standard form problem
when squaring a number in standard form, do you square the whole thing or just the number at the beginning
for example:
R = X^2 / Y
X = 3.8 X 10^5
Y = 5.9 X 10^4
would I square just the 3.8 or te 10^5 as well?
for example:
R = X^2 / Y
X = 3.8 X 10^5
Y = 5.9 X 10^4
would I square just the 3.8 or te 10^5 as well?
Square the whole thing - Hint: A power multiplied by 2 (Squared) is multiplying the power by two. Eg. (9^2)^2 = 9^4
Original post by jsk800
Square the whole thing - Hint: A power multiplied by 2 (Squared) is multiplying the power by two. Eg. (9^2)^2 = 9^4
okay so something to the power of 5 squared would be to the power of 10 because you almost just adding because you are timesing by another 5?
Erm for example 2^5 sqaured ( (2^5)^2) = 2^10.
If it were 5 x 2^5 sqaured, it would be 25 x 2^10
If it were 5 x 2^5 sqaured, it would be 25 x 2^10
Original post by Ellis North-Fox
okay so something to the power of 5 squared would be to the power of 10 because you almost just adding because you are timesing by another 5?
Original post by jsk800
Erm for example 2^5 sqaured ( (2^5)^2) = 2^10.
If it were 5 x 2^5 sqaured, it would be 25 x 2^10
If it were 5 x 2^5 sqaured, it would be 25 x 2^10
okay thanks
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