I will come back to this when I am older
Answer:
40.5g of salt is left after evaporating all the water.
Step-by-step explanation:
Here, 9% of 450g means that out of 450 gram of solution, 9% is the salt.
So, we need to calculate 9% of 450
i.e. 9% * 450 = 0.09 * 450 = 40.5g
Hence, 40.5 grams of salt is in 450 grams of solution.
i.e. 40.5g of salt is obtained after evaporating all the water from the solution.
Consider the given equation to be f(x) whose first derivative is positive for all real x. This implies f(x) is a strictly increasing function. Thus it has only 1 root.
Answer:
c
Step-by-step explanation:
