Answer:
x = 9
Step-by-step explanation:
Well, let's solve it!
x - 9 = 0
Let's add 9 to both sides to isolate the variable and maintain equality.
We end up with :
x = 9 since -9 and 9 cancel out and 0 + 9 = 9.
Answer:
The answer to your question is the letter A.
Step-by-step explanation:
a) - c < 0 This option is correct c > 0 but -c < 0 or 7 > 0 and -7 < 0
b) c < -a This option is incorrect. 7 > - (-4) or 7 > 4
c) c < - b This option is incorrect. 7 > - 1
Conclusion
The right answer is the first choice because is the only that satisfies the inequality.
Answer: 278.4
Step-by-step explanation: What I did was I divided 1392 by 5. Now the reason I used "1392" rather than "1395" is because it asked for the amount of adult tickets, so I subtracted children ticket from total amount and got 1392 then divided it by 5 and ended up with 2
Answer:
0.142
Step-by-step explanation:
From the question, we identify the following parameters;
n = 49
p = 82% = 82/100 = 0.82
alpha, α = 1-0.99 = 0.01
Zα/2 = Z_0.005 = 2.575
margin of error = Zα/2 * √( p(1-p)/n)
Margin of error = 2.575 * √(0.82)(1-0.82)/49
Margin of error =0.1416005 which is approximately 0.142
