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Lelechka [254]
3 years ago
8

What is the image of (8,-1) after a reflection over the line y=x

Mathematics
1 answer:
hoa [83]3 years ago
4 0

Answer:

(- 1, 8 )

Step-by-step explanation:

Under a reflection in the line y = x

a point (x, y ) → (y, x ) , thus

(8, - 1 ) → (- 1, 8 )

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Mr. Rich had 2 times more cars than motorcycles in his garage. After he bought 1 more car and sold 2 motorcycles, there were 3 t
Degger [83]

Answer:

After the sale there were 15 cars and 5 motorcycles

Step-by-step explanation:

c=cars originally

m=motorcycles originally

c=2m  (2 times the cars than motorcycles)

(c+1)  bought 1 car  after sale

sold 1 motor cycle (m-2)  after sale

(c+1) = 3(m-2)   (3 times more cars than motorcycles)


(c+1) = 3(m-2)

distribute

c+1 = 3m-6

substitute c =2m

2m +1 = 3m-6

subtract 2m from each side

2m+1-2m = 3m-6-2m

1 = m-6

add 6 to each side

1+6 = m-6+6

m=7

c = 2m

c = 2(7) =14

c=14

Originally there were 7 motorcycles and 14 cars

After the sale c+1 = 15, m-2 = 5

there were 15 cars and 5 motorcycles

7 0
3 years ago
Read 2 more answers
How is the pattern changing to get from one term to the next?
valentinak56 [21]
Answer: A

Explanation: this is just something u can eye ball
7 0
3 years ago
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What is the measure of arc bc
aleksklad [387]

Answer:

100 deg

Step-by-step explanation:

As the property of inscribed angle on circle, angle BEC = (1/2)(arc BC)

=> arc BC = 2 x angle BEC = 2 x 50 = 100 deg

3 0
3 years ago
The quotient of 13÷24 is a decimal number. which digit in the quotient is overlined?<br>​
Dafna11 [192]

Answer:

6 would be the overlined number

Step-by-step explanation:

7 0
3 years ago
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PLEEEASE HELP ME, QUICK!!!! ITS WORTH 20 POINTS!!!
cricket20 [7]

Answer:

Sometimes true. It may be true at times if x or y equal each other, but if they do not equal each other it is not true

Step-by-step explanation:

We are given two expressions:  x -3 and y  - 3

Here x and y are two different variables.

These expressions are equal, when the value of x and the value of y are equal.

x - 3 = y -3 if x = y.

Therefore, the two expressions have the same value in sometimes.

That is, when x = y, then the value of two expressions are the same.

Example.

If x = 2 and y = 2, then

x - 3 = y - 3

2 - 3 = 2 - 3

-1 = -1

If they have different values, for x =  2 and y = 3

x - 3 = y - 3

2 - 3 = 3 -3

-1 = 0

Which is not true.

Therefore, the answer is sometimes.

7 0
3 years ago
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