Which one is ‘T’ for each of the followi...

Which one is ‘T’ for each of the following:
( i ) 645 in standard form is `6.45 xx 10^(2).`
( ii ) 27000 in standard form is `27 xx 10^(3).`
( iii ) `(3^(0)+4^(0)+5^(0))=12.`
( iv ) Reciprocal of `5^(6)` is `6^(5)`.
( v ) If `5^(-1) xx x =8^(-1),` then `x =frac(8)(5).`

A

2

B

1

C

3

D

4

Verified by Experts

The correct Answer is:

B

Similar Questions

Explore conceptually related problems

( i ) Express 2000000 in standard form. ( ii ) Express 6.4 xx 10^(5) in usual form.

EXAMPLE 24. Write each of the following number in usual form: ( i ) 6.28 xx 10^(6) ( ii ) 8.235 xx 10^(11) ( iii ) 9.2 xx 10^(3)

The standard form for 0.000037 is 3.7xx10^(-5)

Express (1.5xx10^(6))/(2.5xx10^(-4)) in the standard form.

The answer to the following problem in standard exponential form is : (2.0xx10^(13)) + (1.5xx10^(14))

Express the following numbers in usual form: (i) 2 xx 10 ^(-5) (ii) 6.32 xx 10 ^(-4) (iii) 1.596 xx 10 ^(-5)

Find each of the following products: ( i ) 3xx(-8)xx5( ii) 9xx(-3)xx(-6)

Find the value of each of the following: ( i ) 8^(@) ( ii ) (-3)^(@) ( iii ) 4^(@)+5^(@) ( iv ) 6^(@) xx 7^(@)

Find each of the following products: (i) (4a + 5b) xx (5a - 6b) (ii) (6x^(2) - x + 8) xx (x^(2) -3)