Express 12345678 in standard form

• 1.234578 X 10⁷

• 1234.5678 X 10⁴

• 1.2345678 X 10⁷

• *Brainfort

A school consist of 700 students.30% are chinese,20% are indians and the rest are malay.Express the percentage of malay students in standard form.

• 3.5 X 10²

• Not enough time

• 5 X 10

• 350

A video has a duration of 7 minutes and 3 seconds.Express the duration of the video,in seconds,in standard form.

• 7.3 x 10

• 4.23 x 10²

• *Loading

• 10 seconds

Express μ(pi) in 3 significant figures.

• 2.27

• 3.142 X 10²

• 3.14

• Too bad I don't remember value of pi

The speed of light is 2.99792458 X 10⁸ ms^-1.

Express speed of light in 3 significant figures.

• 299792458

• 2998

• 299000000

• 300000000

To get the value of a,you must divide an unknown by itself.

How much significant figures are there for the value of a.

• 2

• 1

• 3

• 0

The radius of earth is 6371 km.Imagine if an apocalypse happen where earth is cut half,find the area of the flat surfaces of both parts of the earth.Find the answer correct to 3 significant figures,then express it in standard form.

(μ=22/7)

• 3.39 X 10²

• 8 X 10²

• 2.55 X 10²

• ARGHHH!!!

Given E=mc²,where c=4.

Express the value of Em^-1 in standard form.

• Emmmm......????

• 4.4 X 10

• 1.6 X 10

• 1

How many terms are there for EVERY standard form?

• 2

• 3

• 1

• 9

How many digits are there in x after x is rounded off correct to 3 significant figures?

(Assuming that 0<x<1,x has 4 significant digits initially and the last digit is less than 5)

• 4

• 3

• 1

• 5