-3/4 x 2/5 =? IN SIMPLEST FORM!!!! I mark BRAINLIESTTTTTT and im giving 35 POINTSSS PLEASE HELP ASAP

Answer:

A

 [tex]P(X =  8 ) =  0.0037[/tex]

B

    [tex]P(X < 5) =  0.805[/tex]

C

I will not be surprised because the probability that fewer than half covered their mouth when​ sneezing is less than 0.5

Step-by-step explanation:

From the question we are told that

   The probability a randomly selected individual will not cover his or her mouth when sneezing is [tex]p = 0.267[/tex]

    The probability a randomly selected individual will cover his or her mouth when sneezing is

                   [tex]q = 1 -p[/tex]

                   [tex]q = 1 -0.267[/tex]

                    [tex]q = 0.733[/tex]

Generally the probability that among 12 randomly observed individuals exactly 8 do not cover their mouth when​ sneezing is mathematically represented as

        [tex]P(X =  8 ) =  \left 12 } \atop {}} \right. C_8 *  p^8 *  q^{12-8}[/tex]

        [tex]P(X =  8 ) = 495 *  (0.267)^8 *  (0.733)^{12-8}[/tex]

        [tex]P(X =  8 ) =  0.0037[/tex]

Generally the probability that among 12 randomly observed individuals fewer than 5 do not cover their mouth when​ sneezing is mathematically represented as

       [tex]P(X <  5 ) =  P[ P(X = 0) + \cdots + P(X =  4)][/tex]

=>        [tex]P(X <  5) = \left 12 } \atop {}} \right. C_0 *  (0.267)^0 * (0.733)^{(12- 0) }+\cdots +  \left 12 } \atop {}} \right. C_4 *  (0.267)^0 * (0.733)^{(12- 4) }[/tex]

=>     [tex]P(X < 5) =  0.805[/tex]

Give that half of  12 is  6 then

The probability that fewer than half covered their mouth when​ sneezing is mathematically represented as

      [tex]P(X > 6) =  1 -  P( X \le 6 )[/tex]

  => [tex]P(X > 6)  =  1 -  [P(X = 0 ) +\cdots+P(X = 6) ][/tex]

 => [tex]P(X > 6) = 1 -  [\left 12 } \atop {}} \right. C_0 *(0.267)^0 *  (0.733)^{12 - 0 } +\cdots + \left 12 } \atop {}} \right. C_6 * (0.267)^6 *  (0.733)^{12-6}][/tex]

=>    [tex]P(X > 6)   =  0.0206[/tex]

Answer:

see below

Step-by-step explanation:

D = 1 - ∑(4/125)²

D = 1 - (2/5³)²

D = 1 -  2²  

           5³ ²

D ≅  0.99974

30*2

60

again 2(a+b)

2(30+2)

2*32

64

Answer:

20x^2

Step-by-step explanation:

[tex]20x \times x\\\\\mathrm{Apply\:exponent\:rule}:\quad \:a^b\times \:a^c=a^{b+c}\\\\xx=\:x^{1+1}\\\\=20x^{1+1}\\\\\mathrm{Add\:the\:numbers:}\:1+1=2\\\\=20x^2[/tex]

Answer:

√6

Step-by-step explanation:

The irrational numbers are all the real numbers which are not rational numbers. That is, irrational numbers cannot be expressed as the ratio of two integers.

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \bold{ \sf{ - 15k + 20}}}}}}[/tex]

Step-by-step explanation:

[tex] \sf{ - 5(3k - 4)}[/tex]

Distribute -5 through the parentheses

[tex] \longrightarrow{ \sf{ - 5 \times 3k - ( - 5) \times 4}}[/tex]

[tex] \longrightarrow{ \sf{ - 15k - ( - 20)}}[/tex]

[tex] \longrightarrow{ \sf{ - 15k + 20}}[/tex]

Hope I helped!

Best regards! :D

I used desmos which is an online graphing calculator and I got this

Answer:

x is the independent variable and it represents the number of hours worked per week by the clerk.

