3.99 x10^-7 standard notation?

Answers

Answer 1

Answer:

Since the exponent of the scientific notation is negative, move the decimal point 7 places to the left.

0.000000399

Hope this helps!

Answer 2

Answer:

0.000000399

Since 10 is to the power of -7 you count 7 spaces behind the decimal and then you get 0.000000399.


Related Questions

PLS HELP
Frank received a $4.00 tip from a customer who had a $25.00 bill. Which decimal represents the fraction of the bill Frank received as a tip? 0.04 0.16 0.25 0.625

Answers

Answer:

0.16

Step-by-step explanation:

{(5²)} ³×5⁴}÷5⁷ simplify and express the following as exponent​

Answers

Answer:

The answer is 5³.

Step-by-step explanation:

You have to apply Indices Law :

[tex] {a}^{m} \times {a}^{n} ⇒ {a}^{m + n} [/tex]

[tex] {a}^{m} \div {a}^{n}⇒ {a}^{m - n} [/tex]

[tex] { ({a}^{m} )}^{n} = {a}^{mn} [/tex]

So for this question :

[tex]( {( {5}^{2}) }^{3} \times {5}^{4} ) \div {5}^{7} [/tex]

[tex] = ( {5}^{6} \times {5}^{4} ) \div {5}^{7} [/tex]

[tex] = {5}^{10} \div {5}^{7} [/tex]

[tex] = {5}^{3} [/tex]

VUNESP –ADAPTADA) A sombra de um prédio, num terreno plano, numa determinada hora do dia, mede 15 metros. Nesse mesmo instante, próximo ao prédio, a sombra de um poste de altura 5 m mede 3 m. A alternativa que contém a altura do prédio, em metros e a razão de semelhança entre a altura do poste e do prédio
(respectivamente) é: *

Answers

Answer:

hola

Step-by-step explanation:

3(3x - 1) + 2(3 - x) = 0

Answers

Answer:

-3/7

Step-by-step explanation:

1guys please help I gut an exam soon how to solve this?!

Answers

Answer:

477.525cm^2

Step-by-step explanation:

A = pi X 4^2 = 50.265cm^2

Totals to 100.53cm^2

C = pi X 8 = 25.133

Area = 25.133 X 15 = 376.995cm^2

100.53+376.995= 477.525cm^2.

The equation 2x - 4y - 8 models the relationship between x and y. What is the rate of change of y with respect tox?

Answers

Answer:

1/2

Step-by-step explanation:

Given the equation 2x-4y = 8 models the relationship between x and y

The rate of change of y with respect to x is known as the slope of the line.

The standard form of equation of a line is y = mx+c where;

m is the slope

c is the intercept

Rewrite the equation in its standard form as shown:

2x-4y = 8

-4y = -2x+8

-4y/-4 = -2x/-4 + 8/-4

y = 1/2 x -2

On comparison, the slope m is 1/2

Hence the rate of change of y with respect to x is 1/2

Large reusable bottles cost $4 more than small ones. Eight large bottles cost $24 less than

Answers

A small bottle costs $14.

To solve the problem, the equation would be this:

Let s represent a small bottle. Since one large bottle is $4 more than a small one, you would write out (4+s). Then, multiply it by 8 to find one side of the equation, and get 8(4+s). To write out the right side of the equation, you would write out 12s to represent 12 small bottles, and subtract 24 from that to represent that 8 large bottles is $24 less than 12 small ones.

Then, proceed to solve the equation to get the answer of s=14. Because a small bottle is $14, you can check your work by substituting the 14 in replace of s. :

How much money is shown? i know the $25 i just dk the change

Answers

20 , cause pennies are worth 10c cents each

Answer:

$25.20

Step-by-step explanation:

This is the answer because:

1) 10 + 10 + 5 = 25

2) Next, dimes are equal to 0.10

25 + 0.10 + 0.10 = 25.20

Hope this helps! :D

Randy is thinking of a number. When he adds 7 to the number, multiplies the sum by 3, then subtracts 2, the result is 13. What is the original number?
A. 6
B. -2
C. 2
D. -6

Answers

Answer:

B. -2

Step-by-step explanation:

let the number be x

=7+x

=3(7+x)

=3(7+x)-2

13=3(7+x)-2

solving for  x we have

13=21+3x-2

21+3x-2-13=0

collect like terms we have

21-2-13+3x=0

6+3x=0

6=-3x

x=6/-3

x=-2

The answer is B

B. -2

If I was rotating (-5, -1) 90 degrees clockwise, what are the new coordinate points?

