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2 years ago

Express 194720 in standard form correct to 3 significant figures

Mathematics

1 answer:

ELEN [110]2 years ago

3 0

Answer:

1.95 x 10^5

Step-by-step explanation:

First look at the 4th digit in the number 194720 as the the question said to round to 3 significant figures. If the 4th digit is more than 5, then add 1 to the third digit which results in 195000. Now the question also said to express in standard form. Look for the first non-digit number in 195000. After 1 put a decimal point and remove all the zeros after the point which results in 1.95. Now count how many digits you moved to the left which comes as 5. Write the answer as 1.95 x 10^5.

Hope you can understand this!!

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I don't get this can u please show me step by step

Murljashka [212]

$\bf \begin{array}{llllll}
\textit{something}&&\textit{varies inversely to}&\textit{something else}\\ \quad \\
\textit{something}&=&\cfrac{{{\textit{some value}}}}{}&\cfrac{}{\textit{something else}}\\ \quad \\
y&=&\cfrac{{{\textit{k}}}}{}&\cfrac{}{x}
\\\\
&&y=\cfrac{{{ k}}}{x}&\impliedby 
\begin{array}{llll}
k=\textit{constant}\\
\qquad \textit{of variation}
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$

$\bf y=\cfrac{k}{x}\qquad 
\begin{cases}
y=0.2\\
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3 years ago

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blagie [28]

Answer:

down below.

Step-by-step explanation:

straight lines are always 180.

$x+34+2x+2=180\\3x+36=180\\3x+36-36=180-36\\3x=144\\3x/3=144/3\\x=48$

5 0

3 years ago

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Len [333]

Answer:

$30

Step-by-step explanation:

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Add the mark up to original price

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3 0

3 years ago

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kirza4 [7]

Answer:

a) x=7

b) x=4

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I hope this helps! Do you need more help?

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3 years ago

Read 2 more answers

X+78=3x-2 <br> ..................

photoshop1234 [79]

Answer:

$x=40$

Step-by-step explanation:

$x+78=3x-2\\\mathrm{Subtract\:}78\mathrm{\:from\:both\:sides}\\x+78-78=3x-2-78\\x=3x-80\\\mathrm{Subtract\:}3x\mathrm{\:from\:both\:sides}\\x-3x=3x-80-3x\\\\$

$-2x=-80\\\frac{-2x}{-2}=\frac{-80}{-2}\\x=40$

6 0

3 years ago

Express 194720 in standard form correct to 3 significant figures​

Express 194720 in standard form correct to 3 significant figures