All categories

3 years ago

I need help on all this

Mathematics

1 answer:

Snezhnost [94]3 years ago

6 0

#2:

Find the total surface area of the capped cylinder.

2 times the area of the base would be 2[pi*(3 cm)^2, or 18pi.

The circumference of the base is C = 2pi*r, which here is 6pi.
The area of the sides is C times height, or 6pi*(11 cm) = 66pi cm^2

Add this to the 18pi cm^2 previously found.

Total area of cylinder, including top and bottom, is 84 cm^2.

You might be interested in

The U.S. Census Bureau announced that the median sales price in 2014 for new homes was $282,800 and the mean sales price was $34

victus00 [196]

Answer:

a) 0.9964

b) 0.3040

Step-by-step explanation:

Given data:

standard deviation = $90,000

Mean sales price =$345,800

sample mean = $370,000

Total number of sample = 100

calculate z score for [/tex](\bar x = 370000)[/tex]

$z = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{370000 - 345800}{\frac{90000}{\sqrt{100}}}$

z = 2.689

P(x<370000) = P(Z<2.689)

FROM STANDARD NORMAL DISTRIBUTION TABLE FOR Z P(Z<2.689) = 0.9964

calculate z score for (\bar x = 350000)

$z = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{350000 - 345800}{\frac{90000}{\sqrt{100}}}$

z = 2.133

$P(350000 \leq \bar x \leq 365000) = P(0.467 \leq Z\leq 2.133) = P(Z\leq 2.133) - P(Z\leq 0.467)$

FROM NORMAL DISTRIBUTION TABLE Z VALUE FOR

$P(Z\leq 2.133) = 0.9836$

$P(Z\leq 0.467) = 0.6796$

SO, = 0.9836 - 0.6796 = 0.3040

4 0

3 years ago

Which of the following numbers is closest to 4?<br> O A. V13<br> O B. V18<br> C. 15<br> D. 719

OverLord2011 [107]

Answer:

$\huge\boxed{B.\ \sqrt{18}}$

Step-by-step explanation:

$4=\sqrt{4^2}=\sqrt{16}$

3 0

3 years ago

A box of 6 trophies costs 5$. How much would it cost to buy 48 trophies ?

Mama L [17]

Do 48/6, then multiply the answer by $5

8 0

3 years ago

Read 2 more answers

What is the price of a $1,000 face value bond if the quoted price is 102.1? $102.10 $1,021.00 $1,020.01 $1,002.10 $1,020.10?

dusya [7]

Given that the par value of the bond is $1000 and the quoted price is $102.1, then the price of the bond will be:
Price=(quoted price)
Price=102.1
Price=$102.1

Answer: $102.1

5 0

3 years ago

The width of a rectangle is 4 less than half the lenght. If L represents the length, which equation could be used to find the wi

adell [148]

Answer:

Step-by-step explanation:

Find the midpoint of a segment. It is geometry please help.

5 0

3 years ago