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melisa1 [442]
3 years ago
11

1.4⋅10^9 − 8.6⋅10^8 Express your answer in scientific notation

Mathematics
1 answer:
Vladimir79 [104]3 years ago
3 0

Answer:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the

10

. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

5.4×108

(The 8 (eight) is supposed to be small and goes on the corner of the 10 (ten))

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Answer: 255,000 inches; 4.0256121212 miles

Step-by-step explanation:

8,500*30

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255,000/63,360

= 4.02462121212

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1+1= 5 yet my teacher says it’s 2

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Read 2 more answers
What is the width of the rectangle shown below? <br>4x + 3 <br>A = 8x2 – 10x – 12
ozzi

Answer:

<h2><em>2x-4</em></h2>

Step-by-step explanation:

Area of a rectangle = Length * Width

Given parameters

Area A = 8x2 – 10x – 12

Length of the rectangle = 4x+3

Required

Width of the rectangle.

Substituting the given parameters into the formula

8x2 – 10x – 12  = (4x+3)*width

width = 8x2 – 10x – 12 /4x+3

S

Factorizing the numerator

8x² – 10x – 12

= 2(4x²-5x-6)

= 2(4x²-8x+3x-6)

= 2(4x(x-2)+3(x-2))

= 2(4x+3)(x-2)

Width = 2(4x+3)(x-2)/4x+3

Width = 2(x-2)

Width = 2x-4

<em>Hence the width of the rectangle is 2x-4</em>

8 0
3 years ago
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