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2 years ago

What is the area of the regular octagon shown below?

Mathematics

2 answers:

Greeley [361]2 years ago

8 0

Answer:

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Alexus [3.1K]2 years ago

3 0

Answer:

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Show step by step In a day there are 86,400 seconds. Write this number in scientific notation.

Nesterboy [21]

Answer:

8.64 × 104

Step-by-step explanation:

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3 years ago

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What's the word phrase for 2(5-n)

solmaris [256]

I would say: 2 times 5 less a number.

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3 years ago

(Middle school math) please help, thank you!

valentina_108 [34]

Answer:

i dont know

Step-by-step explanation:

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3 years ago

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Choose the option with the proper number of sig figs

marishachu [46]

$\text{ 2 }\times10^8$

Explanation: $\begin{gathered} \text{Given:} \\ \frac{9\text{ }\times10^9}{4.5\text{ }\times10^1} \end{gathered}$

let's break down the expression to get the final result:

$\begin{gathered} \frac{9\text{ }\times10^9}{4.5\text{ }\times10^1}\text{ = }\frac{9}{4.5}\times\text{ }\frac{10^9}{10^1} \\ \frac{9}{4.5}\text{ = }\frac{9\text{ }\times\text{ 10}}{4.5\text{ }\times\text{ 10}}\text{ = }\frac{90}{45} \\ \frac{9}{4.5}\text{ = }2 \\ \\ \frac{10^9}{10^1}\colon\text{ when we divide exponents with same base, } \\ we\text{ take one of the base and combine the exponents by subtracting them:} \\ \frac{10^9}{10^1}=10^{9-1} \\ \frac{10^9}{10^1}=10^8 \end{gathered}$ $\begin{gathered} \frac{9}{4.5}\times\text{ }\frac{10^9}{10^1}\text{ = 2 }\times10^8 \\ \\ \text{when dividing decimals, }the\text{ least number of }significant\text{ }figures\text{ in the problem}, \\ \text{ }\det ermines\text{ the significant figures in the answer} \\ 9\text{ = 1 significant, 4.5 = 2 significant} \\ \text{The least significant is 1} \\ \\ \frac{9\text{ }\times10^9}{4.5\text{ }\times10^1}\text{ = 2 }\times10^8 \end{gathered}$

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1 year ago

Ravi is driving 440 miles to visit his grandma. He drives at a rate of 55 miles per hour. How many hours will it take him to get

Gennadij [26K]

You answer is about one hour i guess

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3 years ago

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