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olasank [31]
1 year ago
3

Sofia is a helper for the kindergarten class and is in charge of picking a video for their end-of-year party. To choose which ty

pe of movie they would like best, she decided to survey every other child entering a matinee for a cartoon called, “Three Pretty Princesses.” The total number of children surveyed was 40. What is wrong with the way she selected her sample? Check all that apply. ill give brainliest to whoever answers
Mathematics
2 answers:
leonid [27]1 year ago
5 0

Answer:

She decided to survey each other child instead of every child

Step-by-step explanation:

Sorry if im wrong

AfilCa [17]1 year ago
4 0

Answer:

so if you have a multie chose it would be A D E

Step-by-step explanation:

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George still has 40 percent of his book to read. If George has read 180 pages, how many pages does he still have to read? How do
beks73 [17]

Answer:  72

Step-by-step explanation:    so you do a line = line method the lines should look like they are fractions.  

you do it for the both numbers the percent is always out of 100.

it should look like this

40%            ?

--------- = -----------    

100%       180

then you cross multiply 40 and 180 and than divide it by 100.   your answer should be 72.    you later replace the ? with 72

you know this because It is smaller than 180 and its bigger than the number 40.

5 0
2 years ago
Write 1.024242424 as a fraction
Dafna1 [17]
Your answer would be 1\frac{24}{990}
4 0
2 years ago
Read 2 more answers
A local fraternity is conducting a raffle where 55 tickets are to be sold—one per customer. There are three prizes to be awarded
harkovskaia [24]

Answer:

(a) 0.0152%

(b) 1.1663%

(c) 19.4297%

(d) 79.3787%

Step-by-step explanation:

Tickets bought by organizers = 4

Number of tickets = 55

Prizes = 3

(a) The probability that the four organizers win all of the prizes is:

P = \frac{4}{55}*\frac{3}{54}*\frac{2}{53}\\P=0.0152\%

(b) The probability that the four organizers win exactly two of the prizes is:

P = \frac{4}{55}*\frac{3}{54}*\frac{51}{53}+\frac{4}{55}*\frac{51}{54}*\frac{3}{53}+\frac{51}{55}*\frac{4}{54}*\frac{3}{53}\\P=1.1663\%

(c) The probability that the four organizers win exactly one of the prizes is:

P = \frac{4}{55}*\frac{51}{54}*\frac{50}{53}+\frac{51}{55}*\frac{4}{54}*\frac{50}{53}+\frac{51}{55}*\frac{50}{54}*\frac{4}{53}\\P=19.4397\%

(d) The probability that the four organizers win none of the prizes is:

P = \frac{51}{55}*\frac{50}{54}*\frac{49}{53}}\\P=79.3787\%

5 0
2 years ago
Which is a zero of the quadratic function f(x)9x^2-54x-19
zvonat [6]

Answer:

X= -1/3, X= 19/3

Step-by-step explanation:

3 0
2 years ago
Find the unknown side length, x. Write your answer in simplest radical form.
Anna [14]

Answer:

The length of he hypotenuse of the triangle is  x = 65.

Step-by-step explanation:

Here, the base of the right triangle = 56

The perpendicular = 33

The hypotenuse of the triangle = x

Now, by PYTHAGORAS THEOREM: In a right angled triangle

(Base)^{2}    + (Perpendicular)^{2}   = (Hypotenuse)^{2}

or, here  

(56)^{2}    + (33)^{2}   = (x)^{2}

or, x^{2}  = 3136 + 1089 \implies x = \sqrt{4225} \\x = 65

Hence, the length of he hypotenuse of the triangle is 65.

3 0
2 years ago
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