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3 years ago

What is algebraic expression for the difference of 2 and the product of 3 and k

Mathematics

1 answer:

krek1111 [17]3 years ago

5 0

I'm sure the correct answer is 3k-2

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HELP ME PLZ I WILL GIVE BRAINLY AND 50 PTS!!

a_sh-v [17]

Answer:

B. -23

Step-by-step explanation:

<u>I assume it is:</u>

|5| - 4(3² - 2)

<u>Simplifying in steps:</u>

5 - 4(9 - 2) =
5 - 4(7) =
5 - 28 =
-23

Correct choice is B

7 0

2 years ago

Read 2 more answers

Write the mixed number as a fraction. 1 2\5

konstantin123 [22]

Answer:

1.40

Step-by-step explanation:

6 0

3 years ago

I need the answer to this

abruzzese [7]

Answer:

63.2

Step-by-step explanation:

Corresponding sides of similar triangles are proportional, so

ST/16 = 31.6/8
ST = 63.2

8 0

2 years ago

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)

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

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

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

5 0

3 years ago

By how many is 450 x 1000 less than 500,000

kompoz [17]

It is 50,000 less

450 x 100 = 450,000

3 0

3 years ago

Read 2 more answers