From the set {5, 7, 40}, use substitution to determine which value of x makes the equation true.

Mathematics

2 answers:

faust18 [17]3 years ago

6 0

Answer:

I am in middle school

Step-by-step explanation:

Bingel [31]3 years ago

5 0

Answer:

D. 5

Step-by-step explanation:

7 (x + 35) = 280

x + 35 = 280/7

= 40

x = 40 - 35

= 5

So it the correct option is D. Sorry I am late!!

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Answer:

1. A. You allow the passenger to board his flight when the passenger has a weapon.

2. B. You select the passenger for further inspection when the passenger has no weapon.

Explanation:

1. Remember, a Type I error in simple words means that the assumption "the passenger has a weapon" (null hypothesis) is actually true, but the airport security screener incorrectly concluded it is false. In other words, he assumed the passenger had no weapon and allowed the passenger to board his flight when he actually did have one.

2. While, a Type II error means that the assumption "the passenger has a weapon" (null hypothesis) is actually false, but the airport security screener incorrectly concluded it is true. In other words, he assumed the passenger had a weapon and selected the passenger for further inspection when he actually didn't have one.