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2 years ago

What is the area of the figure?

Mathematics

1 answer:

masya89 [10]2 years ago

3 0

Step-by-step explanation:

∆=3*6=18

[]=5*15=75

75+18=93 in squared

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At Appalachian State University it is known that 52% of undergraduates are female. If a sample of 150 undergraduate students was

In-s [12.5K]

Answer:

a. The sampling distribution will be approximately normal.

d. The mean of the sampling distribution will be close to 52%

g. The standard deviation of the sampling distribution will be 0.0408

Step-by-step explanation:

For this problem the sample size is large enough (n>30), and then the sampling distribution $\hat p$ would be approximately normal. The mean of the sampling distributions is given by $p=0.52$

The expected value for the sampling distribution would be 0.52 since $E(\hat p) = p$

And for the standard deviation we know that is given by:

$Sd= \sqrt{\frac{p (1-p)}{n}}=\sqrt{\frac{0.52(1-0.52)}{150}}=0.0408$

So the correct answers on this case are:

a. The sampling distribution will be approximately normal.

d. The mean of the sampling distribution will be close to 52%

g. The standard deviation of the sampling distribution will be 0.0408

3 0

2 years ago

Make d the subject of h = d/3 + 2

Bumek [7]

Answer:

D=3(h-2)

Step-by-step explanation:

h=d/3+2

h-2=d/3+2-2

h-2=d/3

3(h-2)=d/3x3

3(h-2)=d

6 0

2 years ago

llene is making bows for gift wrapping. She uses 1 feet of ribbon for each 3 bow. How much ribbon will she need to make 12 bows?

adelina 88 [10]

Answer:

4 feet

Step-by-step explanation:

Because if she used 1 feet of ribbon for 3 bows you need to multiply by 4 to 1 foot and you will get 12 bows

6 0

2 years ago

Read 2 more answers

Determine if the two triangles are congruent. If they are, state how you know.

IRISSAK [1]

Answer:

AAS

Step-by-step explanation:

4 0

2 years ago

Solve each system by graphing:<br> Y= 1/4x-4 <br> Y= -x+1

AlexFokin [52]

Do you have a graphing calculator? if yes than all you have to do is hit the y= button in the top left corner and type 1/4x-4 for y1. then you need to hit graph in the top right corner. repeat this process substituting 1/4x-4 and -x+1

4 0

2 years ago