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
seraphim [82]
3 years ago
6

Based on a smartphone​ survey, assume that ​58% of adults with smartphones use them in theaters. In a separate survey of 225 adu

lts with​ smartphones, it is found that 114 use them in theaters.
a. If the 58​% rate is​ correct, find the probability of getting 114 or fewer smartphone owners who use them in theaters.
b. Is the result of 114 significantly​ low?
Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
8 0

Answer:

b

Step-by-step explanation:

You might be interested in
If your friend leaves your house at a speed of 8mph and two hours later you follow in your car at 40mph, how long will It be bef
dusya [7]

Answer:

  • 1/2 hour
  • 20 miles

Step-by-step explanation:

Your friend has a head start of (2 h)×(8 mi/h) = 16 mi.

When you leave, you gain on your friend at the rate of 40 mph - 8 mph = 32 mph. So, it will take ...

  (16 mi)/(32 mi/h) = 1/2 h

for you to reduce the distance between you to zero.

In that 1/2 hour, you have traveled ...

  (1/2 h)×(40 mi/h) = 20 mi

__

This is the same distance your friend has traveled in 2.5 hours at 8 mi/h.

3 0
3 years ago
Which boxes do I select?
AysviL [449]

Answer: true then fauls

8 0
3 years ago
A cabinet door is 13 inches wide and has an area of 260 inches. Use the formula A=lw. How tall is the cabinet door?
klio [65]

Answer:

20

Step-by-step explanation:

260/13=20

ppssddssffff

8 0
3 years ago
The Lees have 3 children. The oldest is twice as old as the youngest. The middle is 5 years older than the youngest. If the sum
valina [46]
Oldest = 2 times Youngest -> O = 2*Y
Middle = Youngest + 5 -> M = Y+5
All of them together is 57 -> O + M + Y = 57

So you have these three equations:
(1) O = 2*Y
(2) M = Y+5
(3) O + M + Y = 57

Now you want to reduce the number of variables. You can change the second equation to be Y = M-5 and then plug in "M-5" wherever there is currently a Y:

(4) O = 2*(M-5) = 2*M - 10
(5) O + M + (M-5) = 57 
    which becomes O + 2M = 62

Then you plug in the "O" equation (4) into (5) which gives you
(2M-10) + 2M = 62 which reduces to 4M = 72.

So now I know M is 18. 
I can now plug that into my other equations:
(4) O = 2*18 - 10 which means O = 26.
Now I plug that into (1) from the top:
26 = 2*Y which becomes 13 = Y

So now I have O, Y, and M
Oldest is 26
Middle is 18
Youngest is 13

Reading the sentence again, you can see that this makes sense. 


4 0
3 years ago
Read 2 more answers
Sean can spend at most $15.00 on snacks. He has ailready spent s5.00. which inequality could be solved to determine how much mon
liq [111]

Answer:

https://cougar.collegiate-va.org/cfoster/Mrs._Fosters_Classes/Algebra_1_files/0437_001.pdf

Step-by-step explanation: go to the 3rd page of link


7 0
3 years ago
Other questions:
  • If the diagonals of a parallelogram are congruent and are perpendicular bisectors of each other than what is it
    14·1 answer
  • In six months, 33.6 gallons were used. Find the unit rate.
    10·1 answer
  • A number cube labeled 1 - 6 is rolled. Write in answer in fraction form.
    12·1 answer
  • You need to fill up a 5 gallon drum of liquid product. The drum currently has 1.5 gallons of liquid inside. How much more liquid
    7·2 answers
  • Complete the table. Original Price Percent 112 of Discount 32% Sale Price
    10·1 answer
  • Combine like terms to simplify the expression:<br> 3x + 5 + 4x − 2 + 7x
    14·2 answers
  • Are the following rational or irrational?
    6·1 answer
  • The sum of an acute angle and an obtuse angle is an acute angle always sometimes or never true ???​
    13·2 answers
  • 13. You buy a new monitor for your desktop computer for $295. The store charges 9% in sales tax. How much sales tax is added to
    11·1 answer
  • Need Help ASAP <br><br> How many weeks will it take to save $150 if I save $2.50 per week?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!