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Usimov [2.4K]
3 years ago
7

Which method would prove the quadrilateral is a parallelogram?

Mathematics
1 answer:
Maurinko [17]3 years ago
3 0

Answer:

Answer: Each pair of opposite sides has the same measure. Therefore, they are congruent. If both pairs of opposite sides of a quadrilateral are congruent, the quadrilateral is a parallelogram.



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Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 56.6 d
Harlamova29_29 [7]

Answer:

Computed mean = 51.6

Actual mean > computed mean

Step-by-step explanation:

Low temp. - - Freq(f) - - midpoint(x) - - fx

40−44 - - - - - 2 - - - - - - - 42 - - - - - - 84

45−49 - - - - - 7 - - - - - - - 47 - - - - - - 329

50−54 - - - - - 9 - - - - - - - 52 - - - - - - 468

55−59 - - - - - 5 - - - - - - - 57 - - - - - - 285

60−64 - - - - - 2 - - - - - - - 62 - - - - - - 124

Mean (m) = Σ(fx) / Σ(f)

Σ(fx) = 84 + 329 + 468 + 285 + 124 = 1290

Σ(f) = 2 + 7 + 9 + 5 + 2 = 25

Mean (m) = 1290 / 25

Computed mean (m) = 51.6

Actual mean = 56.6

Actual mean > computed mean

56.6 > 51.6

7 0
3 years ago
Can the side lengths of 12, 15, and 13 form a triangle?<br> Yes<br> No
tino4ka555 [31]
Yes. 12 and 13 would be the legs, and 15 would be the hypotenuse. This would form a right triangle.
4 0
3 years ago
Read 2 more answers
What is the area of this triangle?
Ludmilka [50]

Answer:

area = 1/2 *base* height

= 1/2 * 12* 9

= 54 cm^2

right triangle...

Hope this helps...

3 0
3 years ago
Can someone help out I’m really slow at this and don’t understand it please:)
myrzilka [38]

Answer:

2) 160

3) 320

Step-by-step explanation:

you want to find out the slope so use the formula

y₂-y₁/ x₂-x₁ and plug in the numbers

320-80=240

4-1=3

divide 240/3= 80

multiply 80 * (x) so if we try and find x=2 it would be 160

80 * 3 = 240

check your work by multiplying 80 and 4 (320) which is your y value! hope this helps!

7 0
3 years ago
Is -2.54 greater or less than -2 and 27/50
zloy xaker [14]
-2.54 is equal to -2 27/50
7 0
3 years ago
Read 2 more answers
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