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Svet_ta [14]
3 years ago
7

Answer to the question

Mathematics
1 answer:
Ivanshal [37]3 years ago
6 0

Answer:

Step-by-step explanation:

In a parallelogram,

i) opposite sides are equal and parallel.

So, DC = AB

DC = 28 units

ii) Diagonals bisect each other.

AC bisects BD

DE =  EB = \frac{1}{2} BD

DE = \frac{1}{2}*91 = 45.5

DE = 45.5 units

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a quadrilateral has exactly 3 congruent sides davis claims that the figure must be a rectangle why is his claim incorrect explai
vlada-n [284]
Davis's claim was incorrect because a rectangle sometimes only have 2 congruent sides. Drawing a rectangle, the length/width would be longer than their length/width. Unless it is a square, it counts as correct as a square can be counted as a rectangle and a rectangle can not be counted as a square but anyways, congruent means equal sides. The rectangle, mostly drawn, only has two long sizes and two short sides, both opposides are equal. Hence, the claim Davis said is incorrect.
8 0
3 years ago
Find the slope of every line that is perpendicular to this one pls help i’m dumb
Leya [2.2K]

Answer:

-1/2 or -0.5

Step-by-step explanation:

Easy Peasy

3 0
3 years ago
Read 2 more answers
Help me!!! I need help ASAP
tia_tia [17]

9514 1404 393

Answer:

  y = 3.02x^3 -5.36x^2 +5.68x +8.66

Step-by-step explanation:

Your graphing calculator (or other regression tool) can solve this about as quickly as you can enter the numbers. If you have a number of regression formulas to work out, it is a good idea to become familiar with at least one tool for doing so.

__

If you're trying to do this by hand, the x- and y-values give you 4 equations in the 4 unknown coefficients.

  a·1^3 +b·1^2 +c·1 +d = 12

  a·3^3 +b·3^2 +c·3 +d = 59

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  a·8^3 +b·8^2 +c·8 +d = 1257

Solving this by elimination, substitution, or matrix methods is tedious, but not impossible. Calculators and web sites can help. The solutions are a = 317/105, b = -75/14, c = 1193/210, d = 303/35. Approximations to these values are shown above.

8 0
2 years ago
What is the median of the data displayed in this box-and-whisker plot? A.41 B.49 C.55 D.58
lutik1710 [3]
The median in a whisker plot is the dot or line in the box on the line. In this case, the dot is at 41, so the median is 41.

ANSWER: A) 41 is the median

Hope this helps! :)
7 0
3 years ago
Read 2 more answers
Something added by -8 equals 20
LiRa [457]

Answer:

28 is added by -8 equals 20

Step-by-step explanation:

The equation to calculate something added by -8 equals 20 is as follows:

x-8 = 20

x = 20+8

x = 28

28 is added by -8 equals 20

8 0
3 years ago
Read 2 more answers
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