Answer:
-5x^4
Step-by-step explanation:
Cube root of -125 is -5
Cube root of n^12 is n^4
Answer:
See explanation
Step-by-step explanation:
Given the inequality ![-7x+3>45](https://tex.z-dn.net/?f=-7x%2B3%3E45)
A) Add -3 to both sides of inequality:
![-7x+3-3>45-3\\ \\-7x>42](https://tex.z-dn.net/?f=-7x%2B3-3%3E45-3%5C%5C%20%5C%5C-7x%3E42)
Divide by -7 (remember, dividing the inequality by negative number changes the sign of inequality):
![x](https://tex.z-dn.net/?f=x%3C-6)
B) Plot open circle at -6 on the number line and shade all values of x which go to the left from -6 (see attached diagram).
Answer:
271 people
Step-by-step explanation:
Margin of error = critical value × standard error
At 90% confidence, the critical value is 1.645.
Standard error for a proportion is s = √(p (1 − p) / n).
0.05 = 1.645 √(0.52 (1 − 0.52) / n)
n = 271
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