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
sesenic [268]
3 years ago
13

Which expressions can you use to find 75% of 56? CHECK ALL THAT APPLY

Mathematics
1 answer:
san4es73 [151]3 years ago
4 0

Answer: 3/4* 56, 0.75 * 56, 3 * 14 I just did the quiz on it

You might be interested in
Determine the Domain and Range for promblems 1 and 2.
Nimfa-mama [501]

Answer:

<u>Nvgjvfknh</u>

Step-by-step explanation:

3 0
2 years ago
A randomized controlled study was designed to test whether regular drinking of cranberry juice can prevent the recurrence of uri
Kamila [148]

Answer:

1. The chi-squared statistic = 10.36

The degrees of freedom = 17

The p-value for the test = 0.89

2. The range of the p-value from the Chi squared table = 0.75 < p-value < 0.90

Step-by-step explanation:

1. The Chi squared test is given as follows;

\chi ^{2} = \sum \dfrac{\left (Observed - Expected  \right )^{2}}{Expected  }

Therefore,

                              UTI   No UTI    %     Total

Cranberry juice       8           42      84     50

Lactobacillus          19          30       61     49

Control                    18          30      60    50

The chi-squared statistic is given as follows;

\chi ^{2} = \dfrac{\left (8- 18\right )^{2}}{18} +  \dfrac{\left (42 - 30\right )^{2}}{30} = 10.36

The chi-squared statistic = 10.36

The degrees of freedom, df = 18 - 1 = 17 since the all of the expected count have a minimum value of 18

With the aid of the calculator we find the p value as p as follows;

p = 0.9 - \dfrac{10.36 - 10.085}{12.972 - 10.085} \times (0.9 - 0.75)

The p-value for the test = 0.89  

2. The range of the p-value from the Chi squared table is given as follows;

0.75 < p-value < 0.90.

5 0
3 years ago
The ratio of 10 to pencil is 2/7 if you count 84 pencil how many pain would you expect to find
frosja888 [35]
How much pain would you find?   hopefully none, since you'd have lots of pens and pencils :).

\bf \cfrac{pens}{pencils}\qquad \cfrac{2}{7}\qquad 2:7\qquad \qquad \cfrac{\stackrel{pens}{p}}{\stackrel{pencils}{84}}=\cfrac{2}{7}\implies p=\cfrac{84\cdot 2}{7}
6 0
3 years ago
Find the mean, median, and mode of the listed numbers.
-BARSIC- [3]

Step-by-step explanation:

mean: (3 + 2 + 7 + 7 + 3 + 8 + 5 + 7 + 2 +8)/10 = 5.2

median: 2, 2, 3, 3, 5, 7, 7, 7, 8, 8 hence median is (5 + 7) / 2 = 6

mode: 7

Topic: mean median mode

If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!

3 0
2 years ago
For the functions f(x)=x4−x3−7x2+9x−2 and g(x)=x−1, find (f/g)(x) and (f/g)(2).
Fed [463]

Answer:

(f/g)(x) = x³ - 7x + 2

(f/g)(2) = -4

Step-by-step explanation:

To find (f/g)(x), divide f(x) by g(x).  The process is shown in the attached image.

(f/g)(x) = x³ - 7x + 2

To find (f/g)(2), plug in 2 wherever there is an x.

(f/g)(x) = x³ - 7x + 2

(f/g)(2) = (2)³ - 7(2) + 2

(f/g)(2) = 8 - 14 + 2

(f/g)(2) = -6 + 2

(f/g)(2) = -4

4 0
3 years ago
Other questions:
  • Raina makes eight dollars for each hour of work. Write an equation to represent her total pay p after working h hours
    14·2 answers
  • C)<br> A bus drives for 372 hours at an average speed of 56 mph.<br> How far does the bus drive?
    14·2 answers
  • Layla used 0.482 grams of salt in her experiment. Maurcie use 0.51 grams of salt. Who used the greater amount of salt?
    10·2 answers
  • Is this correct or Incorrect? Explain
    13·1 answer
  • Determine the equation of the circle graphed below. <br><br> ( please help me )
    15·1 answer
  • What is the factored form of this expression? 2x^3+5x^2+6x+15
    5·1 answer
  • the hu family goes out for lunch, and the price of the meal is $43. The sales tax on the meal is 6%, and the family also leaves
    13·1 answer
  • Which equations are equivalent to y = two-thirds x minus 4 when written in slope-intercept form? Check all that apply.
    14·2 answers
  • What is the distance between -60 and -10 0n a number line?
    8·1 answer
  • Arborists use the diameter of a tree trunk to predict the age of a tree. The following computer output and residual plot
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!