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steposvetlana [31]
2 years ago
14

The first 5 figures in a pattern are shown. If the patterncontinues, which expression can be used to find the number of circles

to make up Figure n?
f.n^2+ 2n
h. 2n^2+ 1
g. n^2+ 2
j. 2n^2+n

Mathematics
2 answers:
garri49 [273]2 years ago
6 0

Answer:

f

Step-by-step explanation:

Novosadov [1.4K]2 years ago
4 0

Answer:

F.

the corect answer for this question

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Karen claps her hand and hears the echo from a distant wall 0.113 s later. How far away is the wall? The speed of sound in air i
insens350 [35]

Answer:

19.3795 m

Step-by-step explanation:

If sound travels at 343 m/s and it took Karen 0.113 s to hear the echo from the wall, the distance travelled by the sound is:

D=343\frac{m}{s} *0.113\ s\\D= 38.759\ m

Note that the distance calculated above is the distance travelled from Karen to the wall and then back from the wall to Karen. Therefore, the distance between Karen and the wall is:

d=\frac{38.759}{2}\\d=19.3795\ m

The wall is 19.3795 m away from Karen.

3 0
3 years ago
Fill in the blanks to complete the sentence
user100 [1]

Answer:

You would use the cos function because you are given the adjacent side and you are finding the opposite side.

Step-by-step explanation:

SOH CAH TOA

Sin = O/H

Cos = A/H

Tan = O/A

O is the Opposite side

H is the Hypotenuse

A is the adjacent side

4 0
2 years ago
I don't understand how to do it can someone help me please!!!​
goblinko [34]

Answer:

813

Step-by-step explanation:

7 0
3 years ago
Find the product -7/5(4/5)
katen-ka-za [31]

Answer:

-28/25 or -1 3/25

Step-by-step explanation:

Hope this helps

4 0
2 years ago
Mr. Burns has 500 pieces of candy and he wanted
Genrish500 [490]

Answer:

3

Step-by-step explanation:

500 - 10 = 490

long way:

490 -135= 355

355 -135=220

220 -135=85

85 candy left

6 0
3 years ago
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