Make w the subject of
a +3w^2=s

a=−3w2+s

Step-by-step explanation:

Let's solve for a.

a+3w2=s

Step 1: Add -3w^2 to both sides.

3w2+a+−3w2=s+−3w2

a=−3w2+s

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!