qualification of? 0.3%
KIM [24]

Answer:

30

Step-by-step explanation:

4 0
2 years ago
Please help me, and please show your work if possible! Thanks friends! ❤️
eimsori [14]
12 bushes in garden 1
4 0
3 years ago
Given: Parallelogram ABCD,
andreyandreev [35.5K]

Answer:

a. m DCB =<DAB=120 opposite angle of the parallelogram are equal

again

BP=PD diagonal bisect it

3x+7=-x+17

3x+x=17-7

4x=10

x=10/4=5/2

b. BD =3x+7-x+17=3×5/2+7-5/2+17=2×5/2+24=5+24=29

4 0
2 years ago
Other questions:
  • What two numbers multiplies to 36 and add to negative 21
    13·1 answer
  • 15x - 10 = -9x + 2 <br> please help me !!!!!
    15·1 answer
  • 12 inch candle and 18 inch candle lit at 7 pm . 12 inch candle burns 0.5 inch every hour . 18 inch candle burn 2 inch every hour
    12·2 answers
  • HELP ASAP IT'S AN EMERGENCY​
    5·1 answer
  • The hypotenuse of a 30°-60°-90°
    11·1 answer
  • Please help
    14·2 answers
  • Jordan Beaver raised 30% of his goal. His goal<br> was $70. How much money did he raise?
    9·2 answers
  • What is 12+45(3-8) because I’m confused plz help
    7·2 answers
  • 1. The diagonal of a quadrilateral
    14·1 answer
  • Please help me!<br> [One Step Inequalities]
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!