Answer:
Percent error is approx. 22%
Step-by-step explanation:
So to do this you need to know the formula for percent error, which is
percent error = l measured - theoretical / theoretical l * 100%
With this just plug in 18 (real) and 14 (measured).
percent error = l 14 - 18 / 18 l * 100%
percent error = l -4 / 18 l *100%
percent error = l -2/9 l *100%
You then do absolute value because the percent error must be positive not negative! So -2/9 becomes 2/9. You then divide 2/9 to get approx. 0.22... and you muliply by 100% to get 22%.
The distance around the crater is the circumference.
The formula for circumference is pi x diameter.
C= pi x d
C= 3.14 x 3000
C= 9420 feet
Answer:
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l \
l \
l \
l______\
Step-by-step explanation:
Answer:
Radius = 2.5 m Length = 7 m Half cylinder formula- ½ (pi r^2) + (2 pi R h) Pi x 2.5^2 + 2 x pi x 2.5 x 7
129.5906969 x .5 = 64.795348 m^2 The surface area of the half pipe is 65 m^2.
Step-by-step explanation:
Q9. 5n + 8 = 43
5n = 43 - 8
5n = 35
n = 35/5
n = 7
Q10. y/6 - 7 = 4
y/6 = 4 + 7
y/6 = 11
y = 11×6
y = 66
Q11. 8w - 15 = 57
8w = 57 + 15
8w = 72
w = 72/8
w = 9
Q12. g/3 + 11 = 25
g/3 = 25 - 11
g/3 = 14
g = 14×3
g = 42
Q13. f/5 - 22 = -25
f/5 = -25 + 22
f/5 = -3
f = -3×5
f = -15
Q14. -4p + 19 = 11
4p = 19 - 11
4p = 8
p = 8/4
p= 2
