Answer:
Step-by-step explanation:
2 = 4/2 . 4/5 can not be a improper fraction
Answer:
and the question is? I'm confused
Answer:
x=45
Step-by-step explanation:
Since 105 degrees equal to the angle right above it:
180=105+30+x
180=135+x
180-135=45
45=x
Check:
105+30+45=180
Percent errors are calculated by dividing the absolute value of the errors by the exact length. What the student did wrong here is that he or she divided the given measurements by the exact lengths, which should not be the case.
Correct percent errors:
19 cm
percent error = (I19 - 20I / 20) x (100%) = 5%
21 cm
percent error = (I21 - 20I / 20) x (100%) = 5%
Answer:
((2a+b)/2 , a/2)
Step-by-step explanation:
The midpoint is the mean/average of both the x and y values.
Our x values are a+b and a
Our y values are a-b and b
The midpoint x value is (a+b + a ) /2 = (2a + b)/2
The midpoint y value is (a-b + b) /2 = (a)/2
The midpoint combines these two values to get ((2a+b)/2 , a/2) as our midpoint