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3 years ago

What what are the rules for addition and subtraction with numbers in scientific notation?

1 answer:

5 0

Addition and Subtraction in Scientific Notation. A number written in scientific notation is written as the product of a number between 1 and 10 and a number that is a power of 10. That is, it is written as a quantity whose coefficient is between 1 and 10 and whose base is 10.

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Rationalise the denominator.

grin007 [14]

Let's see what to do buddy...

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To do this, we have to multiply the face and denominator of the fraction by the denominator conjunction, which is :

$(5 -\sqrt{2})$

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Reminder :

$(a + b)(a - b) = {a}^{2} - {b}^{2} \\$

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So we have :

$\frac{1}{ 5-\sqrt{2} } \times \frac{ 5+\sqrt{2} }{ 5 +\sqrt{2} } = \frac{1 \times ( 5 +\sqrt{2}) }{(5- \sqrt{2} )( 5 +\sqrt{2}) } = \\$

The other is in the photo.

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And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

7 0

3 years ago

Solve for j.<br> J + 22/8 =8

Monica [59]

Answer:

j=5.25

Step-by-step explanation:

j+22/8=8

j=8/1-22/8

j=64-22/8

j=5.25

Proof:

5.25+22/8=8

525/100+22/8=8

4200+2200/800=8

6400/800=8

8=8

7 0

3 years ago

What is the slope of (2,5) and (5,8)

murzikaleks [220]

Answer:

Slope = 1

Step-by-step explanation:

Slope = change in y/change in x

= (8-5)/(5-2)

=3/3

6 0

4 years ago

How many days are in a month

ser-zykov [4K]

It could be 30 to 31 but February has 28 expected from a leap year with 29 days

7 0

3 years ago

Read 2 more answers

PLZ HELP ME

iVinArrow [24]

Answer:

y=-1x+8

Step-by-step explanation:

y=mx+b

m=slope

b=y-intercept

7 0

3 years ago