Step-by-step explanation:

An independent variable refers to a variable in model that is varied or changed in order to examine its effect on another variable. The other variable is called a dependent variable.

A dependent variable is a variable in a model that changes as a result of a change in the independent variable.

From the question, x is the independent variable and its represent the number of hours worked by the clerk.

F(x) represents the amount of your weekly paycheck and it is the dependent variable that changes as the number of hours worked, x, changes.

For example, since we are given:

F(x) = 6x ............................... (1)

Where;

F(x) = = depemdent variable = Amount of weekly paycheck (before taxes are taken out)

6 = coefficient of x = Earning per hour

x = Independent variable = Number of hours worked

Assuming x = 1, we can substitute this into equation (1) and have:

F(x) = 6 * 1 = $6

But when x = 2, we have:

F(x) = 6 * 2 = $12

Therefore, the dependent variable F(x) changes from $6 weekly to $12 weekly as the independent variable x changes form 1 hour to 2 hours weekly.

Answer:

49 degrees

Step-by-step explanation:

its because like it's on the same line

Answer:

17 degrees

Step-by-step explanation:

Answer:

33 additional goals

Step-by-step explanation:

59+g is greater than or equal to 92 subtract 59 from both sides leaving the answer g is greater than or equal to 33

The hockey player would have to score:

In order the match the record, the hockey player needs to score a certain number of goals that will take them to the record of 92. That number is:

= 92 - 59

= 33 goals

If they however want to break the record, the need to score more than 92 goals. The least number of goals they can score to do so is:

= Number of goals to match record + 1

= 33 + 1

= 34 goals

In conclusion, the player would have to score 33 goals to match the NHL record but 34 to break it.

Find out more at https://brainly.com/question/19239376.

Answer:

1 1/3

Step-by-step explanation:

Answer:

1 1/3 or 4/3 (both have the same value, but just are in different forms)

Answer:

It is rational

Answer:

4 and 3/5? It is irrational

Step-by-step explanation:

Its irrational because it is not a whole number, it includes a fraction, which is not a whole number.

Answer:

D. passive

Step-by-step explanation:

Answer: -2/7

Step-by-step explanation:

To find the slope, you use the formula [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex].

[tex]m=\frac{5-7}{2-(-5)} =\frac{-2}{7}=-\frac{2}{7}[/tex]

Now, we know the slope is -2/7.

Answer:

Option (D)

Step-by-step explanation:

When we make a pie we will need apples.

That means number of pie baked will always depend on the number of apples available or number of apples used.

So the number of apples used will be independent variable.

Since number of pie will always depend on the number of apples used,

Number of pie baked will be a dependent variable.

Therefore, Option (D) will be the answer.

Answer:No the answer is C I just took the test

Step-by-step explanation:

Answer:

$720

Step-by-step explanation:

$20000 - 100%

$x. - 2.5%

x=(20000*2.5)/100=500

20000+500=$20500 in one year (Mark)

20000 - 100

x. - 6.1

x= (20000*6.1)/100 = 1220

20000+1220= $21220 (Walter)

21220-20500= $720 more (Walter will have after 1 year)

Answer:

4.24

Step-by-step explanation:

Answer: 4.24

Step-by-step explanation:

just do 7.42/ 1.75 and ur answer is 4.24

Answer:

x = 56

Step-by-step explanation:

cross multiply. 28 times 2 and 1 times x. set them equal to each other and solve for x to get 56.

Answer:Step 2: Divide both sides by 5.

Step-by-step explanation:

Answer:

Step-by-step explanation:

add -61 on both sides:

5x - 61 + 61 = 20 + 61

simplify

5x = 81

divide 5 on both sides:

5x = 81

5      5

x = 81

      5

Step-by-step explanation:

3x+4=7x-4

add 7x to each side of equation 4x+3x+-7x=-4x+7x+-7x

combine like terms 7x+-7x=0

4+ -4x =-4 +0

4+-4x= -4

add -4 to each side of equation 4+ -4 +-4x=-4+-4

combine like terms -4 +4=0

0+ -4x = -4+ -4

combine like terms -4+-4=-8

-4x =-8

divide each side by-4

x=2

simplifying

x = 2

Answer:

b. 10 - 61

Step-by-step explanation:

10 + 61 is 71

We need to change the addition sign to subtraction.

