Finding higher-order derivatives in exercise, find the second derivative of the function.
f(x) = log10 x

Step-by-step explanation:

Given is a function in f as

We can change base to e for our convenience for finding derivatives

The second term is a constant with value = 0.434294

So f(x) = 0.434294 ln x

Now differentiate with respect to x two times

I derivative =

Note: We can leave as log e to base 10 also without converting into actual values.

3; 9 is 8 to -4

step-by-step explanation:

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.