now, as far as the second case....well, sine of anything is within the range of -1 or 1, so -1 < sin(A) < 1
now, we have -2 = sin(A), which simply is out of range for a valid sine, so there's no angle with such sine
so, only the first case are the valid angles for A
Answer:
NoRedInk sucks.. But I'm on that question too...
Explanation
The model has the form
Where a=initial amount
y= final amount
K= growth rate constant
t= time
When 140 kg of substance is left after 7 hours, the formula can be remodeled to be.
Therefore, the first solution is
For part b we have 16 hours.
Thus, the answer is 36kg
Answer:
The secret ingredient has 5/6 cups
Step-by-step explanation:
we know that
The secret ingredient consists of 2/3 cup mayo and 1/6 cup honey mustard
To find out how many cups is the secret ingredient, sum the cups of mayo and the cups of honey mustard
Let
x ----> the cups of mayo
y ---> the cups of honey mustard
Multiply by 2 both numerator and denominator of 2/3
substitute
Remember that when add fractions with the same denominator, add the numerators and write the sum over the common denominator
I believe that the answer is C.