Answer:

Step-by-step explanation:
Given
-- degree of freedom

Required
Determine the t-value
The given parameters can be illustrated as follows:

Where

So, we have:

To solve further, we make use of the attached the student's t distribution table.
From the attached table,
The t-value is given at the row with df = 28 and
is 3.673900
Hence, 
Its 40% because its just the fact ratio you know
Answer:
x = 1/4
Step-by-step explanation:
16 = 2 can be written as
= 2
(
)^x = 2^1
if bases are the same we can create this equation: 4x = 1
x = 1/4
Answer: 
Step-by-step explanation:
Given
The temperature on the ground is 
temperature drop observed is 
The height of the plane is 
The total increase in height per
is
units
Temperature drop is

The temperature at that altitude is

Answer: 140%
Step-by-step explanation: