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prohojiy [21]
3 years ago
14

Why did the Bulletin Board notice feel nervous

Mathematics
2 answers:
jekas [21]3 years ago
5 0
Because it was under a tack. Do u get it? ( attack )
Anarel [89]3 years ago
4 0
It was under a tack.
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-5n-20=-20-10(n-2) (please help)
k0ka [10]

Answer:

n=4

Step-by-step explanation:

First use distributive property to expand -10(n-2)

-5n-20=-20-10n+20

Simplify

-5n-20=-10n

Combine Like Terms

-20=-5n

Divide both sides by -5 to isolate "n"

n=4

5 0
3 years ago
A revenue department is under orders to reduce the time small business owners spend filling out pension form ABC-5500. Previousl
Goshia [24]

Considering the situation described, we have that:

  • The appropriate null hypotheses is H_0: \mu = 5.2.
  • The appropriate alternative hypotheses is H_1: \mu < 5.2.

<h3>What are the hypotheses tested?</h3>

At the null hypotheses, it is tested if the mean has not been reduced, that is, it still is of 5.2 hours, hence:

H_0: \mu = 5.2.

At the alternative hypothesis, it is tested if the mean has been reduced, that is, it is now of less than 5.2 hours, hence:

H_1: \mu < 5.2

More can be learned about hypotheses tests at brainly.com/question/26454209

4 0
2 years ago
On a test of 80 problems, Bill got 75% of the problems correct. How many question did he get correct?​
Pavel [41]

Answer: 60

Step-by-step explanation:

75% of 80 is 60.

Multiply 80 by .75 to get the answer.

6 0
3 years ago
Only using 1 2 3 4, find a solution that equals 18, 19, 20, and 21
adoni [48]

Answer:

See below, there may be more than one answer

Step-by-step explanation:

4(3+1)+2 = 18

(4+2)(3)+1 = 19

(1)(2+3)(4) = 20

(1+2)(3+4) = 21

6 0
3 years ago
What is the greatest common factor and least common multiple of 45 75 and 90?
Ghella [55]
15 and 450 because you divide and multiply until you get the same number
6 0
3 years ago
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