10 -  61= -51

We need to find an equation that is equal to -51.

a. -10 +61

That equals 51, which is not 71, which means it is not letter a.

b. 10 - 61

That equals -51, which is not 71, which means it is not letter b.

c. -10 - 61

That equals -71, which is not 71, which means it is not letter c.

d. 6- 107

That equals -101, which is not 71, which means it is not letter d.

Options :

A) - 0.89

B.) + 0.34

C.) + 0.89

D.) - 0.34

Answer: A) - 0.89

Step-by-step explanation:

Since Dr. Hernandon has been able to establish that a strong negative relationship exists between the number of hours spent playing video games and reading fluency, hence looking through the options provided, the most suitable will be - 0.89, this is because the negative sign implies a negative correlation or association between the two variables (that is decrease in one leads to a corresponding increase in the other and vice-versa) also, the strength of correlation exists in how close the value of the correlation Coefficient is to 1 or - 1. Values closer to 1 or - 1 are strongly correlated while those closer to zero exhibits a weak association. Correlation Coefficient value of 0 implies that there is no association between both variables.

Answer:

x=440 gaL 90 % Antifreeze II

Step-by-step explanation:

In the problem, there are two types of antifreeze

antifreeeze I and

antifreeze II

antifreeze I 25 ----80 gal

Antifreeze II 90 ----- x gal

Total 80 ---------------- (80 + x ) gal

(25*80)+(90*x)=80(80+x)

2000+90x=6400+80x

90x-80x=6400-2000

10x=4400

divide both sides by 10 we have

x= 440

x=440 gaL 90 % Antifreeze II

Answer: 67.5 and 112.5 degrees

Answer:

#7.  JK = 1

Step-by-step explanation:

So all these problems are similar in the fact that you are given three pieces of information and you need to determine x.  Let's look at #7.

We are to find the length JK but we are given it in terms of x.  To find the length, we need to find x.  Using the information we have about KL and JL, we can find this.  Note, the value of JL is 5, and the value of KL is x + 8.

JK + KL = JL

( 2x + 9 ) + ( x + 8 ) = 5

3x + 17 = 5

3x = -12

x = -4

Now that we have the value of x,  we can find the value of JK:

JK = 2x + 9

JK = 2(-4) + 9

JK = -8 + 9

JK = 1

Hence, the length of JK is 1.

Using this same basic idea, you can solve all of these problems.

Cheers.

Answer:

8/3 or 2 2/3, but I used 8/3

Step-by-step explanation:

got it right :)

Answer:

The answer is 2 2/3 but the fastest way to do it is 8/3.

Answer:

0.551

Step-by-step explanation:

Let no. of people who take discount = x

Using binomial distribution, N c X. p^x. q^(n-x)

p : customer getting discount = 0.3, q : customer not getting discount = 0.7   n : no. of customers = 8

Probability that x < 3 : Prob (x=0) + Prob (x=1) + Prob (x=2)

= 8 c 0. (0.3)^0 . (0.7)^8 + 8 c 1. (0.3)^1 . (0.7)^7 + 8 c 2. (0.3)^2 . (0.7)^6

0.05764801 +  0.19765032 + 0.29647548

0.551

Answer:

Step-by-step explanation:

f(g(x) = g(f(x)) for at least one value of x.

The composition of f and g is commutative.

f(g(0)) = 5 and g(f(-2.5)) = 5.

The graphs show that function composition is not commutative.

Answer:

A, C, D, and E

 f(g(x)) = g(f(x)) for at least one value of x.

 f(g(0)) = 5 and g(f(–2.5)) = 5.

Both f(g(x)) and g(f(x)) have the same domain.

The graphs show that function composition is not commutative.

Step-by-step explanation: