2 years ago

I’ll give brainliest to whoever answers thiss

Mathematics

1 answer:

andrey2020 [161]2 years ago

6 0

Answer:

21.25

Step-by-step explanation:

diagonal is 21.25

the area is 216.75

the perimeter is 59.5

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(32 + 9 − 1) + (−52 + 6 − 10)

egoroff_w [7]

Answer:

-16

Step-by-step explanation:

$(32+9-1)+(-52+6-10) \\ \\ =(41-1)+(-46-10) \\ \\ =40-56 \\ \\ =-16$

3 0

1 year ago

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PLEASE HELP ME QUICKLY!!!!!!!!!!!!!!!!

Lina20 [59]

Answer:

X=35°

Step-by-step explanation:

Opposite angles x=35°

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3 years ago

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The width of a rectangle is 7y -7.5 feet and the length is 7.5y + 8 feet. Find the perimeter of the rectangle

galben [10]

Perimeter = length + length + width + width.

7y-7.5 + 7y-7.5 + 7.5y+8 + 7.5y +8

Combine like terms:

29y+1

The perimeter is 29y + 1 feet

5 0

3 years ago

What are the coordinates of each point after quadrilateral ABCD is reflected across the y-axis and then translated 2 units down?

zheka24 [161]

Answer:

$A" =(-1,-1)$ $B" =(-2,1)$

$C" =(-4,1)$ $D" =(-5,-1)$

Step-by-step explanation:

Given

$A = (1,1)$ $B =(2,3)$

$C = (4,3)$ $D = (5,1)$

Required

The new coordinates after reflected across y-axis and shifted 2 units down

When a point is reflected across the y-axis, the rule is:

$(x,y)=>(-x,y)$

So:

$A = (1,1)$ $=> A' = (-1,1)$

$B =(2,3)$ $=> B' = (-2,3)$

$C = (4,3)$ $=> C' = (-4,3)$

$D = (5,1)$ $=> D' = (-5,1)$

When a point is translated 2 units down, the rule is:

$(x,y) => (x,y-2)$

So:

$A = (1,1)$ $=> A' = (-1,1)$ $=> A" =(-1,-1)$

$B =(2,3)$ $=> B' = (-2,3)$ $=> B" =(-2,1)$

$C = (4,3)$ $=> C' = (-4,3)$ $=> C" =(-4,1)$

$D = (5,1)$ $=> D' = (-5,1)$ $=> D" =(-5,-1)$

So, the new coordinates are:

$A" =(-1,-1)$ $B" =(-2,1)$

$C" =(-4,1)$ $D" =(-5,-1)$

5 0

2 years ago

Ise9urgyobrhrstbydfdsfwefwefsdfewfds

ELEN [110]

Yeah I think x=12y on this one correct me if I’m wrong

3 0

2 years ago