Answer:
I believe the answer would be '1/2 a mile long'.
Step-by-step explanation:
Apologies if it's wrong that's just the answer i got when i did it in my head.
Answer:
No Solution
Step-by-step explanation:
Answer:
The percent error in his measurement was 1.41%
Step-by-step explanation:
In order to compute the percentage error we first need to know the absolute error of his measurement. This error is given by what Christopher measured sutracted by the actual length, wich is:
absolute error = 7.2 - 7.1 = 0.1 inches
To know this value in percentage we need to know how many percentage 0.1 inches is from 7.1 inches. So we can use a rule of three such as 7.1 inches relates to 100% as 0.1 inches relates to x%. We have:
7.1 inches -> 100%
0.1 inches -> x
x = (100*0.1)/7.1 = 1.41 %
The percent error in his measurement was 1.41%
Answer:
y=-2x-3
Step-by-step explanation:
Since our equation is in standard form Ax+By=C we must first manipulate the equation so that we have it in the slope-intercept form such that y=mx+b. Therefore:
Therefore, our slope is 1/2 and our y-intercept is 2. Now in order to determine a perpendicular line to the one stated above we must then get the negative inverse of our slope meaning 
(negative reciprocal). Now we must use the point slope formula:
Where m is the slope, x1 is -2 and y1 is 1 (because of the ordered pair given). And so:
Therefore, the line that is perpendicular to -x+2y=4 is y=-2x-3.
