9.66
^ This is the tenths place.
Look at the number after it, if it's 5 or more we round up, if it's 4 or less we round down.
The number is 6, so we round up to 9.7.
In order to factor a polynomial, you have to find its roots

So that you can factor it as

So, in this case, we're looking for the solutions of

So, the polynomial can be written as

Answer:
Distance of object = 0.0144 meter
Step-by-step explanation:
Given:
Angular diameter = 30 arcseconds = 30[100 / 3600]
Length of diameter = 10 cm
Find:
Distance of object
Computation:
Distance of object = [(2)(a)][TanФ / 2]
Distance of object = [(2)(10)][Tan(300 / 7200]
Distance of object = [20][Tan 0.04167]
Distance of object = [20][0.00072]]
Distance of object = 0.0144 meter
He used 74.4 lbs of type A coffee.
If he is using a mixture of two divide the total of cost by 2 to get the amount of what one of the coffee costed, then divide that by 5.55 and you get the answer.