$\bf \textit{exponential form of a logarithm}
\\\\
log_a b=y \implies a^y= b\qquad\qquad 
% exponential notation 2nd form
a^y= b\implies log_a b=y \\\\
-------------------------------\\\\
y=10^x\implies log_{10}(y)=x$

5 0

3 years ago

2x(x+1)-2=2(x-3)(x+3)

Ilya [14]

Answer:

x=-8

Step-by-step explanation:

I solved for x and got this :)

Hope this helps :D

5 0

3 years ago

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SOMEONE HELP ME PLEASE

marin [14]

Answer:

Step-by-step explanation:

Direct variation problems can easily be solved with proportions, namely:

$\frac{x}{y} :\frac{2}{5}=\frac{4}{y}$ and cross multiply to get

2y = 20 so

y = 10

5 0

3 years ago

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A runner has run 1.192 kilometers of a 10-kilometer race. How much farther does he need to run to finish the race?

Marianna [84]

Answer is 8.08 kilometers

4 0

2 years ago

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