Q1) Estimate 1.321 x √3.4 correct to one significant figure.
Q2) Hence estimate 1.321 x 10^5 x √3.4 x 10^6 correct to one significant figure in standard form.
2007-08-04 23:12:18 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Use scientific calculator and calculate this easiest question and see what the answer is it. Let me calculate.....
Q1)-0.5
Q2)1.2 x 10
2007-08-04 23:22:40 · answer #1 · answered by Desert ant 1 · 1⤊ 2⤋
1] 1.321 x rt3.4, now, rt3.4 approximates to 1.8, {since 18^2 is
324, and 19^2 is 381}, so we`ll take rt 3.4 to be 1.8, so we get
1.321 x 1.8, {1.321 x 2 = 2.642}, so an approximation is
1.321 x rt3.4
= 2.5, and to one significant figure is 3.
2] This becomes, 3 x 10^5 x 10^6
= 3 x 10^11, in standard form.
2007-08-04 23:34:15 · answer #2 · answered by Twiggy 7 · 0⤊ 1⤋
Q1) 2.435 = 2
Q2) 2.43580364531 x 10^11 = 2 x 10^11
2007-08-05 04:03:48 · answer #3 · answered by Anonymous · 0⤊ 0⤋
cant be bothered, ask something harder plz
2007-08-04 23:16:10 · answer #4 · answered by Anonymous · 1⤊ 2⤋
OK
2007-08-04 23:16:25 · answer #5 · answered by Boomer 5 · 1⤊ 2⤋