Answer:
The decimal number is 0.964
Step-by-step explanation:
we have

step 1
Multiply each fraction by the whole number

step 2
Convert each fraction in a decimal number
Remember
Move the decimal point to the left as many places as there are zeros in the factor.
Move the decimal point one step to the left (10 has one zero).
Move the decimal point two steps to the left (100 has two zeros)
Move the decimal point three steps to the left (1000 has three zeros)

step 3
Adds the number

Answer:
2
Step-by-step explanation:
We have
n = 4 scores
SS = 48
For this question, we are required to find the estimated standard error
To get this, we first solve for the variance
S² = SS/n-1
= 48/4-1
= 48/3
= 16
Then S² = 16
S = √16
S = 4
Then the estimated standard error is given by:
S/√n
= 4/√4
= 4/2
= 2.
The estimated standard error is 2.
Answer:

Step-by-step explanation:
see the attached figure to better understand the problem
we know that
If AB is tangent to circle O at point A
then
AB is perpendicular to AO (radius) and Triangle ABO is a right triangle
so
----> by complementary angles in a right triangle
substitute the given value

