Answer:
0
No other rational number is its own reciprocal. We know that there is no rational number which when multiplied with 0, gives 1. Therefore, rational number 0 has no reciprocal or multiplicative inverse.
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Answer:
The margin of error is of 0.0184 = 1.84%.
Step-by-step explanation:
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 zscore that has a pvalue of 
.
The margin of error is:
95% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
In this question:
The margin of error is of 0.0184 = 1.84%.
Answer:
There is no solution.
Step-by-step explanation:
-4x+y = -6 rearranged to slope intercept form would be y = 4x-6 because slope intercept form is y = mx+b where m is the slope and b is the y-intercept. Also, when the x has to swap to the other side of the equal sign, it will change from negative to positive, or vise versa. Then, 8x-2y = 14 would be y = 4x-7 because if you divide 8x, -2y, and 14 by -2 in order to isolate your y, the equation would turn into -4x+y = -7. Again, rearrange it to slope intercept form. Now that your equations are both in slope intercept form, you rewrite them without the ys. Which means, 4x-6 = 4x-7. However that is not true. To further explain, you can subtract 4x from each side of the equal sign, leving finally -6 = -7. And that is still not true. Therefore, the final answer would be no solution.
Answer:
<
Step-by-step explanation:
2*18-18=18
2*[28-3*(2+4)] = 20
18<20
