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3.3t^2 + 8.7t - 9.4t^2 + 5t

Can someone simplify this for me. For example, 3t^2 + 5t^2 = 8t^2

2006-09-18 09:35:46 · 11 answers · asked by DiMooch 3 in Science & Mathematics Mathematics

no I don't want you to do my homework I just started distributive property in algebra 1 and I am having trouble with some of them.

2006-09-18 09:41:01 · update #1

No - is a subtraction symbol.

2006-09-18 09:45:41 · update #2

11 answers

well hi Mike

Part One;
3.3t^2 + 8.7t - 9.4 t^2 + 5t
( 3.3t^2 - 9.4t^2)+( 8.7t + 5t)=
-6.1t^2 + 13.7t
Factor 't'
t ( -6.1 t + 13.7 )= 0
t = 0
Or
-6.1 t + 13.7 = 0 ; -6.1 t = - 13.7 ; t = (-6.1)/(-13.7) ;
t ~ + 0.445

Part Two;
3t^2 + 5t^2 = 8t^2
3t^2 + 5t^2 - 8 t^2 = 0
( 3 + 5 - 8 )t^2 = 0
0 t^2 = 0
0 =0
Result ; Always True;

Good Luck

2006-09-18 09:49:01 · answer #1 · answered by sweetie 5 · 0 2

t= 1

2006-09-18 09:45:08 · answer #2 · answered by Root Of All Evil 1 · 0 1

3.3t^2 + 8.7t - 9.4t^2 + 5t
Can be done like:
3.3t^2 + 8.7t
- (+9.4t^2 + 5t)
Since you're subtracting, you have to switch the signs of the bottom one and add:
3.3t^2 + 8.7t
+ (- 9.4t^2 - 5t)
Combine like terms:
-6.14t^2+3.7t


That isn't the distributive property...
This is: a(c+b)=ac+ab

2006-09-18 09:39:26 · answer #3 · answered by Anonymous · 2 0

eh!
3.3t^2 + 8.7t - 9.4t^2 + 5t (!!!)

i presume the '-' is '=' (?)

since it has a single number after decimal, multiply by 10 to get

33t^2 + 87t = 94t^2 + 5t

rewrite now as

94t^2-33t^2 = 87t - 5t

or, 61t^2 = 82 t

or, t ( 61t - 82) = 0 or t=0 or t=82/61 !

2006-09-18 09:43:21 · answer #4 · answered by m s 3 · 0 0

subject fixing is two words, not a hyphenated be conscious. Too many human beings attempt to hyphenate $#it that would not prefer hyphens. confident, that is human kinfolk. in spite of this, it is likewise English communications and pc operations.

2016-12-18 12:35:48 · answer #5 · answered by shorb 4 · 0 0

There is no solution to be made, you would need the equation to equal something in order to be "solved", but it can be simplified to 13.7t - 6.1t^2

2006-09-18 09:46:33 · answer #6 · answered by D. Nelson Altamirano 2 · 1 0

3t^2-9.41t^2+8.7t+5t
=-6.41t^2+13.7t

2006-09-18 09:39:10 · answer #7 · answered by raj 7 · 2 0

The replies that are two and three before mine are correct.

2006-09-18 09:43:42 · answer #8 · answered by Anonymous · 0 0

Der, not sure, got an abacus?

2006-09-18 09:37:47 · answer #9 · answered by forrestgumpjnr 2 · 0 0

ask your teacher, a friend or parent.

2006-09-18 09:38:00 · answer #10 · answered by soccerbrikel 2 · 0 0

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