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Tju [1.3M]
3 years ago
11

Explain to a new student how a reflection across the y-axis changes the coordinates of the original point.

Mathematics
1 answer:
RSB [31]3 years ago
6 0
If you were to have (3,2) and find the reflection of the y axis, it would turn y into a negative, making it (3,-2).
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Sydney paid 25% of the original price for a sweater. if Sydney paid $8 for the sweater what was the original price​
KengaRu [80]

Answer:

Original price was $32

Step-by-step explanation:

25/100=8/x

3 0
3 years ago
Read 2 more answers
The width of a human hair is 2 x 10-5 meters. The width of a piece of sand is 1.5 x 10¹ meters.
Elena L [17]

The difference in the widths, in meters, of the human hair and the piece of sand is 1.4998*10^{-1} m.

It is given in the question that:-

Width of a human hair = 2*10^{-5} m

Width of a piece of sand = 1.5*10^{-1}m

We have to find the difference in the widths, in meters, of the human hair and the piece of sand.

We know that,

Difference between the widths = Width of a piece of sand - Width of a human hair

Hence, we can write,

Difference between the widths =  2*10^{-5} m - 1.5*10^{-1}m

We can write,

1.5*10^{-1}=15000*10^{-5}

Hence,

Difference between the widths =

15000*10^{-5} - 2*10^{-5}= 14998*10^{-5} = 1.4998*10^{-1} m

To learn more about Width, here:-

brainly.com/question/17156323

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8 0
1 year ago
Can someone please help me out
const2013 [10]

Answer:

x = 8, A = 182 units²

Step-by-step explanation:

The perimeter P of a rectangle is calculated as

P = 2l + 2b ( l is the length and b the breadth )

Given P = 66, then

2(7) + 2(3x + 2) = 66 ← distribute and simplify left side

14 + 6x + 4 = 66

6x + 18 = 66 ( subtract 18 from both sides )

6x = 48 ( divide both sides by 6 )

x = 8

Then

3x + 2 = 3(8) + 2 = 24 + 2 = 26, so

A = 7 × 26 = 182 units²

8 0
2 years ago
Solve by substitution <br> X+3y=1 and -3x-3y=-15
joja [24]
x+3y=1\\ -3x-3y=-15\\ add\quad the\quad equ.\\ (x+3y)+(-3x-3y)=1-15\\ x-3x+3y-3y=-14\\ -2x=-14\\ x=\frac { -14 }{ -2 } \\ x=7\\ Let's\quad rewrite\quad the\quad equ.\\ 7+3y=1\\ 3y=1-7\\ 3y=-6\\ y=\frac { -6 }{ 3 } \\ y=-2
3 0
2 years ago
Misha Increased Her Test Score From 60% To 80%. What Was The Approximate Percent Increase Of Misha’s Test Score?
jekas [21]

Answer:

20%

Step-by-step explanation:

80-60=20

5 0
3 years ago
Read 2 more answers
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