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3 years ago

How do you do this I'm confused?

Mathematics

1 answer:

amm18123 years ago

5 0

1st arrange the data points from smaller to larger:

32 35 38 40 42 46 48 | 48 50 51 52 53 54 55 56
|    |
|    Median( 48+48)/2 = 48
1st Quartile
   = 40

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In quadrilateral ABDC, AB ∥ CD. Which additional piece of information is needed to determine that ABDC is a parallelogram? AB ≅

siniylev [52]

For any quadrilateral to be a parallelogram

i) either both the pairs of opposite sides must be equal

ii) Both the pairs of opposite sides must be parallel

iii) Opposite pairs of angles must be equal

iv) Diagonals must bisect each other.

v) A pair of opposite sides must be parallel and equal

Here we are already given that AB || CD

So either we should be given that AD || BC

or we must be given that AB = CD

Here it is given AB = CD as an option.

So Option A) or the first option is the right answer that AB ≅CD is needed to prove ABCD is a parallelogram.

7 0

4 years ago

Read 2 more answers

Leo has already taken 1 page of notes on his own, and he will take 1 page during each hour

sattari [20]

Answer:

49 Hours

Step-by-step explanation:

If it takes him 1 hour to finish 1 page of notes and he already finished 1, he would need to do a total of 49 hours to get 49 more pages done.

Hope this helps!

8 0

3 years ago

Point C is on line segment \overline{BD} BD . Given CD=x,CD=x, BC=5x-5,BC=5x−5, and BD=2x+7,BD=2x+7, determine the numerical len

NARA [144]

Answer:

$CD = 3$

Step-by-step explanation:

Given

$CD = x$

$BC = 5x - 5$

$BD = 2x + 7$

Required

Determine CD

Since, C is a point on BD, the relationship between the given parameters is;

$BD = BC + CD$

Substitute the values of BD, BC and CD

$2x + 7 = 5x - 5 + x$

Collect Like Terms

$2x - 5x - x = -5 - 7$

$-4x = -12$

Divide both sides by -4

$\frac{-4x}{-4} = \frac{-12}{-4}$

$x = 3$

To determine the length of CD;

Substitute 3 for x in $CD = x$

Hence;

$CD = 3$

3 0

3 years ago

Plot 1 х X X х X х xxxx+ Use visual clues to decide which plot has the highest measure. No calculations should be necessary, alt

SOVA2 [1]

Answer:

Step-by-step explanation:

3 0

3 years ago

How many different arrangements can be made using all of the letters in the word Iowa?

Alika [10]

1. Check the tree diagram in the attached picture.

2. The first Letter can be one of the letters I, O , W or A. Assume your first letter is I, then you have 3 choices for the second letter, that is O, W or A.

3. Assume you pick O, then you have 2 options for the third letter; W or A.

4. If you pick A, then the last letter can only be W.

5. the path described is the "red line path" in the picture; that is the arrangement IOAW.

6. Another path is the "dashed line path" IAOW.

7. We count 6 "paths", where I is the first letter, each "path" standing for one arrangement.

8. 4*6=24 is the total number of paths, that is arrangements of the letters IOWA.

9. Remark: The first choice is 4, combined (multiplied) by 3 choices for the second letter, combined (multiplied) by 2 choices for the third and finally multiplied by 1.

10. Thus there are 4*3*2*1 arrangements of 4 (different) letters.

5 0

3 years ago