How can i make this exercise? ?

x = 3 or x = 1

note that log 5 is usually taken to mean 5

using the law of logarithms

logx - logy = log ()

the right hand side can be expressed as

log 10000 - log 16 = log () = log 625

divide both sides by log 5

x² - 4x + 7 = = 4

subtract 4 from both sides

x² - 4x + 3 = 0 ← in standard form

(x - 3 )(x - 1) = 0

equate each factor to zero and solve for x

x - 3 = 0 ⇒ x = 3

x - 1 = 0 ⇒ x = 1

6.9

step-by-step explanation:

simple math really

6 1/2 times 0.6 = 3.9

but if you are just doing 6 and not 6 1/2 then the answer is 3.6

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.