3 years ago

1.What is value of x?

1 answer:

5 0

For the first picture..........

|AB| |BD|
-----=-----
|AC| |DC|

x+8 10
-----=----
2x-5 14

10(2x-5)=14(x+8)

20x-50 = 14x+112

20x-14x = 112+50

6x = 162

x= 162/6

x=27.....

For the second picture.......

AD| |AC|
-----=-----
|DB| |CB|

3 4
--=---
x 7.5

4×X = 3×7.5

x = 22.5/4

x = 5.625....

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Write 0.0003532 in scientific notation.

tatyana61 [14]

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What is this number in standard form?<br><br> (3×100)+(1×110)+(4×11,000)

zimovet [89]

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Step-by-step explanation:

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2 years ago

a molecule is measured and the width is 3x10-6 cm. how long will a string of 225 similar molecule be? give your answer in scient

mixer [17]

The length of the molecule is $6.75*10^-^4cm$ in scientific notation.

Data;

Width of molecule = 3*10^-6 cm
Number of molecules = 225

<h3>Length of the molecule</h3>

This can be calculated as the total length of the 225 molecules added together. To do this, we simply multiply both the numbers of the molecules by the width of the molecule.

This becomes;

$3*10^-^6*225 = 0.000675cm = 6.75*10^-^4cm$