Answer:
180 degrees
Step-by-step explanation:
the sum of angles in a triangle is 180degrees
Answer:
115
Step-by-step explanation:
Consider the sequence of triangles
3, 5, 7
There is a common difference between consecutive terms, that is
d = 7 - 5 = 5 - 3 = 2
This indicates the sequence is arithmetic with n th term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 3 and d = 2, thus
= 3 + (56 × 2) = 3 + 112 = 115
Answer: There is sufficient evidence to support the claim that the bags are under-filled.
Step-by-step explanation:
Since we have given that
Sample mean = 411
Standard deviation = 20
n = 9
So, the test statistic value is given by
At 0.025 level of significance,
critical value z = -2.306
since -2.306<-1.05
so, we will reject the null hypothesis.
Yes, there is sufficient evidence to support the claim that the bags are underfilled.
Answer:
117
Step-by-step explanation:
3*3*3*3=81
81+36=117