Answers

Answer:ok

Step-by-step explanation:

Estimate 4.8 x 4.15.

Answers

Answer:

19.92

Step-by-step explanation:

4.8 x 4.15

Answer:

20 is the correct answer.

Step-by-step explanation:

if (a+1/2)=4find the value of a^3+1/a^3​

Answers

Answer:

Step-by-step explanation:

[tex]a + \frac{1}{2}=4\\\\[/tex]

     [tex]a = 4 -\frac{1}{2}\\\\a =\frac{4*2}{1*2}-\frac{1}{2}\\\\a =\frac{8}{2}-\frac{1}{2}\\\\a=\frac{7}{2}[/tex]

[tex]\frac{1}{a}=\frac{1}{\frac{7}{2}}\\\\ = 1*\frac{2}{7}\\\\ = \frac{2}{7}[/tex]

[tex]a^{3}+\frac{1}{a^{3}}=(\frac{7}{2})^{3}+(\frac{2}{7})^{3}[/tex]

           [tex]= \frac{343}{8}+\frac{8}{343}\\\\=\frac{343*343}{8*343}+\frac{8*8}{343*8}\\\\=\frac{117649}{2744}+\frac{64}{2744}\\\\=\frac{117649+64}{2744}\\\\=\frac{117713}{2744}\\\\= 42\frac{2465}{2744}[/tex]

Examine the supply and demand schedules for laptops. How much would a
seller charge if he or she wanted to sell laptops for their equilibrium price?

Answers

Answer:

$400

Step-by-step explanation:

the seller would charge $400 if he or she wanted to sell laptops for their equilibrium price.

What is the equilibrium price?

Demand and supply forces are balanced at an equilibrium price. Prices have the propensity to revert to this equilibrium unless certain demand or supply characteristics alter. When demand, supply, or both move or change, the equilibrium price will change.

neither a deficit nor a surplus exists unless a demand or supply determinant changes. When the price of a good or service changes and there is a shortage, this indicates that buyers want to purchase more than what producers are willing to sell.

Demand exceeds the supply in this situation, leaving customers unsatisfied. The opposite is true if a price shift results in a surplus, which indicates that customers wish to purchase fewer units than are being provided by producers.

In the given dataset, we can see that Demand and supply are equal at the price of laptops 400$.

Therefore, the seller would charge $400 if he or she wanted to sell laptops for their equilibrium price.

Learn more about equilibrium prices here:

https://brainly.com/question/28527601

#SPJ2

write the ratio 3 differnt ways AND give 3 equivalent ratios. five horses to seven dogs​

Answers

Answer:

5:7

5/7

5 to 7

10:14 --> 10x2=20 14x2=28

20:28 --> 20x2=40 28x2=56

40:56

The Chambers family has a net monthly income of $6,500.

A circle graph titled Chambers Family Budget. Housing is 25 percent, Food is 20 percent, Savings is 7 percent, Transportation is 12 percent, medical is 10 percent, clothing is 18 percent, emergency fund is 8 percent.

If the family decides to reduce its clothing budget by $200 a month, how much will the new clothing budget be? Round to the nearest dollar.
$161
$853
$970
$1,170.

Answers

It’s going to be 970 because 6,500*.18 is 1,170 and then you subtract 200 and it equals 970.

Answer:

B.) $970

Step-by-step explanation:

The person above me is correct and I did the quiz.

PLEASE HELP!! 30 POINTS!!

Answers

that is a linear line

Answer:

the slope is 1

Step-by-step explanation:

the line is going up so the slope is definitely positive

and if you use the rise over run method then you should get 1 over 1 which means the slope is one

The ratio of berries to oranges is 10:1. If there are 25 oranges, how many berries are there?

Answers

Answer:

250 berries

Step-by-step explanation:

Berries : Oranges = 10 : 1

Let the number of berries = x

10 : 1 = x : 25

Product of means = 1*x = x

Product of extremes = 10 * 25 = 250

Product of means =  product of extremes

          x = 250

250 berries

Rewrite the expression by factoring out (w+3).
7w2(w+3)-3(w+3)

Answers

Answer:

(w + 3) [7w²  - 3]

Step-by-step explanation:

Given expression:

    7w²(w + 3) - 3(w + 3);

 Now rewriting the equation by factoring out (w+ 3);

 Solution:

   7w²(w + 3) - 3(w + 3);

   = (w + 3) [7w²  - 3]

 

The solution is (w + 3) [7w²  - 3]

How to factor y^3 +2y^2 + 2y + 1

Answers

Answer:

Step-by-step explanation:

P(y) = y³ + 2y² + 2y + 1  

P(-1) = (-1)³ + 2*(-1)² + 2*(-1) + 1

      = -1 + 2 - 2 + 1

      = 0

As, P(-1) = 0, (y + 1) is a factor.

  Use synthetic division or remainder theorem.

-1        1          2           2           1

           0        -1            -1         -1        

           1          1            1            0

quotient = y² + y + 1

y³ + 2y² + 2y + 1  = ( y + 1) (y² + y + 1)

 

i need the standard form of seventy billion nine hundred milion sixty Thousand seven thousebth eight hundred ninty nine and one three ​

Answers

Answer:

The wording in the question is off I sorry I can't help unless I have exact numbers.

Answer:

70000001088

Step-by-step explanation:

PLEASE PLEASE HELP, I'll give brainliest
easy

Answers

C, this class is really hard, if u need tutoring contact me

what is 13 × 2/3 ???

Answers

Answer:

Im pretty sure its 8 2/3

Answer: 26/3

Step-by-step explanation: 13/1 times 2/3

The Product Of Two Consecutive Negative Even Integers Is 24. Which Can Be One Of The Integers?

O -2
O -6
O 10
O -8​

Answers

It can be -2,-6,-8 but not 10

What is the slope of this line?
Enter your answer as a fraction, formatted like this: 42/53

Or, if the slope is undefined, enter a lowercase letter "u," like this: u

Please help me and I will give you brianlyeist

Answers

Answer:

2, 4

Step-by-step explanation:

-1 1/4 a = 1 3/4 (in fraction)

Answers

Answer:

Decimal Form:

-1.4

Mixed Number Form:

-1 2/5

Extract Form:

-7/5

Step-by-step explanation:

You work at an appliance store that offers an extended warmanty on each product sold. The store sold 12,930 appliances and two-fifths of the customers purchased the extended warranty. How many extended warrantles were purchased?​

Answers

Answer:

5,172

Step-by-step explanation:

When figuring out a fraction of a number (especially of total things sold to find out the number of a certain thing purchased), remember that you are multiplying. So when finding 2/5 of 12,930, just multiply 12,930 by 2/5 (or, in decimal form, .4) and that will give you 5,172. Hope this helps!

helpp ill mark u as brainlist​

Answers

Answer:

Assuming you want slope formula for this, it's y= (5/9)x -1

7. During the Middle Ages, people often used grains, scruples, and drahms to measure the weights of different medicines. If 120 grains are equivalent to 6 scruples and 6 scruples are equivalent to 2 drahms,

how many drahms are equivalent to 300 grains? Explain your reasoning. If you get stuck, try creating a table.


Answers

Answer:

5 drahms.

Step-by-step explanation:

From the question given above, the following data were obtained:

120 grains = 6 scruples

6 scruples = 2 drahms

300 grains (in drahms) =..?

From the above data,

120 grains = 6 scruples

6 scruples = 2 drahms

Therefore,

120 grains = 2 drahms

Thus, we can obtain 300 grains in drahms as follow:

120 grains = 2 drahms

Therefore,

300 grains = 300 grains × 2 drahms /120 grains

300 grains = (300 × 2)/120 drahms

300 grains = 5 drahms

Therefore, 300 grains is equivalent to 5 drahms.

A.(-1,6)
B.(-6,5)
C.(-8,1)
D.(-10,1)

HELP ASAP‼️‼️

Answers

Answer:

the answer is b

Step-by-step explanation:

I did this last year and got them right

73 in. is how many ft. ???

Answers

the answer is 6 feet and 1 inch long
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