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3 years ago

What is the scientific notation of 130400000)

Mathematics

2 answers:

kompoz [17]3 years ago

7 0

That would be 1.304*10 exponent 8 right?!?!

VashaNatasha [74]3 years ago

5 0

Scientific Notation is a number between one and ten times ten to the power of a number. I'll go through the steps below.
1: get a decimal from 130400000 but count the number of times that you move the decimal.
0 - 130400000.
1 - 13040000.0
2 - 1304000.00
3 - 130400.000
4 - 13040.0000
5 - 1304.00000
6 - 130.400000
7 - 13.0400000
8 - 1.30400000
2: So you need to move the decimal 8 times to the left, and you get 1.304! scientific notation is just moving a decimal... sooo...
1.304 X10^8 
That is the answer. X10 is used with every scientific notation problem, and 8 is the number of times you'll have to move the exponent to get 130,400,000

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Answer:

The magnitude of the resultant force is:

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The direction is:

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Step-by-step explanation:

Let's find the components of each vector is x and y-directions first.

Sum of x-component vector forces.

$F_{tot-x}=F_{1}cos(45)+F_{2}cos(30)$

$F_{tot-x}=50cos(45)+75cos(30)$

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Sum of y-component vector forces.

$F_{tot-y}=-F_{1}sin(45)+F_{2}sin(30)$

$F_{tot-y}=-50sin(45)+75sin(30)$

$F_{tot-y}=2.1 \: pound$

The magnitude of the resultant force is:

$R=\sqrt{100.3^{2}+2.1^{2}}$

$R=100.3 \:pound$

The direction is:

$tan(\theta)=\frac{2.1}{100.3}$

$\theta=arctan(\frac{2.1}{100.3})$

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I hope it helps you!

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3 years ago

2. A line has an x-intercept of 2 and a y-intercept of 5. What is the slope of the line?

Blizzard [7]

Answer:

-5/2

Step-by-step explanation:

Use slope formula:

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The y intercept is 5, the point would be (0,5)

So you can do (5-0)/(0-2) which is 5/-2 which then would be -5/2

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3 years ago

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1 year ago

What is the decimal multiplyer to decrece by 72%

pishuonlain [190]

Answer:

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Step-by-step explanation:

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3 years ago

Your time spent playing pool and ice skating must not exceed 20 hours a week. Your weekly allowance is $80. You pay $3 an hour p

Anton [14]

Answer:

The graph in the attached figure

Two possible solutions are the point (10,10) and the point (4,8)

see the explanation

Step-by-step explanation:

Let

x ----> the time in hours spent playing pool in a week

y ----> the time in hours spent for ice skating in a week

we know that

$x+y \leq 20$ ----> inequality A

$3x+5y \leq 80$ -----> inequality B

using a graphing tool

The solution is the shaded area

see the attached figure

Remember that the time can not be a negative number

If a ordered pair is a solution of the system of inequalities, then the ordered par must lie on the shaded area of the solution

Looking at the graph

Two possible solutions are

(10,10) ----> this point lie on the shaded area of solution

That means -----> The time in hours spent playing pool in a week is 10 and the time in hours spent for ice skating in a week is 10

(4,8) ----> this point lie on the shaded area of solution

That means -----> The time in hours spent playing pool in a week is 4 and the time in hours spent for ice skating in a week is 8

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