Determine which one of the following is the correct application of the change of base formula?

a)log3 14= log10 14/3
b)lo4 17= log10 4/ log10 17
c)log8 3= log10 3/log10 8
d)log9 32 = log10 32-log10 9

The change of base formula is as follows:
log to the base 10 of x
log to the base b of x = ----------------------------------
log to the base 10 of b

Compare this to answer choice C:

c)log8 3= log10 3/log10 8 Here x = 3 and b = 8. This is the only correct choice.

6 0

3 years ago

Lindsey plans on visiting her friend two states over. The distance to her friend is 1188 miles. If she leaves on Friday and driv

podryga [215]

Answer:

Do you mean 7 hours a day? If so:

7*60=420

1188/420=2.82ish which rounds to 3 days.

Step-by-step explanation:

4 0

3 years ago

In the name carbon dioxide, the prefix of the second word indicates that a molecule of carbon dioxide contains

kherson [118]

Answer:

The correct option is B. two oxygen atoms

Step-by-step explanation:

The molecular formula for carbon dioxide is given by :

$CO_2$

Here, the alphabet C stands for Carbon and the alphabet O stands for Oxygen.

And the prefixes of each of these words represents the number of atoms present of the corresponding element in one molecule of carbon dioxide.

So, The prefix of the first word that is C is 1

⇒ One molecule of carbon dioxide contains one atom of Carbon.

The prefix of the second word that is O is 2

⇒ One molecule of carbon dioxide contains 2 atoms of Oxygen.

Therefore, The correct option is B. two oxygen atoms

7 0

3 years ago

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