(a) If

is the mass (in mg) remaining after

years, then


(b)

(c)
90° is equal to
or 1.5707 radians.
Step-by-step explanation:
Step 1:
If an angle is represented in degrees, it will be of the form x°.
If an angle is represented in radians, it will be of the form
radians.
To convert degrees to radians, we multiply the degree measure by
.
For the conversion of degrees to radians,
the degrees in radians = (given value in degrees)(
).
Step 2:
To convert
90°,

radians.
So 90° is equal to
or 1.5707 radians.
Answer:
-364 should be subtracted
Step-by-step explanation:
subtract -9876 from -9512 to see what number u will get and them that's the number that will obtain -9512
-9876
-9512
_
_______
-364
-9876
-364
_
_______
-9512