What are the polar coordinates of the complex number -23i?​

Answer:

Option A

Step-by-step explanation:

62 and x are consecutive supplementary  angles and so, x = 180 - 62 = 118

And this makes the lines parallel

Answer:

Hot dogs - 27, soda - 81

Step-by-step explanation:

Soda to Hot dog ratio = 3:1

If the total is 108, we can divide 108/4 ---> 27

now, multiply 3 and 1 by 27 and there you go!

edit: also if you don't know why I divided 108 by 4, its because you add together both sides of the ratio

Answer:

1

Step-by-step explanation:

2^2-2=2

2-1=1

hopefully you will find it helpful

Answer:

a.) 10:3

b.) 3:17

c.) 3:30

Step-by-step explanation:

There is 10 blue marbles, 3 red marbles, and 17 white marbles.

in total there is 30 marbles because 10+3=13 and 13+17=30.

the ratio of blue marbles to red marbles is 10:3 because there is 10 blue marbles to three red marbles.

the ratio of red marbles to white marbles is 3:17 because there is three red marbles to 17 white marbles.

the ratio of red marbles to total number of marbles is 3:30 because there is three red marbles to 30 marbles in total

Answer: 48 points

Step-by-step explanation:

i hope this helps

Answer:

?

Step-by-step explanation:

Answer:

The decision Rule is  

Reject the null hypothesis

The conclusion is  

There is sufficient evidence to states that  tim and per's mutations lead to different mean copulation duration.

The  test statistics is  [tex]z =-2.2187[/tex]

Step-by-step explanation:

From the question we are told that

    The Mutation Mean copulation duration is for  per [tex]\= x_1 = 17.5[/tex]

     The Mutation Mean copulation duration is for tim [tex]\= x_2 = 19.9[/tex]

     The Mutation Standard deviation copulation duration for is  per [tex]s _1 = 3.37[/tex]

      The Mutation Standard deviation copulation duration for is   tim [tex]s _2 = 2.47[/tex]

       The sample size for per is  [tex]n_1 = 14[/tex]

       The sample size for tim is  [tex]n_2 = 17[/tex]

The null hypothesis  is  [tex]H_o : \mu_1 = \mu_2[/tex]

The alternative  hypothesis  is  [tex]H_a : \mu_1 \ne \mu_2[/tex]

Generally the test statistics is mathematically represented as

      [tex]z = \frac{\=x_1 - \= x_2 }{ \sqrt{\frac{s_1^2 }{n_1} + \frac{s_2^2 }{n_2} } }[/tex]

=>   [tex]z = \frac{17.5 - 19.9 }{ \sqrt{\frac{3.37^2 }{14} + \frac{2.47^2 }{17} } }[/tex]

=>   [tex]z =-2.2187[/tex]

From the z table  the area under the normal curve to the left corresponding to    -2.2187  is

    [tex]P(Z < -2.2187) = 0.013254[/tex]

Generally the p-value is mathematically represented as

      [tex]p-value = 2 * P(Z <-2.2187 )[/tex]

=>    [tex]p-value = 2 * 0.013254[/tex]

=>    [tex]p-value = 0.02651[/tex]

Let assume that the level of significance is  [tex]\alpha = 0.05[/tex]

So

 From the value  obtained we see that [tex]p-value < \alpha[/tex] hence  

The decision Rule is  

Reject the null hypothesis

The conclusion is  

There is sufficient evidence to states that  tim and per's mutations lead to different mean copulation duration.

Answer:

150 to 117 is 25%

340 to 255 is 25%

450 to 351 is 22%

Step-by-step explanation:

Answer:i added a picture, I hope it’s good.

150 - 22% = 117

340 - 25% = 255

450 - 22% = 351

Answer:

The commission is 1925

Step-by-step explanation:

This is because you are taking 3.5% of $55,000. After doing the percent you are left with $1925 which is the commission.

Hope I helped, Have a great day! :-)

The commission of the total sales of $55000 will be $1925.

A specific number in every hundred is what is meant by the percentage. The percentage symbol percent is used to denote a fraction with 100 as the denominator.

The percentage is just like the amount of that value but between 1 to 100 and it is very useful to predict for example if you say 678 then we have to know about the full number also but if you say 80% then it becomes clear.

The percentage is also called the indicating hundredths. Thus, 3% is two-hundredth, which means 3%=3/100=0.03.

Principle amount = $55000

Commision rate = 3.5%

3.5% of 55000 = (3.5 × 55000)/100

3.5% of 55000 = $1925

Hence the 3.5% commission of the amount of $55000 will be $1925.

For more about the percentage

brainly.com/question/13450942

#SPJ2

Answer:

[tex] JM = 60 units [/tex]

Step-by-step explanation:

Given:

[tex] JM = 9x + 6 [/tex]

[tex] JK = 5x [/tex]

[tex] KM = 3x + 12 [/tex]

[tex] JK + KM = JM [/tex] (segment addition postulate)

[tex] (5x) + (3x + 12) = (9x + 6) [/tex] (substitution)

Solve for x

[tex] 5x + 3x + 12 = 9x + 6 [/tex]

Collect like terms

[tex] 5x + 3x - 9x = -12 + 6 [/tex]

[tex] -x = -6 [/tex]

Divide both sides by -1

[tex] x = 6 [/tex]

[tex] JM = 9x + 6 [/tex]

Plug in the value of x

[tex] JM = 9(6) + 6 [/tex]

[tex] JM = 54 + 6 [/tex]

[tex] JM = 60 units [/tex]

Answer:

d. 6b

Step-by-step explanation:

Simplify the following:

[tex] \longrightarrow [/tex] 3(a + 2b) - 3a

3(a + 2b) = 3a + 6b:

[tex] \longrightarrow [/tex] 3a + 6b - 3a

Grouping like terms,

3a + 6b - 3a = 6b + (3a - 3a):

[tex] \longrightarrow [/tex] 6b + (3a - 3a)

3 a - 3 a = 0:

[tex] \longrightarrow [/tex] 6b

Answer:

7/10

Step-by-step explanation:

0.7 = 7/10

You can't simply further so this is the final answer.

