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DanielleElmas [232]
3 years ago
8

!100 POINTS PLEASE ANSWER QUICK NO LINKS!

Mathematics
2 answers:
aksik [14]3 years ago
8 0

Answer:

  • 4 units

Step-by-step explanation:

<u>Given points:</u>

  • (−2, −4) and (−2, −8)

<u>Since the x-coordinates are same, the distance between them is the absolute value of the difference in y- coordinates:</u>

  • d = |-8 - (-4)| = | - 4| = 4
Mkey [24]3 years ago
4 0

Answer:

4 units

Step-by-step explanation:

Calculate the distance d using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = (- 2, - 4 ) and (x₂, y₂ ) = (- 2, - 8 )

d = \sqrt{(-2-(-2))^2+(-8-(-4))^2}

  = \sqrt{(-2+2)^2+(-8+4)^2}

  = \sqrt{0^2+(-4)^2}

  = \sqrt{0+16}

  = \sqrt{16}

  = 4

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2) A salesperson earns commission on the sales that she makes each month.
mixer [17]
Part A
Commission total = Commission 1+ Commission 2
Where
Commision 1 = 5% of first 45000
Commission 2 = 7.5% of the amount left after $5000 is subtracted
thus 
Commision 1 = $5000x.05
                      = $250

Commission 2= $3000 x.075
                        = $225
Commission total = $250+$225
                              = $475
The total commission she earned is $475ion

Part B.
Total sales = Sales with 5% commission+Sales with 7.5% commission
Sales with 5%commission= $5000
Commision At 7.5% = Total commision -Commission with 5%
                           =    $1375-$250
              Sales x.075=  $1125
              Sales with 7.5% commision = $15000
Total sales = $5000+$15000
Total sales = $20000
Total sales for commission of $1375 is $20000

3 0
3 years ago
For what value of k are the roots of the quadratic equation kx (x-2)+6=0 equal?​
ser-zykov [4K]

Answer:

\boxed{\sf k=6}

Step-by-step explanation:

\sf kx (x-2)+6=0

Expand brackets.

\sf kx^2 -2kx+6=0

This is in quadratic form.

\sf ax^2 +bx+c=0

Since this is for equal roots:

\sf b^2 -4ac=0

\sf a=k\\b=-2k\\c=6

\sf (-2k)^2 -4(k)(6)=0

\sf 4k^2-24k=0

\sf 4k(k-6)=0

\sf 4k=0\\k=0

\sf k-6=0\\k=6

Plug k as 0 to check.

\sf \sf 0x^2 -2(0)x+6=0\\6=0

False.

So that means k must equal 6.

3 0
4 years ago
Can somebody please help
Digiron [165]

i honestly don't know :-l

7 0
3 years ago
Read 2 more answers
PLZ HELP !!!!!!!!!
ZanzabumX [31]

Answer:


Step-by-step explanation:

E.

Because

30+20=50

and

30-20 = 10

7 0
3 years ago
Read 2 more answers
Eric's chocolate bar is 56% cocoa. If the weight of the chocolate bar is 78 grams, how many grams of cocoa does it contain? Roun
alexgriva [62]

Answer:

The answer to your question is 43.7 g of chocolate

Step-by-step explanation:

Data

56% cocoa

mass of a chocolate bar = 78 g

Process

To solve this problem, use proportions and cross multiplication, consider the mass of the bar is 100%.

                          78 g of chocolate ------------------- 100%

                             x                          ------------------    56%

                                            x = (56 x 78) / 100

                                            x = 4368/100

                                            x = 43.68 g

-Round to the nearest tenth

             Mass of the chocolate = 43.7 g

8 0
3 years ago
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