Can someone turn 2,724.7 into a scientific notation?

Mathematics

1 answer:

Svetach [21]3 years ago

3 0

Answer:

2.7247 x 10^3

Step-by-step explanation:

Move the decimal as many spaces to the left until it is behind the first number.

Count how many spaces you moved.

Put that number as the power of x 10^?

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What is 0.002 one tenth of.

jeka94

Let's say is "x".

so, "x" is the whole or 10/10 whilst 0.002 is 1/10 then, let's check

$\bf \begin{array}{ccll}
amount&fraction\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
0.002&\frac{1}{10}\\\\
x&\frac{10}{10}
\end{array}\implies \cfrac{0.002}{x}=\cfrac{\frac{1}{10}}{\frac{10}{10}}\implies \cfrac{0.002}{x}=\cfrac{\frac{1}{10}}{1}
\\\\\\
\cfrac{0.002}{x}=\cfrac{1}{10}\implies \cfrac{0.002\cdot 10}{1}=x$

7 0

3 years ago

Find the sum of this arithmetic series.<br> | 26 + 24.5 + 23 + 21.5 + ... - 17.5

emmainna [20.7K]

Answer:

127.5

Step-by-step explanation:

The given series is 26 + 24.5 + 23 + 21.5 + ... - 17.5

The first term of this series is a=26

The common difference is d=24.5-26=-1.5

The last term of the series is -17.5

The nth term is given by: