The answer is cos70
the angles add up to 180, so 180 - 90 - 20 = 70 degrees.
Subtract 2 from both sides
simplify 38 - 2 to 36
divide both sides by 3
simplify 36/3 to 12
Answer: x = 12.
Answer:
slope= 1/2
c
Step-by-step explanation:
part a)
m= 4 - 0 / 8 - 0
= 1/2
Answer: 270 minutes or 4 hours and 30 minutes
Step-by-step explanation: 3x6 =18 and 45 x 6= 270
Answer:
We are 95% confident that the average weight of the heaviest egg that is still medium size is 3.52 oz
Step-by-step explanation:
Mean = 3.2 oz, sd = 0.13 oz
Assuming there are 3 heavy eggs, n= 3, degree of freedom = n-1 = 3-1 = 2, t-value corresponding to 2 degrees of freedom and 95% confidence level is 4.303
Error margin = t×sd/√n = 4.303×0.13/√3 = 0.32 oz
Upper limit (heaviest egg that is still medium size) = mean + error margin = 3.2 + 0.32 = 3.52 oz
