3 years ago

Simply as much as you can.

Mathematics

1 answer:

kenny6666 [7]3 years ago

3 0

Answer:

The answer to your question is: 6/5

Step-by-step explanation:

$\frac{8(-4) - 16}{5(-8)}$

$\frac{-32 -16}{-40}$

$\frac{-48}{-40}$

$\frac{24}{20}$

$\frac{12}{10}$ $\frac{6}{5}$

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D=9.6mm<br>calculate the circumference

Nonamiya [84]

Answer:

30.14

Step-by-step explanation:

The formula for cirumference is 2(pi)r
If the diameter equals 9.6 then the radius is 4.8
4.8 times 2 equals 9.6
9.6 times 3.14(pi) equals 30.144 which could be rounded to 30.14

6 0

3 years ago

The equation for the pH of a substance is pH = –log[H+], where H+ is the concentration of hydrogen ions. Which equation models t

Elden [556K]

$\bf \textit{Logarithm Cancellation Rules}
\\\\
log_a a^x = x\qquad \qquad \boxed{a^{log_a x}=x}\\\\
-------------------------------\\\\
pH=-log(H+)\qquad \stackrel{pH}{7.2}=-log(H+)\implies -7.2=log_{10}(H+)
\\\\\\
10^{-7.2}=10^{log_{10}(H+)}\implies 10^{-7.2}=H+\implies \cfrac{1}{10^{7.2}}=H+$