Lainey read 15,700 words of her book on her family's road trip to the beach. Write the number of words that she read in scientific nototion.

Answers

Answer 1

Answer: 1.57 x 104

Step-by-step explanation: How to Convert a Number to Scientific Notation

The proper format for scientific notation is a x 10^b where a is a number or decimal number such that the absolute value of a is greater than or equal to one and less than ten or, 1 ≤ |a| < 10. b is the power of 10 required so that the scientific notation is mathematically equivalent to the original number.

Move the decimal point in your number until there is only one non-zero digit to the left of the decimal point. The resulting decimal number is a.

Count how many places you moved the decimal point. This number is b.

If you moved the decimal to the left b is positive.

If you moved the decimal to the right b is negative.

If you did not need to move the decimal b = 0.

Write your scientific notation number as a x 10^b and read it as "a times 10 to the power of b."

Remove trailing 0's only if they were originally to the left of the decimal point.


Related Questions

Someone plz answer

the school jimmy goes to is selling tickets to a fall musical. om the first day of ticket sales the school sold 9 adult tickets and 14 child tickets for $101. The school took in $88 on the second day by selling 12 adult tickets and 7 critical tickets. What is the price each of one adult ticket and one child ticket.

Answers

Answer:

if my math is correct it is $4.39

Step-by-step explanation: do not fully trust this

What is 5g When is g Is 3?

Answers

Answer:

15

Step-by-step explanation:

5g

g becomes 3, so 5*3

=15

Answer:

15

Step-by-step explanation:

5g g=3

5(3)

15

Callie reads 5 pages in 20 minutes. She spends the same amount of time per page.
How long will it take Callie to read 11 pages?
A.50 minutes
B.23 minutes
C.44 minutes
D.65 minutes

Answers

Answer:

44

Step-by-step explanation:

You said it

how do you Factor in algebra 2?

for example:
r^2-r-20
and
x^2+8x+12

Answers

(r-5)(r+4)

(x+6)(x+2)

Step-by-step explanation:

1 r^2 - 1 r - 20

multiply the first and third terms

-20 times 1 equals -20. take the -1

*what are two numbers that multiply together that equals -20 but add to equal -1?

-5 times 4 equals -20

-5 plus 4 equals -1

(r-5)(r+4)

1 x^2 + 8 x + 12

multiply the first and third terms

12 times 1 equals 12. take the 8

*what are two numbers that multiply together that equals 12 but add to equal 8?

6 times 2 equals 12

6 plus 2 equals 8

=(x+6)(x+2)

write an expression for each phrase. *will give BRAINLIEST*

5 times the quantity x plus 6

&

32 divided by the quantity y+12

Answers

Answer:

5 times the quantity x plus 6

5x + 6

32 divided by the quantity y + 12

[tex]\frac{32}{y+12}[/tex]

Step-by-step explanation:

Pls do mark me brainliest:)

It can be interpreted in two ways:
32
y
+
12

or

32
y
+
12

Explanation:
The statement does really indicate clearly enough what is meant.
It could be interpreted as:
32
divided by,
y
plus
12

which would mean that
32
is divided by the sum of
y
and
12

32
y
+
12

OR
It could be read as
32
divided by
y
, plus
12

32
y
+

Jill spends $525 for monthly bills. Of this amount she spends 110 on her cell phone bill and 25% on her car payment. The remainder pays her utilities. How much money does she spend on utilities?

Answers

Answer:

283.75

Step-by-step explanation:

  525/4=131.25

131.25+110=241.25

525-241.25=283.75

The value of y varies directly with x. When y=30, x=0.75. What is the value of y when x=5.25?

Answers

Answer:

210

Step-by-step explanation:

According to this question, y varies directly with x. Mathematically, This means that:

y =kx

Where k is the constant variable

If y=30 and x=0.75, then k will be;

k = y/x

k = 30/0.75

k = 40

Since k = 40,

y = 40x

Therefore, when x=5.25, the value of y will be:

y = 40x

y = 40 × 5.25

y = 210.

Allen's miniature train travels at a rate of 20 meters in 2 minutes. At this rate, how far will the train travel in 10 minutes? *
5 points
10 meters
20 meters
100 meters
200 meters
Is the following equation proportional? y = 6x + 2 *
5 points
Yes
No
(sorry its two questions)

Answers

Answer:

100 meters  20/5=100

Not sure about the second one

hope this helps

Step-by-step explanation:

Line a is perpendicular to line b, and neither line is vertical. Which statement(s) below are TRUE? I: The slopes of line a and line b are the same. II: One line has a positive slope, the other line has a negative slope. III: Line a and line b will never intersect. IV: The slope of one of the lines is undefined.

Answers

Answer: One line has a positive slope, and the other has a negative slope.

Step-by-step explanation: When lines are perpendicular, that means their slopes are the exact opposite of each other because they intersect at a right angle.

Budget Rental Car charges an initial fee of $20 plus an additional $30 per day to rent a car. Enterprise Rental Car charges an initial fee of $36 plus $28 per day. For what number of days is the total cost charged by the companies the same?

I need an answer ASAP!! :)

Answers

Answer:

8 days

Step-by-step explanation:

5. What is the slope of the line whose equation is
2y = 3x +4
A. 3
B. 2
C. 3/2
D. 2/3

Answers

the slop of the line is 2/3, you always have to put x on denominator and y is numerator

y^2+3y^2-6y+y^{3-8y}

Answers

Answer:
Wdym? BENCNDNF

What is the slope of the line that passes through the points (-8, -6) and (-18, 6) ? Write your answer in simplest form.

Answers

Answer:

y=12/10-15.6

Step-by-step explanation:

The slope of the line is [tex]-\frac{6}{5}[/tex].

To understand more, check below explanation.

Slope of line:

The slope of line passing through [tex](x_{1}, y_{1})[/tex] and [tex](x_{2}, y_{2})[/tex] is computed as,

                    [tex]m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

Given that , points are (-8, -6) and (-18, 6)

So that,

               [tex]Slope=\frac{6-(-6)}{-18-(-8)}\\ \\Slope=\frac{12}{-10}\\ \\Slope=-\frac{6}{5}[/tex]

Hence, the slope of the line is [tex]-\frac{6}{5}[/tex].

Learn more about the slope of line here:

https://brainly.com/question/3493733

James went to the amusement park. He had $20. He spent $5.50 on a hamburger and
$1.25 on a bottle of apple juice. He spent the rest of the money on rides. Each ride costs
$.75. On how many rides did James go?
Please it’s urgent, write the steps.

Answers

Answer:

17

Step-by-step explanation:

5.50 + 1.25 = 6.75

20 - 6.75 = 13.25

13.25 / .75 = 17

he will have $0.50 left

Answer:

I know about your account Logridio.  I don't know if I should tell Ms. Rragami. ;)

Graph: Y-3 =1/2(x+2)

Answers

Answer:

It will pass in between (-8,0) on the x-axis and (0,4) on the y axis

Step-by-step explanation:

Here is the picture, if you ever need help go to desmos.com.

Slove 4(5x-2)= 2(9x+3)

Answers

Answer:

x=7

Step-by-step explanation:

divide both sides by two. distribute on the left side. minus 9x on both sides. add 4 on both sides, and you get 7.

Answer:

x = 7

Step-by-step explanation:

Firstly, use the distributive property to distribute the 4 and the 2 respectively.

[tex]4(5x-2) = 2(9x+3)[/tex]

[tex]20x-8=18x+6[/tex]

Then, isolate the variable. Start by subtracting 18x from both sides.

[tex]2x - 8 = 6[/tex]

Add 8 to both sides.

[tex]2x = 14[/tex]

Divide both sides by 2.

[tex]x=7[/tex]

What is m<1?
Plzzz I need help

Answers

Answer:

130 bc its the alternate exterior angle of angle D

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

interior angle for triangle is 180 if you want to find it you have to find interior angle for d and then 180-70-the interior angle for d and then you will get answer for b2 and then 180-b2 and you will get 120

help me againn, will give brainliest.

Answers

six students because they have 6 students at the top not in any bubbles

Answer:

6

Step-by-step explanation:

PLEASE HELP ME what are the slope and the y- intercept of the liner function that is represented by the graph.​

Answers

The second one . You go from the x axis which is horizontal then you go to the y axis which is the straight line . And look at the points . 4/3 is the answer .

Please help I’ll
Give you brainiest!❤️

And please solve it too thanks!

Answers

Answer:

y=2x +14

Step-by-step explanation:

y-8 = 2x + 6

y = 2x + 6 + 8

y= 2x + 14

can someone help simplify this 6n+5(10n−7)

Answers

Answer:

21n-35

Step-by-step explanation:

6n+5(10n-7)

distribute 5

6n+15n-35

add 6 and 15

21n-35

you cant subtract 21 and -35 because they arent like terms

(-5)- 2 x (-9) + 6
i need the answer asap

Answers

Add − 9 and 6.

[tex]- 5 - 2x, -3[/tex]

estimate the value of 9.9²x1.79

Answers

Answer: Not necessarily an estimate but your answer should be 175.4379 in decimal form.

A line has a slope of
1/4
and passes through the point (0.2,
4/5


Find the value of b, the y-intercept.


b = ???

Answers

Answer:

b = 3/4

Step-by-step explanation:

Using point slope: y - y1 = m(x - x1).

Substitute your given slope, given point, and subsitute 0 in for x and solve for y since the y intercept is the y value when x = 0.

0.2 = 1/5, so 1/5 * 1/4 = 1/20

Therefore: y - 4/5 = 1/4(0 - 0.2) → y - 4/5 = -1/20 → y = 4/5 - 1/20 → 15/20 → 3/4

b = 3/4

Using point slope: y - y1 = m(x - x1).

Substitute your given slope, given point, and subsitute 0 in for x and solve for y since the y intercept is the y value when x = 0.

0.2 = 1/5, so 1/5 * 1/4 = 1/20

Therefore: y - 4/5 = 1/4(0 - 0.2) → y - 4/5 = -1/20 → y = 4/5 - 1/20 → 15/20 → 3/4

Can anyone tell me what the correct answer for this is? Thank you.

Answers

Answer:

3x^2-5x-2

Step-by-step explanation:

(9x^3-18x^2-x+2)÷(3x-1)

[9x^2(x-2)-(x-2)]÷(3x-1)

[(x-2)×(9x^2-1)]÷(3x-1)

(x-2)×(3x-1)×(3x+1)÷(3x-1)

(x-2)×(3x+1)

3x^2-x-6x-2

3x^2-5x-2

answerrrr plssssssssssssssssssssssssssssssssssss

Answers

Answer:

c

Step-by-step explanation:

because like it would happen in real life yk and the others dong make sense at all

tell me if its right

Answer:

c)scene

according to me

Suppose brine containing 0.2 kg of salt per liter runs into a tank initially filled with 500 L of water containing 5 kg of salt. The brine enters the tank at a rate of 5L/min. The mixture, kept uniform by stirring, is flowing out at the rate of 5 L/min. (The same conditions as in the previous problem). After 10 min, a leak develops in the tank and an additional liter per minute of mixture flows out of the tank.

(a) Find the concentration, in kilograms per liter, of salt in the tank after 10 min. [Hint: Let A denote thenumber of kilograms of salt in the tank at t minutes after the process begins and use the fact that rate of increase in A = rate of input - rate of exit.

(b) After 10 min, a leak develops in the tank and an additional liter per minute of mixture flows out of the tank. What will be the concentration, in kilograms per liter, of salt in the tank 20 min after the leak develops?

Answers

Answer:

(a) 0.288 kg/liter

(b) 0.061408 kg/liter

Step-by-step explanation:

(a) The mass of salt entering the tank per minute, x = 0.2 kg/L × 5 L/minute = 1 kg/minute

The mass of salt exiting the tank per minute = 5 × (5 + x)/500

The increase per minute, Δ/dt, in the mass of salt in the tank is given as follows;

Δ/dt = x - 5 × (5 + x)/500

The increase, in mass, Δ, after an increase in time, dt, is therefore;

Δ = (x - 5 × (5 + x)/500)·dt

Integrating with a graphing calculator, with limits 0, 10, gives;

Δ = (99·x - 5)/10

Substituting x = 1 gives

(99 × 1 - 5)/10 = 9.4 kg

The concentration of the salt and water in the tank after 10 minutes = (Initial mass of salt in the tank + Increase in the mass of the salt in the tank)/(Volume of the tank)

∴ The concentration of the salt and water in the tank after 10 minutes =  (5 + 9.4)/500 = (14.4)/500 = 0.288

The concentration of the salt and water in the tank after 10 minutes = 0.288 kg/liter

(b) With the added leak, we now have;

Δ/dt = x - 6 × (14.4 + x)/500

Δ = x - 6 × (14.4 + x)/500·dt

Integrating with a graphing calculator, with limits 0, 20, gives;

Δ = 19.76·x -3.456 = 16.304

Where x = 1

The increase in mass after an increase in = 16.304 kg

The total mass = 16.304 + 14.4 = 30.704 kg

The concentration of the salt in the tank then becomes;

Concentration = 30.704/500 = 0.061408 kg/liter.

Calculating the salt concentration per liter of water we will find:

(a) [tex]0.288 kg/liter[/tex]

(b) [tex]0.061408 kg/liter[/tex]

The mass of salt entering the tank per minute:

[tex]X= (0.2)( 5) = 1 kg/minute[/tex]

The mass of salt exiting the tank per minute:

 [tex]\frac{5 * (5 + x)}{500}[/tex]

The increase per minute, Δ/dt, in the mass of salt in the tank is given as follows;  

[tex]\frac{\Delta}{dt} = \frac{x - 5 * (5 + x)}{500}[/tex]

The increase, in mass, Δ, after an increase in time, dt, is therefore;

[tex]\Delta = (x - 5 * (5 + x)/500)dt[/tex]

Integrating with a graphing calculator, with limits 0 at 10, gives;  

[tex]\Delta = (99X - 5)/10[/tex]

Substituting x = 1 gives:

[tex](99)( 1 - 5)/10 = 9.4 kg[/tex]

The concentration of the salt and water in the tank after 10 minutes = (Initial mass of salt in the tank + Increase in the mass of the salt in the tank)/(Volume of the tank). The concentration of the salt and water in the tank after 10 minutes:

[tex](5 + 9.4)/500 = (14.4)/500 = 0.288[/tex]

The concentration of the salt and water in the tank after 10 minutes = 0.288 kg/liter.

(b) With the added leak, we now have;

[tex]\frac{\Delta}{dt} = \frac{ (x - 6 ) (14.4 + x}{500} \\\Delta = \frac{(x - 6)(14.4 + x)}{500} dt[/tex]

Integrating with a graphing calculator, with limits 0 at 20, gives;

[tex]\int\limits^{20} _0 {\frac{(x - 6)(14.4 + x)}{500} dt}[/tex]

Where x = 1:

[tex]\Delta = 19.76(1) -3.456 = 16.304[/tex]

The increase in mass after an increase in = 16.304 kg. The total mass:

[tex]16.304 + 14.4 = 30.704 kg[/tex]

The concentration of the salt in the tank then becomes;

[tex]30.704/500 = 0.061408 kg/liter[/tex]

Learn more: brainly.com/question/11762787

Karen is taking a standardized test. The more questions she answers correctly, the greater her final test score will be.


Which of the variables is independent and which is dependent?

Independent
[ Select ]

Dependent
[ Select ]

Answers

Step-by-step explanation:

independent is questions answered correct

dependent is final test sore.

i think

independent is the correct scores. dependent is the final score

17+(−8)+(−8) help plweasee

Answers

Answer:

1

Step-by-step explanation:

17+(-8)+(-8)

9+(-8)

1

The answer is 1 because 17-8-8=1

A manufacturer allows a discount of 30% on the list of prices of goods bought by wholesalers. Calculate the discount allowed on the following prices.
a) 800,000
b) 1,000,000​

Answers

Answer:

a) 10 percent of 800,000 is 80,000

80,000*3=240,000

They will allow a discount of 240,000, making the price 560,000.

b) 10 percent of 1,000,000 is 100,000

100,000*3=300,000

They will allow a discount of 300,000, making the price, 700,000.

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