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
Tpy6a [65]
3 years ago
12

Dawn draws 1 card, replaces it, and draws another card. Is it more likely that she draws 2 red cards or 2 face cards? Can someon

e help me with this?
Mathematics
1 answer:
Llana [10]3 years ago
3 0
Red card because it is a fifty fifty chance for the colors but a 3 in 10 chance for a face card
You might be interested in
I'm in desperate need for help whoever does gets 30 points
mote1985 [20]

It would be: ∅/360 * πr²

here, ∅ = 120

= 120/360 * 3.14*(3)²

=9.42 m²

4 0
3 years ago
a rectangle has a length 3 meters more than three times the width. the area of the rectangle is less than 90 meters squared. wri
Natasha2012 [34]

Answer: -6<x<5

Step-by-step explanation:

Given

Length is 3 m more than three times the width

Suppose width is x

So, the length is 3x+3

The area of a rectangle is  length\times width

Area= (3x+3)x

\Rightarrow 3x^2+3x-90

6 0
3 years ago
19. At a restaurant. Levy's total bill is $46.
ale4655 [162]
Answer:

D

Explanation:

46(0.15)=6.9
6 0
3 years ago
3. A team of eye surgeons has developed a new technique for a risky eye operation to restore the
Zigmanuir [339]

Answer:

Yes the new method if sample size was less than 20 than that of old method or identical sample numbers of old and new the differences still prove the new operation is better. As 88 patients minus 1% still shows us 76.7475 significance of  old method being low point 67.5 = 30% of 225 and proved a 65.25 low point and 69.75 high point which is also a 20% jump to new methods low point significance.

You cna show this as workings to prove or follow any of the below statements.

Where new method of 88 patients -0.01 significance rate stands at 76.7475. This figure has reduced by 11.2525 from 88 patients to 76.7 we compare this to the old method if reversing significance we find  = 62.5 and it's 30% standing value of 67.5  as +1% increase shows us 31% = 69.7  ( 0.31 x 225 = 69.74)

Step-by-step explanation:

88/225  = 0.39111111111 = 39.11%%

P value 01 = 1%  =  225.225 or 5% range of alternative hypotheses.

To graph the P value we take the distance between the sample mean and the null hypothesis value (225 + 1% of sample - x nhv) = y ). We can graph the probability of obtaining a sample mean  (225 +/- ( x +1% of sample) where nhv has a decimal if needed to utilize the 1% added). we would replace nvp in this example with  Ha or H1 which means the alternative hypotheses as the data shows less than or equal to.

We can then show 225.225 -  Ha or H1  then graph the probability of obtaining a sample mean that is at least extreme in both tails  Ha or H1

However it would be the other way round where you take the first set of data and use the sample as the 30% significance of that sample indicates it may be a larger sample or a higher significance. Therefore this would be used in the graphing - 1%

We prove that 30-1 =29  where 29% of 225 = 225 x 0.29 = 65.25

this way we have proved that the new set of data being equal to 88 patients regaining their eyesight is <23 and can be written like this 65.25< x <88

This means that sample mean has taken the 1% to show on the graph we can show 225> 33.11 +1 .

We can prove that both indifference of significance would reduce when 1% is added and close based on being a higher percentage to begin with.

34.11 = 0.3411 x 225 = 76.7475 for second surgeon = 33.11% +1

Where as shown

30 = 0.3 x 225 = 67.5

76.5475 - 67.5 = 9.04 difference when comparing old method = +1%

where new method stands at 76.7475 has reduced by 11.2525 from 88 patients and where old method if reversing = 62.5 and has reduced from 67.5  as +1% and 31% = 69.7  ( 0.31 x 225 = 69.74)

You would therefore graph each higher methods first if comparing both by 0.01 or show 88 on graph and 76.7475 = +1%

NB/ if sample size was 20 more in the old data then 225+20 = 245 x 0.29 = 71.05 and would still be lower than new data. = 2.0 increase level of significance and not relevant unless you are looking for the decrease which means new is greater than 20% success than that of old method findings where 30% = 67.5.

5 0
3 years ago
Tell whether each function is linear or non-linear.
MrMuchimi

Answer:

Function A is non-linear and Function B is linear.

Step-by-step explanation:

Linear function:

Has the following format:

y = mx + b

In which m is the slope and b is the y-intercept.

In a linear function, when x changes by 1, y will always changes by the same amount.

Function A:

When x changes by 1, y can change by various amounts. So function A is non-linear.

Function B:

y = -x + 5

In the format of a linear function, so linear

3 0
2 years ago
Other questions:
  • How do you write 250% as a fraction, mixed number, or whole number in simplest form?
    8·1 answer
  • Plz help as soon as posible
    6·1 answer
  • Can somebody please explain how to do this?
    7·2 answers
  • A company logo is made up of a square and three identical triangles.
    10·1 answer
  • Find the integer pair that has the product of -65 and the sum of -8
    8·2 answers
  • An ice cream parlor sells milkshakes in various sizes:
    13·1 answer
  • Someone please help T.T I need help ASAP
    11·1 answer
  • Please help!!! (pic included)
    7·1 answer
  • Find many ways of arranging 24 counters in equal rows as you can. Write a multiplication sentence for each way
    14·1 answer
  • 7x+2-4x=23 solve for x PLEASE HELP ME<br><br> PLEASE SHOW THE WORK TYY
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!