a)True or b)false
2006-10-14 03:20:34 · 4 answers · asked by cave_21man 1 in Science & Mathematics ➔ Mathematics
False, since 4 = 2^2. So it should be 2*2*5.
2006-10-14 04:05:27 · answer #1 · answered by steiner1745 7 · 0⤊ 0⤋
The answer is B)False. first we must change radical 400 into a rational number, since it is a perfect square, radical 400 is equal to 20. next you must break down 20 into it's prime factors which is 4*5, 4=2*2, 20= 2*2*5 which are the prime factors and the product of the prime factors is 20. i hope i was able to help. good luck.
2006-10-14 10:31:14 · answer #2 · answered by Carpe Diem (Seize The Day) 6 · 0⤊ 1⤋
This is false.
Even though sqrt of 400 is 20, a product of primes is not 4 x 5 since 4 is not a prime number.
2 x 2 x 5 is a product of primes.
Regards,
Mysstere
2006-10-14 10:23:35 · answer #3 · answered by mysstere 5 · 0⤊ 0⤋
The number four is not a prime. So False.
The correct answer will be SQRT(400) = 2^2 * 5
2006-10-14 11:34:03 · answer #4 · answered by Dr. J. 6 · 0⤊ 0⤋