Find the circumference of a circle whose radius is 15.4cm

Answers

Answer 1

Answer: $r=15,4\ cm\nC=2\cdot\ \pi\ \cdot\ r\nC=2\cdot\ \pi\ \cdot\ 15,4\ cm\nC=30,8\ \pi\ cm$

$\pi\approx\ 3,14$

$C=30,8\ \cdot\ 3,14\ cm\nC=96,712\ cm$

Answer 2

Answer: π = 3,14

c = 2.π.r
c = 2.3,14.15,4
c ≈ 96,7

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Help me with this question i don’t understand what to do

Answers

Answer:

- 36

Step-by-step explanation:

First evaluate g(18), then substitute the value obtained into h(x), then substitute the value obtained here into f(x).

g(18) = $√(2(18))$ = $√(36)$ = 6, then

h(6) = | 4(6) | - 12 = | 24 | - 12 = 24 - 12 = 12, then

f(12) = - 3(12) = - 36

the ratio of red marbles to green marbles is 3 to 5. which situation follows this ratio? 70 red marbles and 42 green marbles 9 red marbles and 24 green marbles 51 red marbles and 85 green marbles 30 red marbles and 18 green marbles

Answers

3/5 = 51/85

Therefore, 51 red marbles and 85 green marbles follows the required ratio.

Answer with explanation:

Ratio of red marbles to green marbles is equal to $(3)/(5)$

Now starting from Options given

$1.(70)/(42)=(5)/(3)\n\n2.(9)/(24)=(3)/(8)\n\n3.(51)/(85)=(3)/(5)\n\n4.(30)/(18)=(5)/(3)\n\n\text{Option C}\rightarrow (51)/(85)$

with no air resistance, an object would fall 16 feet during the first second, 48 feet during second second 80 feet during the third second, 112 feet during the fourth second, and so on, how many feet will be object fall during the ninth second

Answers

During the ninth second, the object will fall at 272 feet.

Fiona is going to jog once around the block she lives on. The block is rectangular, and it is 180 yards long and 200 feet wide. How far will Fiona jog (in feet)?

Answers

Perimeter is the sum of the length of the sides used to make the given figure. The distance that Fiona will jog is 760 yards.

What is the perimeter?

Perimeter is the sum of the length of the sides used to make the given figure.

Given that the block is rectangular, and it is 180 yards long and 200 feet wide. Now, given that Fiona is going to Jog once around the block, therefore, the distance that Fiona will cover is the perimeter of the block.

Thus, the perimeter of the block is,

The perimeter of the block = 2(Length + Width)

= 2(180 yards + 200 yards)

= 2(380 yards)

= 760 yards

Hence, the distance that Fiona will jog is 760 yards.

Learn more about perimeter here:

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all you have to do for this question is times 180 by two since there is two sides. after you do that you would get 360 yards. next step would be calculate how many feet are in 360 yards. there are 3 feet in one yard, so you would multiply 360 by 3 to get 1,080 feet. now you do the same steps but with the other side which is 200. times by 2 because there is 2 sides to get 400 yards. now calculate the feet 400*3=1,200. finally you would add the two numbers to see how far fiona jogged which would be 1,080 plus 1,200 to get 2,280 feet.

If there are 13 values in a data set in order from smallest to largest, what is the third quartile of the data set?A. The mean of the 10th and 11th values
B. The mean of the 8th and 9th values
C. The mean of the 7th and 8th values
D. The mean of the 9th and 10th values

Answers

Third quatile position is given by: Q3 position = 3/4 (N) where N is the number of data set.
Q3 position = 3/4 ^ 13 = 9.75 (i.e. between the 9th and 10th values)

Answer: D [The mean of the 9th and 10th values]

A line is a(n) _____ for a function if the graph of the function gets closer and closer to touching the line but never reaches it. A. asymptote B. diagonal C. array D. diagram E. estimation

Answers

I think the correct answer from the choices listed above is option A. A line is an asymptote for a function if the graph of the function gets closer and closer to touching the line but never reaches it. Hope this answers the question. Have a nice day.

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