Can someone plz help

Mathematics

2 answers:

AVprozaik [17]2 years ago

7 0

Answer:

b is right answer 225 in saqu

8090 [49]2 years ago

6 0

Area of a square is l x w=9x9=81
Area of a triangle is 1/2(bxh)=1/2(9x7)=31.5
As there r 4 triangles, multiply 31.5 by 4 to get the tot surface area of the triangles as 126.
Now add the square area to the triangles area for the total surface area.
126+81=207
D is the answer

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NISA [10]

The maximum number of shrubs (x) = a(area) divided by 15.9

a(area)=37.1*15
37.1*15= 556.5
556.5/15.9=x
556.5/15.9=35
35=x

6 0

3 years ago

It says to place points on them but i still don't get it. help please.

xxTIMURxx [149]

Answer: A'=(1, 3); B'=(-3, 4);C'=(3, 0); D'=(-2, 5)

You can check the PNG attached as well.

Step-by-step explanation:

You need to represent the symmetry of every given points respet to the line

$y = 2$

In that case, the line beeing paralell to the x- axis, x- value of the symmetry is the same of the given point and y = 2 is the middle between both points.

Point A(1, 1)

$x_{A} = 1\\ x_{A'} = 1 \\\\\frac{y_{A} +y_{A'} }{2} =2\\y_{A'} = 4 - y_{A} = 4 - 1 = 3$