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3 years ago

CAN SOMEONE HELP ME PLEASE WILL MARK BRANLIST

Mathematics

1 answer:

olga2289 [7]3 years ago

3 0

Answer:

36x

Step-by-step explanation:

6x=6x=12x

12-6.4=18x

5.5--2.1=6x

12x+18x+6x=36x

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Tahnks for helping it will mean a lot

VMariaS [17]

Answer:

$- 1.2 , - \frac{1}{2} ,0.44,\frac{7}{3}$

Step-by-step explanation:

We want to arrange the following numbers on the number line in order from least to greatest.

The numbers are:

$0.44, \frac{7}{3} , - 1.2, - \frac{1}{ 2}$

Let us convert everything into decimals to get:

$0.44,2. \bar3 , - 1.2, - 0.5$

Rearranging from least to greatest, we have:

$- 1.2 , - 0.5 ,0.44,2. \bar3$

6 0

3 years ago

If Sin 3x= Cos (x-60), find the value of x

Kamila [148]

Answer:

x = 15

Step-by-step explanation:

Assuming 3x and x-60 are in degrees, you can use:

cos(a) = sin(a+90)

To rewrite the equation as:

sin(3x) = sin(x-60+90)

sin(3x) = sin(x+30)

3x = x+30

2x = 30

x = 15

But, solving 3x = x+30 which simplifies to x=15 is not the only solution to this equation, as you can see in below picture. Finding all solutions is a bit more work, but maybe that is not required in your case.

4 0

3 years ago

Best of three In a best out of three series played between teams A and B, the team that gets two wins first wins the entire seri

konstantin123 [22]

Answer:

a) P (x = 2 games ) = 0.49 + 0.09 = 0.58

P ( x = 3 games ) = 0.063 + 0.147 + 0.147 + 0.063 = 0.42

b) = 2.42 ≈ 2 games

c) P (x = 2 games ) = 0.49 + 0.09 = 0.58

Step-by-step explanation:

Team A chance of winning a game in the series. P( team A ) = 70% = 0.7

P ( team B ) = 0.3

probability of series ending after two games = 58% = 0.58

A) Determine the probability distribution of X number of games played in the series

First we have to consider the possible combinations that will decide the series and they are

( A,A ) , ( B,B) , ( A,B,B) , ( A,B,A ) , ( B,A,A ), ( B,A,B) = 6 Combinations

( A,A ) = 0.7 * 0.7 = 0.49

( B,B ) = 0.3 * 0.3 = 0.09

( A,B,B ) = 0.7 * 0.3 *0.3 = 0.063

( A,B,A ) = 0.147

( B,A,A ) = 0.147

( B,A,B ) = 0.063

The distribution of the games in the series can be either game or three games before the end of the series

P (x = 2 games ) = 0.49 + 0.09 = 0.58

P ( x = 3 games ) = 0.063 + 0.147 + 0.147 + 0.063 = 0.42

B) the expected number of games to be played

∑ x(Px) = ( 2 * 0.58 ) + 3 ( 0.42 ) = 2.42 ≈ 2 games

C) Verify that the probability that series ends after two games = 58%

sample space of all possible sequences of wins and losses

( A,A ) , ( B,B) , ( A,B,B) , ( A,B,A ) , ( B,A,A ), ( B,A,B) = 6 Combinations

( A,A ) = 0.7 * 0.7 = 0.49

( B,B ) = 0.3 * 0.3 = 0.09

( A,B,B ) = 0.7 * 0.3 *0.3 = 0.063

( A,B,A ) = 0.147

( B,A,A ) = 0.147

( B,A,B ) = 0.063

hence :

P (x = 2 games ) = 0.49 + 0.09 = 0.58

6 0

2 years ago

. What are the lower, middle, and upper quartiles of this data? 23, 15, 22, 15, 23, 15, 13, 21, 14 a. lower: 15, middle: 15, upp

icang [17]

The correct answer us D. lower: 14.5 middle: 15 upper: 22.5

4 0

3 years ago

Read 2 more answers

Please help!! Someone has to know how to do it!! I really need help!! 8th grade math!!

Lisa [10]

Answer:

Function 1 is 7/3

Function 2 is 4/3

Function 1 has the greater rate of change.

Step-by-step explanation:

To find the rate of change in function 1, subtract the y values and divide it by the difference in x values.

Function 1 has slope 7/3 since -3--10 = -3+10=7 and -3--6=-3+6=3. The slope is 7/3.

Find the slope of function 2 by converting the equation to slope intercept form.

3y-4x=3

3y=3+4x

y=4/3x+1

Function 2 has slope 4/3

Function 1 has the greater rate of change.

8 0

3 years ago