1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Scrat [10]
2 years ago
11

Please help me out! :)

Mathematics
1 answer:
lapo4ka [179]2 years ago
7 0
The area for that Equilateral triangle is <span>110.851
if you round it, you get 110.9
</span>
You might be interested in
What is the value of x that makes the given equation true? ​x−3x=2(4+x)
Margarita [4]

the answer to your question is x= -2

5 0
3 years ago
Read 2 more answers
The city of Hampton received money for improvements of the towns park. the park Committee put a random sample of 75 presidents f
Natasha2012 [34]

Answer:about a third of the residents prefer a park improvement of more trees

Step-by-step explanation:only 27 out of 75 would make it a third

3 0
3 years ago
I need help with 1 and 2
oee [108]
1) -149, -1; -148, -2; -147, -3
2) No, according to the commutative property of addition, it does not matter the order they are put in.

Hope this helps!
6 0
3 years ago
Read 2 more answers
A student solved this problem and said the answer was 8 1/4 feet. Jenny had three pieces of rope. One piece was 3 1/2 ft long, a
Zigmanuir [339]
The answer would be B hope I helped u out!!!!!☺☺☺☺☺☺
3 0
3 years ago
Read 2 more answers
If X and Y are independent continuous positive random
Leni [432]

a) Z=\frac XY has CDF

F_Z(z)=P(Z\le z)=P(X\le Yz)=\displaystyle\int_{\mathrm{supp}(Y)}P(X\le yz\mid Y=y)P(Y=y)\,\mathrm dy

F_Z(z)\displaystyle=\int_{\mathrm{supp}(Y)}P(X\le yz)P(Y=y)\,\mathrm dy

where the last equality follows from independence of X,Y. In terms of the distribution and density functions of X,Y, this is

F_Z(z)=\displaystyle\int_{\mathrm{supp}(Y)}F_X(yz)f_Y(y)\,\mathrm dy

Then the density is obtained by differentiating with respect to z,

f_Z(z)=\displaystyle\frac{\mathrm d}{\mathrm dz}\int_{\mathrm{supp}(Y)}F_X(yz)f_Y(y)\,\mathrm dy=\int_{\mathrm{supp}(Y)}yf_X(yz)f_Y(y)\,\mathrm dy

b) Z=XY can be computed in the same way; it has CDF

F_Z(z)=P\left(X\le\dfrac zY\right)=\displaystyle\int_{\mathrm{supp}(Y)}P\left(X\le\frac zy\right)P(Y=y)\,\mathrm dy

F_Z(z)\displaystyle=\int_{\mathrm{supp}(Y)}F_X\left(\frac zy\right)f_Y(y)\,\mathrm dy

Differentiating gives the associated PDF,

f_Z(z)=\displaystyle\int_{\mathrm{supp}(Y)}\frac1yf_X\left(\frac zy\right)f_Y(y)\,\mathrm dy

Assuming X\sim\mathrm{Exp}(\lambda_x) and Y\sim\mathrm{Exp}(\lambda_y), we have

f_{Z=\frac XY}(z)=\displaystyle\int_0^\infty y(\lambda_xe^{-\lambda_xyz})(\lambda_ye^{\lambda_yz})\,\mathrm dy

\implies f_{Z=\frac XY}(z)=\begin{cases}\frac{\lambda_x\lambda_y}{(\lambda_xz+\lambda_y)^2}&\text{for }z\ge0\\0&\text{otherwise}\end{cases}

and

f_{Z=XY}(z)=\displaystyle\int_0^\infty\frac1y(\lambda_xe^{-\lambda_xyz})(\lambda_ye^{\lambda_yz})\,\mathrm dy

\implies f_{Z=XY}(z)=\lambda_x\lambda_y\displaystyle\int_0^\infty\frac{e^{-\lambda_x\frac zy-\lambda_yy}}y\,\mathrm dy

I wouldn't worry about evaluating this integral any further unless you know about the Bessel functions.

6 0
3 years ago
Other questions:
  • What is the quotient?
    5·1 answer
  • a city block is a square with each side measuring 102 yards. Find the length of the diagonal of the city block.
    15·1 answer
  • Find the curvature of r(t) at the point (1, 0, 0). r(t) = et cos(t), et sin(t), 3t
    14·1 answer
  • Suppose that a company wishes to predict sales volume based on the amount of advertising expenditures. The sales manager thinks
    7·1 answer
  • A package of 50 blank CDs costs $25 however the store has run out of 50-packages. the manager agrees to sell your packages of 12
    8·1 answer
  • Use the graph shown to find the following
    8·1 answer
  • A cookie recipe calls for 1/3 of a cup of sugar and 1 1/2 cups of flour. What is the unit rate of flour to sugar for the cookie
    5·1 answer
  • If 5% of 100 is 5 and 10% of 100 is 10, what is 35% of 100? Explain your reasoning.
    11·1 answer
  • The metric system has several advantages that include all of the following except _____.
    6·1 answer
  • Tammy is saving money in a bank that charges a fee if the account is inactive for an extended period of time. The equation y=200
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!