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Marizza181 [45]
3 years ago
9

I need some help with this question

Mathematics
1 answer:
yarga [219]3 years ago
5 0

Answer:

-7/15

Step-by-step explanation:

-4/5 translates to -12/15 and 1/3 translates to 5/15.

When you add -12/15+5/15 you get

-12+5/15 so you get -7/15


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Quadrilateral WXYZ has vertices W(-4,-3), X(0,-1). Y(6,-2), Z(2,-4). Using properties of diagonals prove that WXYZ is a parallel
yanalaym [24]

Answer:

The diagonals are bisectors of each other and meet at  (1, -5/2) but are not congruent, so WXYZ is a parallelogram and not a rectangle

Step-by-step explanation:

for parallelograms.

the diagonals intersect at the midpoints

W                             X

Z                             Y

Diagonals are  WY  and  XZ

WY :   (-4, -3) to  (6, -2)

midpoint is   [(-4 + 6)/2  ,  (-3 - 2)/2 ] = ( 1, -5/2 )

XZ :   (0, -1)  to  (2, -4)

midpoint is  [ (0 + 2)/2 ,  (-1 + -4)/2 ]  = (1, -5/2)

The diagonals are bisectors of eachother.

Next show that these diagonals are not congruent.

length of  WY  =  root (  (-4 - 6)^2  +  (-3 - (-2))^2 )

WY = root ( 100  +  1)

WY = root(101)

length of XZ  =  root (  (0 - 2)^2  +  ( -1 - -4)^2 )

XZ =  root (4  +  9) = root (13)

we see that  WY  is not equal to XZ

...

so  ..  quadrilateral WXYZ is a parallelogram but not a rectangle.

8 0
3 years ago
How do you find a rate of a number
KATRIN_1 [288]

To determine the rate of a number do the following steps:


   Multiply the number by the percent (e.g. 87 * 68 = 5916)

   Divide the answer by 100 (Move decimal point two places to the left) (e.g. 5916/100 = 59.16)

   Round to the desired precision (e.g. 59.16 rounded to the nearest whole number = 59)

8 0
3 years ago
Read 2 more answers
8.p(x) = 3 + X 2
Korvikt [17]

Answer:

*answerness*

Step-by-step explanation:

*answerness*

8 0
4 years ago
Is the portion 15 / 3 equals 2y / 7 what number is the y in the proportion
GuDViN [60]

Answer:

y = 105 ÷ 6 = 35/2

Step-by-step explanation:

∵ 15/3 = 2y/7

∴ 2y × 3 = 15 × 7

∴ 6y = 105

∴ y = 105 ÷ 6 = 35/2

4 0
3 years ago
Read 2 more answers
Please help! I will give Brainliest!
Yakvenalex [24]

Answer:

b

Step-by-step explanation:

There's only 1 orange and 1 yellow

Then there are 8 sections

therefore, 2/8 or 1/4

5 0
3 years ago
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