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algol [13]
3 years ago
9

calculate 4.5 times 10^negative 2 divided by 8.3 times 10^negative 4 by using scientific notation and the product rule. round an

swer to three decimal places so the answer in scientific notation has three decimal places​
Mathematics
1 answer:
Degger [83]3 years ago
6 0

Answer:

5.4217 • 10¹

Step-by-step explanation:

4.5 • 10⁻² ÷ 8.3 • 10⁻⁴

450 ÷ 8.3

54.21686...

54.217

5.4217 • 10¹

I hope this helps

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Answer:

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Step-by-step explanation:

  • Diagonals of a rhombus are perpendicular.
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<u>Use Pythagorean to work out the side length.</u>

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Isabella is making waffles. It takes 2/5 of a pound of flour to make 2 waffles. She uses 3 1/5 pounds of flour for every 8 eggs
Naddik [55]

Answer:

\large \boxed{16\frac{1}{2}}

Step-by-step explanation:

1. Calculate the pounds of flour

\begin{array}{rcl}\text{Pounds of flour} & = & \text{12 eggs} \times \dfrac{2\frac{1}{5}\text{ lb flour}}{\text{8 eggs}}\\\\ & = & 12 \times \dfrac{\frac{11}{5}\text{ lb flour}}{8}\\\\ & = & 12 \times \dfrac{\text{11 lb flour}}{40}\\\\ & = &\dfrac{3}{10} \times \text{11 lb flour}\\\\ & = & \dfrac{33}{10} \text{ lb flour}\\\\\end{array}

2. Calculate the number of waffles

\begin{array}{rcl}\text{No. of waffles} & = & \dfrac{33}{10}\text{ lb flour} \times \dfrac{\text{2 waffles}}{\frac{2}{5}\text{ lb flour}}\\\\& = & \dfrac{33}{10} \times \dfrac{\text{1 waffle}}{\frac{1}{5}}\\\\& = & \dfrac{33}{10} \times \text{1 waffle} \times {\dfrac{5}{1}}\\\\& = & \dfrac{33}{2} \times \text{1 waffle}\\\\& = & \mathbf{16\frac{1}{2}} \textbf{ waffles}\\\\\end{array}\\\text{Isabella makes $\large \boxed{16\frac{1}{2}\textbf{ waffles}}$}

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A file that is 226 megabytes is being downloaded if the download is 12.&amp;% complete, how many megabytes have been downloaded?
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Answer:

28.7

Step-by-step explanation:

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