Answer:
Step-by-step explanation:
Given that Student scores on exams given by a certain instruc-tor have mean 74 and standard deviation 14.
Group I X Group II Y
Sample mean 74 74
n 25 64
Std error (14/sqrtn) 2.8 1.75
a) P(X>80) =
b) P(Y>80) =
c) X-Y is Normal with mean = 0 and std deviation =
P(X-Y>2.2) =
d)
Answer: 2,940
Step-by-step explanation: 245 x 12= 2,940
If ur question is to find the missing side length, it would be 7cm because the 8.2cm are right across from each other and are the same value. so the missing side across from 7cm would be 7cm too
Answer:
(-1,8)
Step-by-step explanation:
The vertex is the point of the parabola and the point is (-1,8) in the graph.
Hope this helps
Since we see u² as the first term, we know that the factored form will be something like: (u ± something)(u ± something)
We also know that the sum of these 'somethings' is 1, and he product is negative 30 (because that's 1 u, and -30). The two numbers that have a sum of 1 and a product of -30 are 6 and -5, so the factored form of this trinomial is (u + 6)(u - 5)