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2 years ago

What is the surface area of a right circular cylinder with a diameter of 14 meters and a height of 9 meters

Mathematics

1 answer:

Umnica [9.8K]2 years ago

4 0

Answer:

This is your answer ☺️☺️☺️

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BRAINLIESTTTTTT PLZZ

stiks02 [169]

Answer:

4n + n + 6 + 4n + n + 6

10n + 12

he ought to have added the Ns

cc: He is supposed to add the coefficients of N

4 0

3 years ago

courtney has 155 coins in her purse. all of the coins are quarters and dimes, worth a total of $30.20. how many quarters does sh

Assoli18 [71]

Answer: she would have 98 quarters

3 0

3 years ago

If $4.50 will buy 3 bus tickets, how many bus tickets can be bought with $18?

Nostrana [21]

Answer:

12 Bus Tickets

Step-by-step explanation:

18 / 4.50 = 4 x 3 Bus tickets = 12 Tickets

8 0

3 years ago

Select all that are true.

satela [25.4K]

Answer:

Step-by-step explanation:

1/2 +1/2 =1

length 1/2 ×4=2

wide 1/2 ×3 =1 1/2

height 1/2×3= 1 1/2

4 0

3 years ago

An insurance company sells automobile liability and collision insurance. Let X denote the percentage of liability policies that

qaws [65]

Answer:

-764.28

Step-by-step explanation:

Given the joint cumulative distribution of X and Y as

$F(x,y) = \frac{xy(x+y)}{2000000}\ \ \ \, \ 0\leq x100, 0\leq y\leq 100$

#First find $F_x$ and probability distribution function , $f_x(x)$ :

$F_x(x)=F(x,100)\\\\\\=\frac{100x(x+100)}{2000000}\\\\\\\\=\frac{100x^2+10000x}{2000000}\\\\\\=>f_x(x)=\frac{x}{10000}+\frac{1}{200}$

#Have determined the probability distribution unction , $f_x(x)$ , we calculate the Expectation of the random variable X:

$E(X)=\int\limits^{100}_0 \frac{x^2}{10000}+\frac{x}{200} dx \\\\\\\\=|\frac{x^3}{30000}+\frac{x^2}{400}|\limits^{100}_0\\\\=58.33\\\\$

#We then calculate $E(X^2)$ :

$E(X^2)=\int\limits^{100}_0 \frac{x^3}{10000}+\frac{x^2}{200}\ dx\\\\=\frac{x^4}{40000}+\frac{x^3}{600}|\limits^{100}_0=4166.67\\\\Var(X)=E(X^2)-(E(X))^2=4166.67-58.33^2\\\\Var(X)=764.28$

Hence, the Var(X) is 764.28

4 0

3 years ago