Answer:
<u>x = -14</u>
Step-by-step explanation:
<u />
<u>Divide each side by -3.</u>
- -3(x + 9)/-3 = 15/-3
- x + 9 = -5
<u>Subtract 9 from each side.</u>
- x + 9 - 9 = -5 - 9
- <u>x = -14</u>
Convert 50 m to cm.
50m=5000 cm
Therefore it would take them 5000 seconds
Using the z-distribution, it is found that a sample size of 1066 is required.
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which z is the z-score that has a p-value of .
The margin of error is:
From the previous study, the estimate is of 0.23, hence .
98% confidence level, hence, z is the value of Z that has a p-value of , so .
The sample size is <u>n for which M = 0.03</u>, hence:
Rounding up, a sample size of 1066 is required.
A similar problem is given at brainly.com/question/12517818
Answer:
see below
Step-by-step explanation:
10^33/2
Rewriting the numerator as 10 * 10 ^ 32
10 * 10 ^32
--------------------
2
10/2 = 5
5 * 10 ^32
Therefore
10^33/2=5*10^32
1. 3x + 5x + 14x = 22x
2. 4x + 7 + 11x = 15x+7
3. 10x + 8 - 3x= 7x+8
4. 6x - 5 + X - 11 = 7x-16
5. -8x + 19 + 2 - 2x = -10x+21
6. X + 23 + 4x - 34 - X = 4x-11
7. 105 + 27x - 68 - 19x - 27 + x = 9x +10
8. 7x + 16 - 3x + 3 - 2x - 2x = 19
9. -18 + 6 - 4x + 10 - 11x + 2 = -15x
10. 16 + 4x - 12x - 28 - 6x + 17 + x - 1 = -13x+4