1. Express each of the following in scientific notation. ( 1 mark each for a - e, two marks for f) a) 635000 b) 110 c) 43.75 d) 0.009 e) 0.402 f) 0.0034 x 10 2 2. Express in standard form. ( 1 mark each) a) 2.4 x 10 5 b) 1.69 x 10 -3 c) -2.4 x 10 7 3. Find the result: ( Use fraction rules here not decimals) ( 2 marks each) a) 2/3 + (-1/6) b) 2 2/3 ÷ (-2) c) 3/4 x 5/9 ÷ 5/6 d) 3 3/4 ÷ 3/8 x 2/ -3 e) 4/9 ÷ 2/-3 ÷ -2/5 f) -7 2 *(-3/5) 4. Evaluate when m=3 and n=4 ( 2 marks each) a) m 3 + n 2 b) ( n 2 + n ) 3 c) (m 2) n 5. Simplify and express with positive exponents only. ( 2 marks each) a) b) c) d) e) f) 6. Evaluate - use the exponent rules. ( 2 marks each) a) b) c) 7. Which are written in scientific notation? Correct those that aren’t. ( 2 marks for a and c, 1 mark for b) a) 23.1 x 103 b) 1.5 x 103 c) 0.56 x 106 8. Danielle budgeted her babysitting money as follows: 1/3 of it she spent on new clothes, 1/ 5 she spent on entertainment and 2/7 on her friends. What fraction is left to put into her savings account? ( 3 marks) 9. Replace each O with an integer to make each statement true. SHOW YOUR WORK!! ( a worth 2 marks, b worth 4 marks) a) b) Ignore wherever its blank. Credits in it for ya, w/e I have. Please try.
1. a) 6.35 x 10^5 B) 1.1 x 10^2 c) 4.375 x 10^1 d) 9 x 10^-3 e) 4.02 x10^-1 f) Sorry, this one bothers me... 2. a) 240000 B) .00169 c)-24000000 3. a) 1/2 B) 2/3 c) Yeah, I suck at multiplying and dividing these... 4. a) 17 B) 36 c) 24 I did what I felt like doing, #7 is confusing because they are full numbers, you need to put a ^ before the exponent on them please At least you didn't have to do them all yourself...lazy. EDIT: If anything up there is wrong, please correct me, maybe I'll take the time to do them all in a few minutes, but I need to go do my own homework. EDIT 2: Are you in 6th grade? I did this stuff 4 years ago... PM me if you have questions, I'm usually sitting right here doing nothing. EDIT 3: @lllAE86lll - You know how you try to stop spam all the time? That was spam, not helping is spamming Let him do what he needs to do to get help, I know I had to have my sister actually do some of my problems when I first started, after I saw how it was done I was able to do it...
whjy not try to figure out urself ? u will learn by figuring it out not just asking the answer or ask people to solve it for u .....
wow i wish i was doing that still. im learning cubed radicals and dividin by them also with negative fraction roots
1. Express each of the following in scientific notation. ( 1 mark each for a - e, two marks for f) a) 635000 6.35 x10^5 B) 110 1.1 x 10^2 c) 43.75 4.375 x 10^1 d) 0.009 9.0 x 10^-3 e) 0.402 4.02 x 10^-1 f) 0.0034 x 10 2 3.4x10^-1 2. Express in standard form. ( 1 mark each) a) 2.4 x 10 5 240000 B) 1.69 x 10 -3 0.00196 c) -2.4 x 10 7 -24000000 3. Find the result: ( Use fraction rules here not decimals) ( 2 marks each) a) 2/3 + (-1/6) 1/2 B) 2 2/3 ÷ (-2) -2/3 c) 3/4 x 5/9 ÷ 5/6 1/2 d) 3 3/4 ÷ 3/8 x 2/ -3 -4 e) 4/9 ÷ 2/-3 ÷ -2/5 5/3 f) -7 2 *(-3/5) 42/5 NOTE: On this one and the ones above it, I'm assuming that the space between numbers is a multiplication symbol. If they're not that, specify what the hell those spaces are supposed to be. 4. Evaluate when m=3 and n=4 ( 2 marks each) a) m 3 + n 2 17 B) ( n 2 + n ) 3 36 c) (m 2) n 24 5. Simplify and express with positive exponents only. ( 2 marks each) a) B) c) d) e) f) 6. Evaluate - use the exponent rules. ( 2 marks each) a) B) c) 7. Which are written in scientific notation? Correct those that aren’t. ( 2 marks for a and c, 1 mark for B) a) 23.1 x 103 2.3 x 10^4 B) 1.5 x 103 Is correct c) 0.56 x 106 5.6 x 10^5 8. Danielle budgeted her babysitting money as follows: 1/3 of it she spent on new clothes, 1/ 5 she spent on entertainment and 2/7 on her friends. What fraction is left to put into her savings account? ( 3 marks) 19/105
Once again, specify what those spaces are supposed to be. I assumed all the spaces to be multiplication, but if they're exponents, for example, the answers will be different.
