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Alex
2 years ago
6

Which equation has a vertex at (3,-2) and directrix of y = 0?

Mathematics
1 answer:
bija089 [108]2 years ago
4 0

Answer:

<h3>C: y+2=-1/8(x-3)^2</h3>

Edge 2021

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Which of the following operations is true regarding relative frequency distributions? Multiple choice question. No two classes c
pshichka [43]

Answer:

The relative frequency is found by dividing the class frequencies by the total number of observations

Step-by-step explanation:

Relative frequency measures how often a value appears relative to the sum of the total values.

An example of how relative frequency is calculated

Here are the scores and frequency of students in a maths test

Scores (classes)              Frequency                Relative frequency

0 - 20                                10                               10 / 50 = 0.2

21 - 40                               15                               15 / 50 = 0.3

41 - 60                               10                               10 / 50 = 0.2

61 - 80                                5                                 5 / 50  = 0.1

81 - 100                             <u> 10</u>                                10 / 50 = <u>0.2</u>

                                          50                                               1

From the above example, it can be seen that :

  1. two or more classes  can have the same relative frequency
  2. The relative frequency is found by dividing the class frequencies by the total number of observations.
  3. The sum of the relative frequencies must be equal to one
  4. The sum of the frequencies and not the relative frequencies is equal to the number of observations.

4 0
3 years ago
Simplify 3x-7y-(-2X)-y​
luda_lava [24]

Answer:

5x+6y

Step-by-step explanation:

just add like terms

5 0
3 years ago
Read 2 more answers
What are the acceptable diameters for the golf balls? 42.675 mm 42.6668 mm 42.664 mm 42.673 mm 72.676 mm
cluponka [151]

Answer: 42.6668mm and 42.673mm

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
PLS HELP ME WITH IS QUESTION
Alenkasestr [34]

Answer:

There are 7 plants in the garden.

Step-by-step explanation:

8 + 6 (Half dozen) = 14

98 divided by 14 = 7

I hope I helped.

7 0
3 years ago
What percent is 25 of 80? Please help
Neko [114]
The answer would be 20 .
5 0
3 years ago
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