X is less than or equal -55. You have to multiply both sides by 5 to get X by itself.
Answer:
0.071 to 0.129
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence interval
, we have the following confidence interval of proportions.

In which
z is the zscore that has a pvalue of
.
For this problem, we have that:
In a sample of 400 voters, 360 indicated they favor the incumbent governor. This means that 400-360 = 40 do not favor the incumbent governor. So 
95% confidence interval
So
, z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:

The upper limit of this interval is:

The correct answer is:
0.071 to 0.129
You can break this down pretty easily (though I know it sounds confusing). First, you seperate all of the digits:
7,725 -> 5, 20, 700, and 7,000
Now, which ones have a difference of a factor of 10? Well, 700 * 10 = 7,000, so the answer would be: The hundredths place. Hope I helped!
Then, the total weight would be: 3 * 14 = 42 Ounces
No. heat can change a rock's form without melting. If there was a hot substance near the rock like lava, the rock will start to bake.