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Marianna [84]
3 years ago
12

Which information is not necessary to solve this problem? 

Mathematics
1 answer:
mamaluj [8]3 years ago
3 0
C. forty guests were invited
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Find the area of each parallelogram. What is the relationship between the areas?
castortr0y [4]

Answer:

Area of parallelogram is given by:

A = bh

where b is the base and h is the height of parallelogram.

In parallelogram TQRS.

Coordinate of TQRS are;

T(8, 16), Q(4, 4), R(16, 4) and S(20, 16)

Coordinate of T'Q'R'S' are;

T'(2, 4), Q'(1, 1), R'(4, 1) and S'(5, 4)

Find the length of QR and PT:

Using distance(D) formula:

D = \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}

QR = \sqrt{(4-16)^2+(4-4)^2} =\sqrt{(-12)^2+0}= \sqrt{144}= 12 units

Similarly;

For PT:

From the graph:

P(8, 4) and T(8, 16), then

PT = \sqrt{(8-8)^2+(4-16)^2} =\sqrt{(-0)^2+(-12)^2}= \sqrt{144}= 12 units

In parallelogram TQRS

PT represents the height and QR represents the base of the parallelogram respectively.

then;

Area of parallelogram TQRS = QR \cdot PT

⇒Area of parallelogram TQRS = 12 \cdot 12 = 144 unit square.

Now, in parallelogram T'Q'R'S'

Q'R' represents the base and P'T' represents the height of the parallelogram respectively.

here, P'(2, 1)

Find the length of Q'R' and P'T':

Q'R' = \sqrt{(1-4)^2+(1-1)^2} =\sqrt{(-3)^2+0}= \sqrt{9}= 3 units

P'T' = \sqrt{(2-2)^2+(1-4)^2} =\sqrt{(-0)^2+(-3)^2}= \sqrt{9}= 3 units

Then;

Area of parallelogram T'Q'R'S' = Q'R' \cdot P'T'

Area of parallelogram T'Q'R'S' = 9 \cdot 9= 81 unit square.

Now, we have to find the relationship between the areas.

\frac{\text{Area of parallelogram TQRS}}{\text{Area of parallelogram T'Q'R'S'}} = \frac{144}{81}

then;

the relationship between the areas of TQRS and T'Q'R'S' is:

\text{Area of parallelogram TQRS} = \frac{144}{81} \cdot {\text{Area of parallelogram T'Q'R'S'}



7 0
3 years ago
Fatima has 3 gallon of milk. She
tatiyna

Answer:

1/2 of a gallon

Step-by-step explanation:

3 divided by 6 is 1/2

6 0
3 years ago
Read 2 more answers
Baileigh is using a piece of string to hang a painting on the wall. The back of the painting is diagrammed below.
Stels [109]
We can use Pythagoras to find this out

The length of each string would be : 
x^2  = 36^2 + 15^2

x^2  = 1521

x    =   √1521
      = 39

Total length of the string  = 39 + 39

= 78 centimeters



6 0
4 years ago
-2x+6=28 and -18=-3x+6
Arte-miy333 [17]

Answer:

1. x=-11

2.  x=8

Step-by-step explanation:

-2x+6=28

Subtract 6 from each side

-2x+6-6 = 28-6

-2x = 22

Divide by -2

-2x/-2 = 22/-2

x = -11


-18=-3x+6

Subtract 6 from each side

-18 -6 = -3x +6-6

-24 = -3x

Divide by -3

-24/-3 = -3x/-3

8 =x

6 0
3 years ago
What is the y-intercept of the function in the table?
kirza4 [7]
The y intercept is the starting point of a graph, which is 0. find 0 in the graph. that’s your y intercept. (0,8)
6 0
2 years ago
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