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lina2011 [118]
3 years ago
12

I need help with the questions circled, please help!1!

Mathematics
1 answer:
erastova [34]3 years ago
6 0

see attached picture for answers

 couldn't see the whole equation for 29 though.

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Given: rectangle ABCD is similar to rectangle ZBXY. If ZY = 5, XC = 3, DC = 4, then XY =
soldier1979 [14.2K]

Answer:

The length of XY is either 10 or 2.5.

Step-by-step explanation:

Given information: ZY = 5, XC = 3 and DC = 4.

Case 1: Rectangle ABCD is smaller than ZBXY.

The opposite sides of the rectangle are same.

ZY=BC+XC

5=BC+3

2=BC

The length of ABCD is 4 and width of ABCD is 2. The width of ZBXY is 5. The corresponding sides of the similar rectangles are is in the same proportion.

\frac{4}{XY}=\frac{2}{5}

\frac{4\times 5}{2}=XY

10=XY

Therefore the value of XY is 10.

Case 2: Rectangle ABCD is larger than ZBXY.

ZY=BC-XC

5=BC-3

8=BC

The length of ABCD is 4 and width of ABCD is 8. The width of ZBXY is 5. The corresponding sides of the similar rectangles are is in the same proportion.

\frac{4}{XY}=\frac{8}{5}

\frac{4\times 5}{8}=XY

2.5=XY

Therefore the value of XY is 2.5.

7 0
3 years ago
Read 2 more answers
Solve the system by the substitution method -4x + 3y = -7 y = 2x - 5
bagirrra123 [75]

Answer: x=4 and y= 3


Step-by-step explanation: Solve for the first variable in one of the equations, then substitute the result into the other equation


8 0
3 years ago
How to expand and simplify 5(3p+2)-2(5p-3)
Luda [366]
5(3p+2) - 2(5p-3)     Distribute the 5 and the 2
(5*3p) + (5*10) + (-2*5p) + (-2*-3)
15p + 50 - 10p + 6      Combine like terms
5p + 56
5 0
3 years ago
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You are part of a rowing team. Every 1, miles you stop to take a drink of water. How many times will you stop to drink water if
musickatia [10]

Answer:

10 stops I think as the 0.2 is not a full mile so you dont stop

Step-by-step explanation:

4 0
3 years ago
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Find the area of the polygon with vertices (1, 2) (1, -5) (5, -5) (5,2)
Svetradugi [14.3K]

Answer:

28 square units

Step-by-step explanation:

These vertices are written in the form of their x and y coordinates. Let

A=(1,2) ; B =(1,-5) ; C =(5, -5) ; D=(5,2)

The x points are 1, 1, 5, 5

The y points are 2,-5, -5, 2

The x extremes range from 1 to 5. The length  in-between is 5-1 = 4

The y extremes range from -5 to 2. The length  in-between is 2-(-5) = 7

Area of the polygon enclosed by the coordinates

   = 4 x 7 = 28 square units

5 0
3 years ago
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