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2 years ago

Which figures are polygons ? Select each correct answer. Figure A Figure B Figure C Figure D

Mathematics

1 answer:

Korolek [52]2 years ago

6 0

Answer: Figure A, B and C

Step-by-step explanation:

Because C has rounded angles, it is not a polygon.

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4 is added to the data set 22, 25, 31, 33, 24. Answer true or false for the following statements.

Vedmedyk [2.9K]

Answer:

The range and mean will increase - False

(because only range will increase, mean will decrease)

The mean and median will decrease - True

The mean will decrease but the median will stay the same - False

(Both of mean and median will decrease)

An outlier is more likely to change the median than the mean - False

(An outlier is more likely to change the mean than the median)

3 0

3 years ago

An investment website can tell what devices are used to access their site. The site managers wonder whether they should enhance

lbvjy [14]

Answer: a) Unimodal and symmetric

b) 0.26

c) 0.038

Step-by-step explanation:

Given: Sample size of investors (n)= 131

True proportion of smartphone users(p) =26%

a) Since sampling distribution for the sample proportion is approximately normal when n is larger.

Normal distribution is Unimodal and symmetric.

So correct option : Unimodal and symmetric

b) mean of this sampling distribution = p = 0.26

c) standard deviation of the samplingdistribution = $\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.26\times (1-0.26)}{131}}=\sqrt{0.00146870229008}$

$=0.0383236518364\approx0.038$

6 0

3 years ago

What is the value of sin20sin30sin40sin80.

Ilya [14]

1,-1,1,-1 is your answer

3 0

3 years ago

What is the domain of this function?

hichkok12 [17]

Answer:

no real numbers

Step-by-step explanation:

5 0

2 years ago

The graph represents how much money Emma makes selling bracelets. The table shows how much Jack makes selling comic books. Which

Lilit [14]

Answer:

Bracelets are the same price as the comic books

Step-by-step explanation:

I just did the iready lol

6 0

3 years ago