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Darina [25.2K]
3 years ago
7

Please answer number 20 with work!

Mathematics
2 answers:
JulsSmile [24]3 years ago
7 0

Answer:

A

x/64 = 36/36

this is the answer

asambeis [7]3 years ago
7 0

Answer:

C

Step-by-step explanation:

when doing proportions you have to align your fractions accordingly.

we are putting x over 64 which means that small triangle in the top and big triangle in the bottom. On the other side its going to be 36 because of the small triangle's side and in the bottom we put the big triangle's side which will be 72 because 36+36=72

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25 POINTS
Semenov [28]

If the slope of AB = CD and BC = AD it's a parallelogram:

Slope of AB = 6+1 / -9+5 = -7/4

CD = -2-5 / 3+1 = -74

These are equal.

BC = 5-6 / -1 +9 = -1/8

AD = -2 +1 / 3+5 = -1/8

These are also equal so it is a parallelogram.

Now to find if the diagonals are perpendicular find the slope of the perpensicular points:

AC = 5 +1 / -1 +5 = 6/4 = 3/2

BD = 6+2 / -9 -3 = 8/-12 = -2/3

Because BD is the reciprocal of AC, this means they are perpendicular.

And because AB is not perpendicular to AD ( AB and AD are not reciprocals) it is a rhombus.

5 0
3 years ago
Each model represents one whole. In which model does the shaded section represent the product of 5/8 and 3/8?
Mnenie [13.5K]
We can’t answer this question without a photo of the model. Can you post a photo of the question?
8 0
3 years ago
The length of a rectangle is four times its width. If the perimeter of the rectangle is 20 feet, how many feet long is the recta
Gemiola [76]
Largeur = x
longueur = 4 x 

2 ( x + 4 x) = 20
2 x + 8 x = 20 
10 x =20
x = 2

largeur  = 2 et longueur = 8
8 0
3 years ago
PLEASE HELP SO I CAN PASS MY TEST
Brums [2.3K]

Answer:

10

Step-by-step explanation:

The first thing to do would be to find how many 1/4 cups are in the 1 cup. Divide 1 by 1/4 and you'd get 4.

Just multiply 2 1/2 by 4 and you get 10

8 0
3 years ago
Read 2 more answers
If g(r) =2(r-1), Find g(10)
garri49 [273]

Answer:

g(r) = 18

Step-by-step explanation:

Substitute 10 into r

g(10) = 2( (10) -1)

        = 2(9)

        = 18

7 0
3 years ago
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