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
gtnhenbr [62]
4 years ago
5

The probability of shopping as Shoprite supermarket is 60% while that of shopping at Pick and Pay is 40%. If the shopper goes sh

opping eight times, what is the probability of
A. Shopping at least three times at Shoprite supermarket
B. Shopping at most three times at Pick and Pay supermarket.
C. Shopping at one supermarket​
SAT
1 answer:
My name is Ann [436]4 years ago
5 0

Answer:

know i now why you need help i literlly spent 2 hours on the question sorry

Explanation:

You might be interested in
If r is more than six times____ significant​
WINSTONCH [101]

Answer:

more?

Explanation:

5 0
3 years ago
what is the hydronium ion concentration of a solution with a poh of 6.90? 6.29 × 10−7 m 6.53 × 10−7 m 7.18 × 10−8 m 7.94 × 10−8
iren2701 [21]

The hydronium ion concentration of the solution with given value of pOH is 7.94 × 10⁻⁸M.

Option D) is the correct answer.

<h3>What is pH of solution?</h3>

The pH of a solution is defined as the logarithm of the reciprocal of the hydrogen ion concentration  [H+] of the given solution.

From the formular;

pH = -log[ H⁺ ]

pH + pOH = 14

Given that;

  • pOH =  6.90
  • Hydronium ion concentration OH⁻ = ?

First we find the pH

pH + pOH = 14

pH + 6.90 = 14

pH = 14 - 6.90

pH = 7.1

Now, from the above expression;

pH = -log[ H⁺ ]

Hence;

[ H⁺] = 10^(-pH)

[ H⁺] = 10^(-7.1)

[ H⁺] = 7.94 × 10⁻⁸M

Therefore, the hydronium ion concentration of the solution with given value of pOH is 7.94 × 10⁻⁸M.

Option D) is the correct answer.

Learn more about pH & pOH here: brainly.com/question/17144456

#SPJ1

3 0
2 years ago
Which careers rely heavily on hard skills?
ale4655 [162]
Any temp agencies or factory work
6 0
4 years ago
What does it mean if ur crush calls u shawty?
Hitman42 [59]
That basically means they love you
8 0
3 years ago
Read 2 more answers
a helicopter flies parallel to the ground at an altitude of 1/2 kilometer and at a speed of 2 kilometers per minute. if the heli
Murrr4er [49]

The Pythagoras' theorem and the uniform motion allows to find the answer for the rate of change of distance is

               v = 32.3 m / s

The distance is the length of the segment that a white house wing with the helicopter, this can be found using the Pythagoras' theorem

               R = \sqrt{x^2 + y^2}

Where R is the distance, x is the horizontal distance where the helicopter flies and y is the vertical distance that corresponds to the flight height

y = 500 m

Since the helicopter flies at constant speed, we can use the uniform motion relation

              v_h = \frac{x}{t}

              x = v_ht

Where v_h is the speed of the helicopter and t is the time

We substitute  

                r = \sqrt {(V_h \ t)^2 + y^2}

Kinematics defines velocity as the change of position in the unit of time

            v = \frac{dR}{dt}

           v = \frac{1}{2} \  \frac{2 ( v_h t) v_h}{ \sqrt{(v_h t)^2 + y^2} }

           v = \frac{v_h^2 \ t}{ \sqrt{(v_h t)^2 + y^2} }

This expression is the change in distance as a function of time for a given speed. In the exercise, this speed is requested for a time of one minute, for the helicopter speed of

        v = 2km/min (\frac{1000m}{1km} ) ( \frac{1 min}{60s}) = 33.33 m / s

Let's calculate

            v = \frac{33.33^2 \ 60 }{ \sqrt{ )33.3 \ 60)^2 +500^2} }

         

            v = 32.3 m / s

In conclusion using the Pythagoras' theorem and the uniform motion we can find the answer for the rate of change in distance is

               v = 32.3 m / s

Learn more here: brainly.com/question/343682

4 0
3 years ago
Other questions:
  • 4. The purpose of an experiment is to gather data to determine if the
    15·1 answer
  • One method you can use to encourage positive communication is: "I" messages you messages blaming mixed messages
    8·1 answer
  • Mkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
    5·2 answers
  • Quickly answer to get brainly
    7·2 answers
  • Which is the correct formula unit for sodium chloride.
    14·1 answer
  • Four bricks of length l, identical and uniform, are stacked on top of one another (the figure) in such a way that part of each e
    15·1 answer
  • Checking temperatures with a cleaned and sanitized thermometer complies with which haccp principle
    15·1 answer
  • How can i get illuminate answekeys
    15·1 answer
  • How do you develop an effective content distribution strategy
    15·1 answer
  • The price index was 120 in Year 1 and 126 in Year 2. What was the inflation rate
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!