There could be an infinite number of solutions, one solution, or no solution at all.
The answer would be: 67.89 x 10^6
The rules of significant numbers used:
- any non-zero digit is significant
- zeroes that are in the right side of the non-zero whole number would not be significant
Thus, only the significant numbers left in the equation:
67.89 x 10^6
Answer:
and 
Step-by-step explanation:
(a)
A = 
× 4
× 
= 2 ×
= 
× 
← rationalise the denominator
= units²
(b)
Using Pythagoras' identity in the right triangle
let hypotenuse be h , then
h² = (4 )² + ( )²
= 32 + 
= 
+
= 
( take the square root of both sides )
h = 
= 
× ← rationalise the denominator
h =
The Power of a Power Rule. In this case, you basically multiply the two exponents together, and simplify (x^4)^9 to equal x^36
