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Studentka2010 [4]
3 years ago
9

Perform the operation. Enter your answer in scientific notation.   9 × 102 − 5.6 × 102 =

Mathematics
2 answers:
OlgaM077 [116]3 years ago
7 0

Answer:

9\times 10^2-5.6\times 10^2=3.4\times 10^2

Step-by-step explanation:

Given : Operation 9\times 10^2-5.6\times 10^2

To find : Perform the operation ?

Solution :

Operation 9\times 10^2-5.6\times 10^2

Taking 10^2 common,

=9\times 10^2-5.6\times 10^2

=10^2\times (9-5.6)

=10^2\times (3.4)

=3.4\times 10^2

Therefore, 9\times 10^2-5.6\times 10^2=3.4\times 10^2

Arada [10]3 years ago
3 0

Answer:

1489.2

Step-by-step explanation:

9*102-5.6*102=

102(9+5.6) =

102(9.0+5.6) =

102(14.6) =

102*14.6=

14.6*(100+2) =

(14.6*100+14.6*2) =

(1460+(14+.6) *2) =

1460+(28+1.2) =

1460+(28.0+1.2) =

1460+29.2=

1460.0+

29.2

=1489.2

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Answer:

x = -5/21

Step-by-step explanation:

Step 1: Write equation

2(12x - 1) = (21x - 49)/7

Step 2: Solve for <em>x</em>

  1. Multiply both sides by 7: 14(12x - 1) = 21x - 49
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