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
kotykmax [81]
3 years ago
8

The letter tiles shown below are in a bag. Without looking i am going to draw one tile.

Mathematics
2 answers:
TiliK225 [7]3 years ago
8 0
D. 0.75 is the correct answer 

explanation- 2 out of the 8 tiles are not blue A. so 6 out of 8 tiles would round equal 75% chance of not getting a blue A tile 

<span />
Aleonysh [2.5K]3 years ago
5 0
D is the right one hope that helps I
You might be interested in
How many solutions are there to the quadratic equation
Ray Of Light [21]

Answer:

2

Step-by-step explanation:

(-7)^2  -  4*3 *(-2) =   49 + 24  >0

discriminant is positive so 2 real roots

8 0
3 years ago
14. a house-painting company charges 376$ plus 12$ an hour. Another painting company charges 280$ plus 15$ an hour.
Art [367]
One company charges:
$376 + $12*h

Other company charges:
$280 + $15*h

They will both charge the same when:

$376 + $12*h = $280 + $15*h

96 = 3*h

hours = 32
Cost will be $760

Double Check
$376 + $12 * 32 hours = $760

$280 + $15 * 32 hours = $760


5 0
3 years ago
Area of a parallelogram if it was 2 cm and 6 cm
Contact [7]
You just multiply 2 times 6 which is 12 

so 12 cm is your answer
7 0
3 years ago
In a program designed to help patients stop smoking. 192 patients were given to sustained care, and 80.2% of them were no longer
stira [4]

Answer:

We conclude that 80% of patients stop smoking when given sustained care.

Step-by-step explanation:

We are given that in a program designed to help patients stop smoking. 192 patients were given to sustained care, and 80.2% of them were no longer smoking after one month.

Let p = <u><em>percentage of patients stop smoking when given sustained care.</em></u>

So, Null Hypothesis, H_0 : p = 80%     {means that 80% of patients stop smoking when given sustained care}

Alternate Hypothesis, H_A : p \neq 80%     {means that different from 80% of patients stop smoking when given sustained care}

The test statistics that would be used here <u>One-sample z test for proportions</u>;

                        T.S. =  \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }  ~ N(0,1)

where, \hat p = sample proportion of patients who stop smoking when given sustained care = 80.2%

           n = sample of patients = 192

So, <u><em>the test statistics</em></u>  =  \frac{0.802-0.80}{\sqrt{\frac{0.802(1-0.802)}{192} } }

                                     =  0.07

The value of z test statistics is 0.07.

<u></u>

<u>Also, P-value of the test statistics is given by the following formula;</u>

                P-value = P(Z > 0.07) = 1 - P(Z \leq 0.07)

                              = 1 - 0.52790 = 0.4721

<u>Now, at 0.05 significance level the z table gives critical values of -1.96 and 1.96 for two-tailed test.</u>

Since our test statistic lies within the range of critical values of z, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which <u>we fail to reject our null hypothesis</u>.

Therefore, we conclude that 80% of patients stop smoking when given sustained care.

8 0
3 years ago
Wath is the rate and ratio for 3.5hrs and 27 miles and 4 hrs
erastovalidia [21]

Answer:

Hello

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • The formula for the circumference of a circle is C = 2πr, where r is the radius. Rearrange the formula to solve for r and select
    13·2 answers
  • What is 6/10 rounded to the nearest half
    6·1 answer
  • Yesterday stock in chambers translation sold for $87.19 per share. Today, the same share costs $95.45. How would the net change
    13·2 answers
  • Yin is making a map of his town. On the map, the distance between the sporting goods store and the market is 4 inches. The actua
    14·2 answers
  • Which of the following demonstrates the Commutative Property of Multiplication?
    5·1 answer
  • Hi! May I please have some help?
    7·2 answers
  • Solve the equation 1/2x=5/2x-3
    7·2 answers
  • Please answer quickly! I will mark you as brainliest! I have a timed quizz Which expression is equivalent to p q?
    8·2 answers
  • PLZ HELP NOW I WILL GIVE BRAINLIEST!
    9·1 answer
  • A graduate student is designing a research study. She is hoping to show that the results of an experiment are statistically sign
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!