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
elena55 [62]
2 years ago
7

SOMEONE HELP PLEASE (DO IT RIGHT AND INCLUDE STEP BY STEP EXPLANATION SO I COULD UNDERSTAND HOW TO DO IT LMA.O)

Mathematics
1 answer:
ololo11 [35]2 years ago
5 0

Answer:

The probability is 1/8 or 0.125.

Step-by-step explanation:

Given is that three fair coins are flipped.

And we have to find the probability of getting a head on the first flip,a tail on the second flip, and another head on the third flip.

Firstly, here each flip is independent of the outcome of the other flips.

So, the probability of head is 1/2 and the probability of tail is 1/2.

Therefore, the answer will be : (1/2) (1/2) (1/2)=8

You might be interested in
A rectangle has a length that is increasing at a rate of 10 mm per second with the width being held constant. What is the rate o
NISA [10]

Answer:

the rate of change of the area is Ra= 80 mm² per second

Step-by-step explanation:

the area of a rectangle (A) is

A = L * W , L= length and W= width

if the width remains constant the change in the area is only due to the change in length , thus:

ΔA = Δ( L * W ) = W * ΔL , where ΔA represents the change in area and ΔL represents the change in length

ΔA = W ΔL

denoting Δt as the time required to change, and dividing both sides by Δt

ΔA/Δt = W ΔL/Δt

where Ra=ΔA/Δt = rate of change of the area and RL=ΔL/Δt rate of change of the length.

thus

Ra = W * RL

replacing values

Ra = W * RL = 8 mm * 10 mm/second = 80 mm² /second

6 0
2 years ago
Orange M&M’s: The M&M’s web site says that 20% of milk chocolate M&M’s are orange. Let’s assume this is true and set
SOVA2 [1]

Answer:

The correct option is (A).

Step-by-step explanation:

Let <em>X</em> = number of orange  milk chocolate M&M’s.

The proportion of orange milk chocolate M&M’s is, <em>p</em> = 0.20.

The number of candies in a small bag of milk chocolate M&M’s is, <em>n</em> = 55.

The event of an milk chocolate M&M being orange is independent of the other candies.

The random variable <em>X</em> follows a Binomial distribution with parameter <em>n</em> = 55 and <em>p</em> = 0.20.

The expected value of a Binomial random variable is:

E(X)=np

Compute the expected number of orange  milk chocolate M&M’s in a bag of 55 candies as follows:

E(X)=np

         =55\times 0.20\\=11

It is provided that in a randomly selected bag of milk chocolate M&M's there were 14 orange ones, i.e. the proportion of orange milk chocolate M&M's in a random bag was 25.5%.

This proportion is not surprising.

This is because the average number of orange milk chocolate M&M’s in a bag of 55 candies is expected to be 11. So, if a bag has 14 orange milk chocolate M&M’s it is not unusual at all.

All unusual events have a very low probability, i.e. less than 0.05.

Compute the probability of P (X ≥ 14) as follows:

P(X\geq 14)=\sum\limits^{55}_{x=14}{{55\choose x}0.20^{x}(1-0.20)^{55-x}}

                 =0.1968

The probability of having 14 or more orange candies in a bag of milk chocolate M&M’s is 0.1968.

This probability is quite larger than 0.05.

Thus, the correct option is (A).

4 0
3 years ago
Hershey Foods makes a batch of chocolate with 75 lbs. of cocoa beans. If we know what that the ratio of cocoa beans to milk is 5
spayn [35]

try 60 becasue 75/5 is 15 so I multiplyied 4x15 and got 60

8 0
3 years ago
Find the total mass of the triangular region shown below. All lengths are in cm, and the density of the region is sigma(x) = 1 +
anastassius [24]

Answer:

3 grams

Step-by-step explanation:

We are going to take the mass of a bunch of little strips below the triangle "roof." To do this, we must figure out what formula for the mass we'll use, in this case, we'll use:

Mass of strip = denisty * area = (1+x)*y*deltax grams

now, because the "roof" of the triangle contains two different integrals (it completely changes direction), we will use TWO integrals!

**pretend ∈ is the sum symbol

Mass of left part = lim x->0 ∈ (1+x)*y*deltax = inegral -1 to 0 of (1+x)*3*(x+1) = 3 * integral -1 to 0 of (x^2 + 2x + 1) = 3 *  1/3 = 1

Mass of left part = lim x->0 ∈ (1+x)*y*deltax = inegral 0 to 1 of (1+x)*3*(-x+1) = 3 * integral 0 to 1 of (-x^2 + 1) = 3 * 2/3 = 2

Total mass = mass left + mass right = 1 + 2 = 3 grams

8 0
3 years ago
Why is there no tutor​
pickupchik [31]
I think you have to follow someone and ask them to be your tutor.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Old macdonald looked out his window and saw some cows and chickens. there were a total of 28 animals and 74 legs. assuming that
    14·1 answer
  • The formula for the volume V of a rectangular prism is V = ℓwh, where ℓ represents the length, w represents the width, and h rep
    12·1 answer
  • Can somebody please solve question 11 for me?
    14·1 answer
  • Which equation models the rational function show in the graph
    10·2 answers
  • Please help me with this I will mark brainlist if you answer correctly. (I will know if you answer correctly or not)
    15·1 answer
  • HELP ASAP PLEASE
    13·2 answers
  • Which unit rate is the lowest price per ounce? (5 points)
    6·1 answer
  • Pls can anyone help with this with clear steps​
    10·2 answers
  • Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage r
    8·1 answer
  • step right up for a new brainiest fair answer the question you get right you win the glorious brainiest
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!