Answer: 554
Step-by-step explanation:
Formula we use to find the sample size :

Given : Standard deviation : 
Margin of error : E=one quarter hour = 0.25 hour
Two-tailed , Critical value use for 0.95 degree of confidence:
i.e. 
Hence, the required sample size = 554
i.e. 554 executives should be surveyed.
3-|4-n|>1
3-3 -|4-n| > 1-3
-|4-n| > -2
-|4-n|/-1 > -2/-1
|4-n| < 2
**inequality flips when dividing by a negative, absolute values give 2 answers
4-n <2
or
4-n >-2
n > 2. or. n < 6
2 < n < 6
15. true 16. false in my coculations.
Answer:
65°
Step-by-step explanation:
2x= 130° (vertically opposite angles)
x= 130/2
x= 65°
D.
That is what i do 12 x 2 will equal 24 since the are 2 parallel sides like in a rectangle. and it will be the same concept on the other side 7 x 2 = 14 and 24 + 14 will equal 38
hope this helped and is how you are supposed to work it