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kramer
4 years ago
13

If A(2,4) is reflected over the x-axis, what are it’s new coordinates ?

Mathematics
1 answer:
Sav [38]4 years ago
3 0

Answer:

(2,-4)

Step-by-step explanation

When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is transformed into its opposite (its sign is changed). If you forget the rules for reflections when graphing, simply fold your paper along the x-axis (the line of reflection) to see where the new figure will be located.

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natali 33 [55]

Answer:

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7 0
3 years ago
$3100 boat, 5.5% sales tax
Serjik [45]

Answer:

3100.00 * 5.5% (170.50) = 3270.50

Step-by-step explanation:

3100.00 * 5.5% (170.50) = 3270.50

8 0
3 years ago
Find all values of a such that (a-3)/sqrta=-sqrta
Mariana [72]

Answer:

From the Pythagorean theorem...

 

[ distance between (a, 7)  and  (2, 1) ]2   =   [a - 2]2  +  [7 - 1]2

 

And they tell us that the distance equals  3√5  , so

 

[  3√5 ]2   =   [a - 2]2  +  [7 - 1]2

 

45   =   [a - 2]2  +  36

 

9   =   [a - 2]2

 

±√9  =   a - 2

 

± 3   =   a - 2

 

± 3  +  2   =   a

 

a  =  3 + 2  =  5          or          a = -3 + 2  =  -1

 

and

 

5  +  -1   =   4

Step-by-step explanation:

hope dis helps

3 0
3 years ago
if you subtract 17 from my number and multiply the difference by -6 the results is -138 what is Sarah's number
likoan [24]

Answer:

40

Step-by-step explanation:

let the unknown be y (x is used as times(multiplication) )

(y-17)x-6=-138

add /-6 to both sides

y-17x-6/-6=-138/-6

y-17=23

make y independent/add 17 to both sides

y-17+17=23+17

y=40

or in an easier way

-138/-6 =23

23+17=40

simply reversing the question to get the answer

7 0
3 years ago
What is the volume of the pool?
Fofino [41]

Answer: 7.5

Step-by-step explanation:

5 0
3 years ago
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