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Ipatiy [6.2K]
4 years ago
11

What is the diameter of 78.5

Mathematics
1 answer:
Dmitrij [34]4 years ago
6 0
The diameter is always half of the entire circumference so that means the diameter of 78.5 is 39.25.i hope i was able to help you
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This is the question can someone help
agasfer [191]

Answer:

The coordinates of the vertices of triangle Q'R'S' will be:

  • Q'(-6, 9)
  • R'(-9, 3)
  • S'(-2, 2)

Step-by-step explanation:

Given the coordinates of the vertices QRS

The coordinates of the vertex Q is (-2, 3)

The coordinates of the vertex R is (-5, -3)

The coordinates of the vertex Q is (2, -4)

As we know the rules of translation that:

If you move horizontally 'c' units to the left, then 'c' units are subtracted to the x-coordinate of each of the vertices.

if you move 'c' units up, then 'c' units are added to the y-coordinate of each of the vertices.

Translation 6 units up and 4 units to the left.

(x, y) → (x - 4, y + 6)

As the triangle Q'R'S' is the image of the triangle QRS translated 6 units up and 4 units to the left.

So,

the coordinates of Q' will be:

(x, y) → (x - 4, y + 6) = (x, y) → (-2 - 4, 3 + 6) = (-6, 9)

the coordinates of R' will be:

(x, y) → (x - 4, y + 6) = (x, y) → (-5 - 4, -3 + 6) = (-9, 3)

the coordinates of S' will be:

(x, y) → (x - 4, y + 6) = (x, y) → (2 - 4, -4 + 6) = (-2, 2)

Therefore, the coordinates of the vertices of triangle Q'R'S' will be:

  • Q'(-6, 9)
  • R'(-9, 3)
  • S'(-2, 2)
6 0
3 years ago
I do not get this i'm so dumb​
lina2011 [118]

Answer:

The answer is B. 6 and 8.

5 0
3 years ago
Read 2 more answers
Prove that (n+5)^2-(n+3)^2 is a multiple of 4 for all positive integer values of n
hodyreva [135]

Answer:

Proved

Step-by-step explanation:

Given

(n+5)^2-(n+3)^2

Required

Show that (n+5)^2-(n+3)^2 is a multiple of 4

Expand each bracket

(n+5)(n+5)-(n+3)(n+3)

Open brackets

n^2 + 5x + 5x + 25 - (n^2 + 3x + 3x + 9)

n^2 + 10x + 25 - (n^2 + 6x + 9)

Open bracket

n^2 + 10x + 25 - n^2 - 6x - 9

Collect Like Terms

- n^2 + n^2 - 6n + 10n + 25  - 9

- 6n + 10n + 25  - 9

4n + 25  - 9

4n + 16

Factorize

4(n + 4)

Hence, the multiples of (n+5)^2-(n+3)^2 are 4 and (n + 4)

8 0
4 years ago
Seg-bkxb-gmr<br>ladies want to learn maths fast​
IrinaK [193]

Answer:

Yoooo

Step-by-step explanation:

Aye this is going to be reported. Good luck tho!!

Also, cool song I have here..

Mr. Beast 6000, oh

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He changed it once or twice, but I think it's here to stay

His thumbnails were made in Paint

But if you ask me, I think they're kind of quaint

Mr. Beast 6000, oh

Mr. Beast 6000, oh

His random videos are the name of the game

Some might say they're his ticket to fame

The occasional intro may not make sense

We all get a laugh at their expense

Mr. Beast 6000, oh

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Mr. Beast, oh

Mr. Beast, oh

Mr. Beast, oh, 6000

Mr. Beast 6000

7 0
3 years ago
According to a zoologist's study, the equation yˆ=0.1651x+149.5738 models the weight of a baby giraffe, in pounds, during the gi
viktelen [127]

Answer:

220

Step-by-step explanation:

3 0
3 years ago
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