Answer:

x = 7/9

Step-by-step explanation:

Let x = 0.7777.....

Multiply both sides by 10

10x  = 7.7777......

  x   = 0.7777......      {Subtract}

9x  = 7

 x = 7/9

Answer: (2a+4)(8a-9)

Step-by-step explanation:

16a^3-50a^2+36a                        16(36)=576

                                                                18,32( add to 50, multiply to 576)

16a^3+18a+32a+36

2a(8a-9)4(16-9)

(2a+4)(8a-9)

Answer:

4000 thousand from relatives and 275 from friends

Answer:

Michael received $2275 ftom relatives and $2000 from friends

Step-by-step explanation:

Let r represent the amount of money from relatives

Let f represent the amount of money from friends

f+r=4275

f+275=r

Use substitution, f+(f+275)=4275

2f+275=4275

2f=4000

f=2000

Substitute 2000 in for f

2000+275=r

2275=r

ANSWER:

Micheal received $2275 from relatives and $2000 from friends

Step-by-step explanation:

its takes her 1.2 mins it would take her 126 mins

Answer:

Step-by-step explanation:

If AB ⊥ CD, then [tex]m_{AB}[/tex] [tex]m_{CD}[/tex] = - 1

P( [tex]x_{1}[/tex] , [tex]y_{1}[/tex] )

y - [tex]y_{1}[/tex] = m( x - [tex]x_{1}[/tex] )

~~~~~~~~~~~~~~~~

y = - 2x + 6 and P(3, 3) , m = - 2

Slope of ⊥ line is [tex]\frac{1}{2}[/tex]

y - 3 = [tex]\frac{1}{2}[/tex] ( x - 3 )

y = [tex]\frac{1}{2}[/tex] x + [tex]\frac{3}{2}[/tex]  or y = 0.5x + 1.5

Answer:

3

Step-by-step explanation:

3 is a factor of 3 and of 18.

Answer: 3

Answer:

3 is the GCF!!!!!!HOPE THIS HELPS!!!

Answer:

I think so

Step-by-step explanation:

Answer:

Rotation then Transition C on Edge.

Step-by-step explanation

Because im smart like that

Answer:

54

Step-by-step explanation:

It’s getting multiplied by 3

so if 6x3=18 then 18x3=54

:DDD

Answer:

Three solutions

Step-by-step explanation:

Infinite solutions means each and every point satisfies both the equations which means there would be a graph that overlaps the original graph.

So compare the equations with the equation

y = 0.5x + 2.75

each and every equation in this form has infinitely many solutions like

y = 0.5x + 2.75 and y - 0.5x = 2.75 these both equations are same. So they have infinitely many solutions as they overlap each other. Furthermore

y = 0.5x + 2.75 and y = 0.5(x + 5.5)

y = 0.5x + 2.75 and y = –2(–0.25x )+ 2.75

all these 4 equations are the same which is y = 0.5x + 2.75 so three systems have infinite solutions we can confirm this by using the desmos online graphing calculator just insert these equations into it and you will see all these equations are the same just like  for example

y = 2x and 2y = 4x

Answer: B, D, and E.

Step-by-step explanation: On Edge!!!!!!!!!!!!!!!

Answer:

Events A and B are independent of each other, so it would be 0.95726

Step-by-step explanation:

Answer:

An inequality correctly shows the relationship between the total cost of the two plumbing companies is [tex]675+24.5x \leq 650+25.75x[/tex]

Step-by-step explanation:

Pat’s Plumbing Company

Cost of inspecting house = $650

Cost of labor per hour = $25.75

Cost of labor in x hours = 25.75x

Total cost = 650+25.75x

AAA Plumbing

Cost of inspecting house = $675

Cost of labor per hour = $24.50

Cost of labor in x hours = 24.5x

Total cost = 675+24.5x

We are given that AAA Plumbing will cost no more than Pat’s Plumbing Company

[tex]675+24.5x \leq 650+25.75x[/tex]

Hence An inequality correctly shows the relationship between the total cost of the two plumbing companies is [tex]675+24.5x \leq 650+25.75x[/tex]

Answer:

carlo scored 65 out of 100 item in math. what percent of the test did he get correctly

Answer:

but she got away

Step-by-step explanation:

Answer:

Obviously, these lyrics are very heartfelt to me ;p

Step-by-step explanation:

Because I am Addison rae...

Answer:

x = 18 and x = 36

Step-by-step explanation:

let unknown value is x

6:x = 1:3

product of means = product of extremes

6*3 = 1 *x

18 = x

x:30=8:5

product of means = product of extremes

5x=180

x=180/5

x=36

Answer:

$9.20 for 1 toy

Step-by-step explanation:

If it's $46 for 5 toys, we can divide both $46 and 5 to get $9.20 for 1 toy.

Answer:

x≤ -7 or x≥ -4  

Step-by-step explanation:

There is a closed circle at -7 and the line goes to the left

x≤ -7  

There is a closed circle at -4 and the line goes to the right

x≥ -4  

Since they both can't be true at the same time it is an or

x≤ -7 or x≥ -4  

Step-by-step explanation:

5/6 = 50 minutes

50 divided by 7 = (your answer)