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.
<span>The answer is 105 because to solve <ABC you add up the 2 angles inside of <ABC and that would be 62+43=105.
-Hope this helps.
</span>
Answer:
50z + 17
Step-by-step explanation:
-5(-10z + -4) +-3
distribute
= 50z +20 -3
=50z + 17
Answer:
i got 7
Step-by-step explanation: