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slavikrds [6]
3 years ago
10

Is line m: -x+2y=6 parallel, perpendicular, or neither parallel nor perpendicular to line n: y=-2x+6?

Mathematics
1 answer:
Serhud [2]3 years ago
7 0
Make them both equal to y

y=-2x+6

2y=x+6 y=1/2x+3

These are perpendicular since ones slope is -2 and the other is the opposite, 1/2.
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Match the name of the sampling method descriptions given.Situations 1. divide the population by age and select 5 people from eac
USPshnik [31]

Answer:

1. ⇔ b.

2. ⇔ a.

3. ⇔ c.

4. ⇔ e.

5. ⇔ d.

Step-by-step explanation:

We conclude that:

5. asking people on the street Sampling is (d.) Convenience.  

4. randomly select two tables in the cafeteria and survey all the people at those two tables is (e.) Cluster.

3. choosing every 5th person on a list is (c.) Systematic.

1. divide the population by age and select 5 people from each age is (b.) Stratified.

2. writing everyones name on a playing card, shuffling the deck, then choosing the top 20 cards is (a.) Simple Random.

6 0
4 years ago
What is 8 3/4%expressed as a fraction?
const2013 [10]

Answer:7/80

Step-by-step explanation:

sart with the:  " 8   "  portion:

Start with the:  "  "  portion :

Note:  "  " ;

                          =  3/4 ;

                          =  3 ÷ 4 ;  {use calculator} ;

                          =  0.75  .

_________________________________________________

Or;  recognize, from experience, that:  "3/4" = " 0.75 " .

_________________________________________________

Or:  Calculate as follows:

         →  "   =  " ;  

         

         →   Solve for the:  "(?)" value:

__________________________________________________

Consider the "denominator" portions:

        →  " 4 * {what value?} = 100 " ;

        →  100/4 = 100 ÷ 4  = 25 ;  

        →  So:  " 4 * {25}  = 100 ;

Now, consider the "numerator" portions:

        →  " 3 * {25}  = "{?}" ;

        →  " 3 * {25}  = " 75 " ;

__________________________________________________

Now, we can rewrite the expression;

          & replace the "{?}" — with:  " 75 " ;  as follows:

__________________________________________________

The original expression:

         →  "   =  " ;  

Rewrite as:

         →  "   =  " ;  

_______________________________________________

Note:  "  "  ;

                      =   75 / 100  =  75 ÷ 100 ;  

         →   Use calculator:   = 0.75 ;

_______________________________________________

                              Or:  75 ÷ 100 = ? ;

    →  Note:  when dividing by "100" ; we take the original value, and move that number backward "2 (two) decimal spaces".  We move "backward" because we are "dividing" (not "multiplying") ; and we move 2 (two) decimal spaces because:  " 100" has 2 (two) zeros.

    →  " 75 ÷ 100  =  75.  ÷  100  =  .75  ;

                              →  Write as:  " 0.75.

_______________________________________________

So:  " 8   "  ;

         =  8  +    ;

         =   8  + 0.75 ;

        =   8.75  .

_______________________________________________

So:  " 8  % " ;  

         =  8.75 % ;

_________________________________________

Note that " % " ;  refers to parts per hundred;  or:  "divided by 100" ;

_______________________________________________

      →  So:   " 8.75 % " ;

                 = 8.75 / 100 = 8.75 ÷ 100 ;  

      →  Use calculator; to get:  " 0.0875 " .

_______________________________________________

Or:  " 8.75 ÷ 100 " ;   →  As aforementioned, when dividing by "100" ;

                                  we move the decimal point "backward 2 (two) spaces:

     →   " 8.75 ÷ 100  =  .0875 ;

                         →  Write as:  " 0.0875 " .

_______________________________________________

Now, let us convert this value to a "fraction value" ;

   →  We have:  " 0.0875 ;

We look at the last consecutive non-zero digits:  "875" .

  →  How many decimal spaces backward from "875" ;  specifically, the digit, "5" ;  are there (counting backward; to the actual decimal point)?

 →  0.0875 .  →  The answer is:  "4 (four)" ;  which are: 5, 7, 8, and 0 " .

                              {Refer to digits in "bold font".}.

_______________________________________________

So, this value:  " 0.0875 " ;  

         →  is equal to:  " 875 " ÷ { 1 followed by 4 [four] zeros } ;

_______________________________________________

                              =  " 875 ÷ 10000 " ;

 

                              = " 875 ÷ 10,000 " ;

_______________________________________________

 Using a calculator:

      " 875 ÷ 10,000 "  = "  " ;

______________________________________________

   

                                   = "  " .

______________________________________________

The answer is: "   " .

______________________________________________

Hope this is helpful to you!

      Best wishes to you!

______________________________________________

   

Kaneppeleqw and 29 more users found this answer helpful

THANKS  

12

4.0

(18 votes)

Answer

5.0/5

9

sweettrixie68

Ambitious

9 answers

453 people helped

Answer:

7/80

Step-by-step explanation:

8 3/4%

(8*4+3) / 4%

35)/4

100           divide by 100 to convert to fraction

35/400

7/80

8 0
3 years ago
Read 2 more answers
[(√4 + 3)2 – 9] / (√9 – 1)3 * 2
Ket [755]

Answer:

\frac{1}{12}

Step-by-step explanation:

\frac{(\sqrt{4} + 3)2 - 9}{ (\sqrt{9} - 1)3 * 2}=\frac{(2+3)2-9}{(3-1)6}=\frac{10-9}{2*6}=\frac{1}{12}

8 0
3 years ago
You have a standard deck of cards. What is the probability of drawing a heart or a face card?
Flura [38]

Answer:

3/4

Step-by-step explanation:

5 0
3 years ago
Help pls can u help me ​
insens350 [35]

Answer:

i think i can just wait a min an an you copy or write the sentence in the comment

Step-by-step explanation:

3 0
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