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
Otrada [13]
3 years ago
15

What is the probability of obtaining three heads while flipping a coin

Mathematics
1 answer:
Elina [12.6K]3 years ago
3 0

<span>
The probability of at least three heads can be found by<span><span>∑<span>k=3</span>4</span><span>(<span>4k</span>)</span><span>.5k</span><span>.5<span>4−k</span></span>=<span>516</span></span></span>
You might be interested in
Find the area of each shape, please help and I will give a lot points
Alex73 [517]

Answer:

15. Area of parallelogram = bh

    b = 9m

    h = 4m

    a = 9*4 = 36m^2

   You can also use the rectangle property here.

    a = l*b

    l = 9

    b = 6

    a = 9*6 = 54 m^2

    Though I would prefer the first one better.

16. Area of triangle = 1/2*bh

    b = 17m

    h = 3

    a = 17*3/2 = 51/2 = 25.5m^2

18. Area of a trapezium = a+b/2*h (a and b are two parallel sides and h the            height)

a = 15

b = 7

h = 15

a = 15+7/2*15 = 22/2*15 = 11*15 = 165m^2

19. Area of triangle = 1/2*bh

    b = 24

    h = 7

    a = 24*7/2 = 168/2 = 84

Hope u understood

Please mark as brainliest

Thank You

5 0
3 years ago
Pls help me this question is bad
musickatia [10]

Answer:

using law of indices

the answer is 1

8 0
2 years ago
Multiply (-6 + i)(-2 + 9i).
malfutka [58]

Answer:

b

Step-by-step explanation:

go with that and you may win at this multiply question

4 0
3 years ago
Read 2 more answers
Assume that military aircraft use ejection seats designed for men weighing between 141.8 lb and 218 lb. If​ women's weights are
Mariulka [41]

Answer:

P(141.8

And we can find this probability with this difference and using the normal standard table:

P(-0.639

Then the answer would be approximately 55.3% of women between the specifications. And that represent more than the half of women

Step-by-step explanation:

Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:

X \sim N(173.6,49.8)  

Where \mu=173.6 and \sigma=49.8

We are interested on this probability

P(141.8

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(141.8

And we can find this probability with this difference and using the normal standard table:

P(-0.639

Then the answer would be approximately 55.3% of women between the specifications. And that represent more than the half of women

8 0
3 years ago
Please show how to compute these values. Thank you.
alekssr [168]

Answer: ln ( 40) *100

Step-by-step explanation:

Substituting 140 in the equation,

140 = 100 + e^(.01q)

40 = e^(.01q)

Take the natural log of bot hsides

ln ( 40) = .01q

q= ln ( 40 ) * 100

6 0
3 years ago
Other questions:
  • Lcm and gcf of 27 and 45
    12·1 answer
  • Can y’all help pls jfhzfhR
    13·1 answer
  • ❗️ASKED ONCE AND NO ONE ANSWERED, WILL MARK BRAINLIEST,,,,,,,,,,❗️. Five men and eight women work in a firm’s PR office. Their e
    10·2 answers
  • A triangle with no equal sides is called a scalene triangle, right? or no
    5·2 answers
  • Eddie has 1 2 4 cups of tomato sauce in his pantry. The spaghetti sauce he is preparing requires 2 4 8 cups. How much more tomat
    11·2 answers
  • Most atms require that you enter a four-digit code, using the digits 0 to 9. how many four-digit codes are available?
    11·2 answers
  • Please help me with this SHOW WORK ON PAPER
    15·2 answers
  • What is the product of 4x2y and 2xy3
    14·1 answer
  • A race car is traveling at a constant speed of 200 miles per hour ( mph). How many miles will it travel in three hours?
    12·2 answers
  • You are the crew chief of the Algebra 2 formula racing team. Your current tasla is to determine fuel consumption of both cars. C
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!