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3 years ago

Could anyone pls help me with these two questions on 3d trigonometry?

Mathematics

1 answer:

weqwewe [10]3 years ago

7 0

Yguchvuvunvivuhvihuvu uhhhhh yuu I I gif

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Find multiplicative inverse of -13

Juli2301 [7.4K]

Answer:

asdaqwdawdasd

Step-by-step explanation:

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3 years ago

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5. Write an equivalent ratio to 18:1?

Molodets [167]

Answer:

36:2

Step-by-step explanation:

we can just multiply both numbers by 2, to get 36:2

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3 years ago

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Let Y be a random variable with a density function given by

Neporo4naja [7]

From the given density function we find the distribution function,

$F_Y(y)=P(Y\le y)=\displaystyle\int_{-\infty}^y f_Y(t)\,\mathrm dt=\begin{cases}0&\text{for }y$

(a)

$F_{U_1}(u_1)=P(U_1\le u_1)=P(3Y\le u_1)=P\left(Y\le\dfrac{u_1}3\right)=F_Y\left(\dfrac{u_1}3\right)$

$\implies F_{U_1}(u_1)=\begin{cases}0&\text{for }u_1$

$\implies f_{U_1}(u_1)=\begin{cases}\frac{{u_1}^2}{18}&\text{for }-3\le u_1\le3\\0&\text{otherwise}\end{cases}$

(b)

$F_{U_2}(u_2)=P(3-Y\le u_2)=P(Y\ge3-u_2)=1-P(Y$

$\implies F_{U_2}(u_2)=\begin{cases}0&\text{for }u_2$

$\implies f_{U_2}(u_2)=\begin{cases}\frac32(u_2-3)^2&\text{for }2\le u_2\le4\\0&\text{otherwise}\end{cases}$

(c)

$F_{U_3}(u_3)=P(Y^2\le u_3)=P(-\sqrt{u_3}\le Y\le\sqrt{u_3})=F_Y(\sqrt{u_3})-F_y(\sqrt{u_3})$

$\implies F_{U_3}(u_3)=\begin{cases}0&\text{for }u_3$

$\implies f_{U_3}(u_3}=\begin{cases}\frac32\sqrt u&\text{for }0\le u\le1\\0&\text{otherwise}\end{cases}$

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3 years ago

You just reflected on working with right triangles and trigonometric concepts. How important were concepts that you learned prev

harina [27]

Idk if ya still need it or if this will help but this is what i put for mine

Concepts that I had previously learned about are quite important because math goes hand and hand. if you try to skip something and go ahead you'll most likely get confused because there could of been something highly important to that would help you understand whats ahead. in the previous unit it tells you about triangles and their description like a right triangle-90 degree angle and where legs and hypotenuse is located, this unit has had a ton about right triangles.

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3 years ago

Simplify the expression. |5| - |-4|

mylen [45]

Answer:

Step-by-step explanation:

Absolute value means take what is inside and make it positive

|5| - |-4|

5 - 4

6 0

3 years ago