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oksano4ka [1.4K]
3 years ago
12

Quick! [0, infty) open or closed interval?

Mathematics
1 answer:
Arturiano [62]3 years ago
5 0
Infinite intervals are closed if they contain a finite endpoint, and open otherwise. The entire real line is an infinite interval that is both open and closed
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If the kite is 500 feet of string how high is it above the ground if the horizontal distance between Tyler and the kite is 300 f
laiz [17]

Pythagorean Theorem:  

500^2 = 300^2 + x^2  

250,000 = 90,000 + x^2  

160,000 = x^2  

x = +/- 400 use the positive root  

height is 400ft

6 0
3 years ago
This should be easy but plz explain in the best way thank u
pentagon [3]

Answer:

The answer is 1.

Step-by-step explanation:

9^15 = 205891132094649

205891132094649(1/205891132094649 )

Cancel the common factor of "205891132094649 "

You are left with 1.

3 0
3 years ago
6. Find the sum or difference<br> 1/3(9 - 6m) + 1/4 (12m-8)
romanna [79]

Answer:

m+1

Step-by-step explanation:

1/3(9 - 6m) + 1/4 (12m-8)

Distribute

1/3 *9  - 1/3 *6m  + 1/4 * 12m - 1/4 *8

3 -2m + 3m -2

Combine like terms

-2m+3m +3-2

m+1

6 0
3 years ago
A.2/7<br> B.3/7<br> C.5/7<br> D.4/7
Dafna1 [17]

Answer:

  • The C indicates the opposite of that
  • So it would be 4/7

3 0
3 years ago
Read 2 more answers
after the interview ,Ellen decided to hire two of the applicants and reject the others .Ellen's assistant called back the applic
Elden [556K]

Answer:

40 + 2r

Step-by-step explanation:

Well an hour has 60 minutes.

So 60 x 1/30 = 60/30 = 2 minutes for each person that didn't get into the job

60 x 1/3 = 60/3 = 20 minutes for the people that made it into the job.

20 x 2 = 40 minutes in total for the people that made it into the job.

We don't know how much people got rejected so:

The answer is

40 + 2r

7 0
2 years ago
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