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Tanya [424]
3 years ago
6

A circle has a circumference of 47.1 cm and a diameter of 15 cm.

Mathematics
1 answer:
stira [4]3 years ago
7 0
Circumference/diameter= 47.1/15=3.14
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What is the reflection in the x-axis & what’s the reflection in line y=x?
marishachu [46]

Answer:

  a) (3, -4), (2, 4), (-5, -6)

  b) (4, 3), (-4, 2), (6, -5)

Step-by-step explanation:

a) Reflection in the x-axis negates the y-coordinate:

  (x, y) ⇒ (x, -y)

  (3, 4) ⇒ (3, -4)

  (2, -4) ⇒ (2, 4)

  (-5, 6) ⇒ (-5, -6)

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b) Reflection in the line y=x swaps the x- and y-coordinates:

  (x, y) ⇒ (y, x)

  (3, 4) ⇒ (4, 3)

  (2, -4) ⇒ (-4, 2)

  (-5, 6) ⇒ (6, -5)

8 0
4 years ago
What is it !, help !
Gala2k [10]

Answer:

an isosceles triangle

Step-by-step explanation:

it has two equal sides so this is isosceles triangle

7 0
3 years ago
Pls help<br> math work<br> bleh
Rina8888 [55]

Answer:

  1. j = 8
  2. j = 3
  3. j = 6

I hope this helps!

8 0
3 years ago
3. Triangle JKL is shown below. Which of the following is not a true statement about
alina1380 [7]

Option A is true because the sum of angles in a triangle is 180, so we can rule that one out immediately.

We can solve for x for the other 3 options by setting up this equation:

7x+2 + 4x+7 + 8x = 180 | Simplify

19x + 9 = 180 | Subtract 9

19x = 171 | Divide by 19
x=9

Now we can substitute x into all the values:
<J = 7x+2 = 65
<L = 4x+7 = 43
<K = 8x = 72


Looking at the options again, we can see that A, B, and D are true, leaving C to be false.

4 0
2 years ago
Tommy goes to Lowe's to buy some supplies for his yard. He buys 4 plants for n dollars, a 10-gallon bucket for $10, and a bag of
Step2247 [10]

Answer:

  4n +28

Step-by-step explanation:

Tommy's purchases add up to ...

  4n +10 + 18 = 4n +28

7 0
3 years ago
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