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Sever21 [200]
3 years ago
8

In the diagram, polygon ABCD is flipped over a line of reflection to form a polygon with its vertices at A, B, and D are shown,

but the line of reflection and point C are not

Mathematics
2 answers:
beks73 [17]3 years ago
6 0
The line of reflection is at 5 on the x-axis. C is at the point,(6,2)
neonofarm [45]3 years ago
3 0

Answer:

The line of reflection must be x=5

Step-by-step explanation:

Here, C = (4, 2) & C' = (6, 2)

And the reflection here is across y-axis on x-axis.

The value of y is not changing with reflection, so the line of reflection will be:

(4+6)/2=10/2=5

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Which is equivalent to cos^-1(0) answer in radian
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Answer:

Step-by-step explanation:

cos ^-1(0)=(2n+1) π/2

where n is an integer.

if 0 ≤α ≤2 π

n=0,1

cos ^-1(0)=π/2,3π/2

8 0
3 years ago
Solve the system of equations.<br><br> 5x + y = 9<br> 3x + 2y = 4
tiny-mole [99]
Y=-5x+9

3x+2(-5x+9)=4
3x-10x+18=4
-7x=4-18
-7x=-14
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5(2)+y=9
10+y=9
y=9-10
y=-1

The answer is (2,-1) :)
5 0
3 years ago
Read 2 more answers
I need help and is timed please help?!!!!!
Xelga [282]

Answer:

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6 0
2 years ago
Of the 1,640 students enrolled at a school, 50% come to school by bus, 35% come by car, and the rest of the students walk home.
ehidna [41]
So first we need to find what percent of the students walk to school. 

50 + 35 = 85% don't walk leaving only 15% that walk to school, 

To find the 15% percent that DO walk we multiply .15 by the total number of people. 

.15 x 1640 = 246 people walk to school 
3 0
3 years ago
Read 2 more answers
Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is 2x2+1 inches. She p
defon

Step-by-step explanation:

perimeter \: of \: first \: pillow \: is \:  \\ 4(2 {x}^{2} + 1) \\ perimeter \: of \: second \: pillow \: is \:  \\ 4(4x - 7) \\ so \: we \: need \: compeletly \: 4(2 {x}^{2} + 1) + 4(4x - 7) \: ribbons. \\ 8 {x}^{2} + 4 + 16x - 28 = 8 {x}^{2} + 16x - 24 =  \\ 8( {x}^{2}   + 2x - 3) = 8(x + 3)(x - 1) \\ 8(3.5 + 3)(3.5 - 1) = 8(6.5)(2.5) = 8 \times 2.5 \times 6.5 = 20 \times 65 \times  {10}^{ - 1} = 1300 \times  {10}^{ - 1} = 130 \\ and \: we \: are \: done.

i hope i have been useful buddy.

good luck ♥️♥️♥️♥️♥️.

6 0
3 years ago
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