Multiply (2.0 ⋅ 10−4) ⋅ (3.1 ⋅ 10−20). Express the answer in scientific notation. 6.2 ⋅ 10−80 6.2 ⋅ 10−24 6.2 ⋅ 1024 6.2 ⋅ 1080

Answers

Answer 1

Answer: scientifice notation is
(number less than 10 but greater than or equal to 1) times (10^x)

remember
(ab)(cd)=abcd=(ac)(bd)

and
(x^m)(x^n)=x^(m+n)

so
(2*10^4)(3.1*10^20)=
(2)(10^4)(3.1)(10^20)=
(2*3.1)(10^4*10^20)

(10^4)(10^20)=10^(4+20)=10^(24)

(6.2)(10^24)

scientifie notiaotn is
6.2*10^24

2d option

Answer 2

Answer: (2,0 * 10⁻⁴) * (3,1 *10⁻²⁰) =

the order of multiplication factors not relevant

2,0 * 3,1 * 10⁻⁴ * 10 ⁻²⁰ =

6,2 *10 ⁻⁴ ⁺⁽⁻²⁰⁾ = 6,2⁻²⁴

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Solve for b
-3=4/3+b

Answers

Answer:

B= -4.3 or -13/3

You’re going to want to subtract -3 by 4/3. Which makes b= -4.3333 or -13/3

Product of a whole number and unit fraction for 3x3/4

Answers

Because all real numbers can be expressed as fractions, whole numbers can be too, with the denominator as 1.

e.g. 3 = 3/1

And then it works like normal multiplication

3/1 x 3/4 = (3 x 3) / (1 x 4)
= 9/4
= 2 and 1/4

Also for future reference, normally * (the asterix, shift + 8) is used to show multiplication on a computer, because "x" is normally used in algebra to mean something else.

I believe its 2 and 1/4

What is 3 1/3 × (- 1/5)

Answers

that is the answer to your question

The answer is -2/3 because you turn 3 1/3 into a improper fraction, 10/3, and then multiply that by -1/5 giving you the answer of -2/3.

How would u solve -2/3x+7=3?

Answers

Well first you would have to full get rid of that 7.

So, -2/3x+7-7=3-7 Which then equals -2/3x= -4

Then you would want to get x by it's self.

So, -2/3x x (-3/2)= -4 x (-3/2) Which then equals x= 6

So your answer is, x= 6

two cars travel in opposite directions, starting from the same place at the same time. One travels at an average rate of 48 miles per hour and the other averaged at 55 miles per hour. in how many hours will the be 618 miles apart?

Answers

so in 1 hour they will be 48+55=103 miles apart
how many hours will it be in 618
103 times x hours=618
divide both sides by 103
x=618/103
x=6

the answer is 6 hours

What is the formulae of a closed cylinder

Answers

Answer:

Step-by-step explanation:

Surface area is 2(πr²) + 2πrh. The first includes the top and bottom; the second is the area of lateral sides of the cylinder (radius r and height h).

The volume of this cylinder is V = πr²h.

Answer:

2 pi r square + pi dh

Step-by-step explanation:

2 pi r square + pi dh

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