MATHEMATICS HIGH SCHOOL

Twelve of the 20 students in Ms. Sarno’s homeroom are female. Each month, Ms. Sarno randomly selects a student to act as “teacher’s helper.”Which simulation best models the selection of female “teacher’s helpers” for January, February, March, and April?
A spinner, divided into 5 congruent sectors with three of the sectors representing female students, is spun 12 times.
A coin, with heads up representing female students, is flipped 4 times.
A bag of 15 marbles, with 9 marbles representing female students, has a marble drawn 4 times with replacement.
A number cube, with odd numbers representing female students, is rolled 12 times.

Answers

Answer 1
Answer:

Answer:

C. A bag of 15 marbles , with 9 marbles representing female students, has a marble drawn 4 times with replacement

Step-by-step explanation:

i took the test and got it right ;)
Answer 2
Answer:

Answer:

the answerr is C

Step-by-step explanation:

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Answers

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Two cylindrical containers are shown. Container A has radius r and height h and holds a maximum of 42 ounces of water. Container B has radius r and height 1.5h. What is the maximum amount of water that Container B can hold?

Answers

Volume of a cylindrical container=πr²h
Container A:
πr²h=42 ounces of water.

Countainer B.
Volume of Container B=πr²(1.5 h)=1.5(πr²h)=1.5(42 ounces of water)=63 ounces of water.

Answer: the maximum amount of water that Container B can hold is 63 ounces of water. 

A piece of string is 325 centimeters long. You need the string to be 1 and 1/4 (1.25) meters long.

How many centimeters should you cut off?

Answers

It would be 200cm, because 100 cm is 1 meter, and 1.25 would be 125 cm.  So if you subtracts 125 from 325, you get 200 cm.

What is the study of mathematical probabilities, distributions and deviations?

Answers

Statistics. Statistics is a branch of mathematics which is the scientific study of mathematical values pertaining to qualitative descriptions and transcribe them into quantifying values such as the descriptive statistics and infuses these quantities in the field of inferential statistics. In these two categories involve probabilities, distribution and deviations which are mainly compositions of the descriptive statistics. Inferential statistics will involve comparison and variation of the given values. Methods are t-test, analysis of variance, and two-way analysis of variance and other methods.



The ratio of Mark's age to Reeta's age is 3:5Mark's age is 24 years.
(a) Work out Reeta's age.​

Answers

Answer:

40

Step-by-step explanation:

Set up a ratio.  Solve for x.

(3)/(5)=(24)/(x) \n3x = 120\nx=40

Reeta is 40 years old.

Multiply.
(–4) ∙ (–8)
a. –32
b. –12
c. 12
d. 32

Answers

(-4) X (-8) = (32)...=>Always remember in multiplying integers when both the signs are negative(-) then u multiply and put the positive(+) sign ...the product would be positive....=>and when both have positive (+) sign ,u multiply and put the plus sign ...=>and when both are different ,one positive(+) and other negative(-) then u multiply and put the negative(-) sign....(the same rules are followed in divisions also)....=>So here the answer is option D(32) ...Hope it helps!!!
the correct answer is D 32
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