How many places to the left should the decimal point be moved to write 7.2 × 10-9 in standard form?

Answers

Answer 1

Answer: To write a large number in scientific notation, move the decimal point to the left to obtain a number between 1 and 10. Since moving the decimal point changes the value, you have to multiply the decimal by a power of 10 so that the expression has the same value.

Step-by-step explanation:


Related Questions

Help needed here. So Please help.

Answers

Answer:

I notice in the compensation strategy it's much simpler than basic subtraction.

Step-by-step explanation:

Just say that ;)

It’s the compensation

PLEASE HELP! Which table of values corresponds to the graph below? On a coordinate plane, a line goes through points (0, 0), (3, 1), and (6, 2). A 2-column table with 4 rows. Column 1 is labeled x with entries negative 3, 0, 3, 6. Column 2 is labeled y with entries negative 1, 0, 1, 2. A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 0, 1, 2. Column 2 is labeled y with entries negative 3, 0, 3, 6. A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 0, 1, 6. Column 2 is labeled y with entries negative 1, 0, 1, 2. A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 0, 1, 2. Column 2 is labeled y with entries negative 1, 0, 1, 6.

Answers

Answer: the awnser is B

Step-by-step explanation: First look at it nothing can be above 0 so if the graph has 1 before 0 its wrong then u have completed one step of the equation.

The data which satisfies the line is Option B.

What is the standard equation of a line?

The standard equation of a line is given by

y = mx+c

Here m is the slope and c is the y intercept

The slope can be determined by

m = (y₂ -y₁)/(x₂ -x₁)

The line passes through points (0, 0), (3, 1), and (6, 2).

m = 1/3

y = (1/3)x +c

c = 0

y = (1/3) x

The points in the table are substituted and then the data which satisfies is determined.

Column 1                                      Column 2

   X                                                              Y

-1                                                             -  3

0                                                                 0

1                                                                  3

2                                                                  6

This table satisfies the line.

To known more about standard equation of a line

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please help! ive been stuck on it for 30 mins :c

Answers

Here is the answer you’re welcome
a - cups of milk and tbs of chocolate syrup

Helpppppppppppppppplz

Answers

370 m mark because the runner is only 2 meters away from that one instead of the 360 meter mark which is 8 meters away

When rounding, if the digit in the one's place is higher than 5, you round up. If it's lower than 5, you round down.

Answer and explanation:

She's closer to 370m. Since the runner is at 368m and the digit in the ones place is higher than 5, you have to round up to 370. This means the runner is closer to 370m.

Hope this helps!

~ V

If the pattern in the table is extended to represent more equivalent ratios for 2:6, which pair of numbers would be in the columns? A multiplication table. In the column labeled 2, the numbers 2, 4, 6, 8, 10, 12, 14, 16, and 18 are highlighted. In the column labeled 6, the numbers 6, 12, 18, 24, 30, 36, 42, 48, and 54 are highlighted. 20 would be in the column for 2, and 60 would be in the column for 6. 20 would be in the column for 6, and 60 would be in the column for 2. 20 would be in the column for 2, and 56 would be in the column for 6. 20 would be in the column for 6, and 56 would be in the column for 2.

Answers

Answer: 65

Step-by-step explanation:

Answer: 20 would be in the column for 2, and 60 would be in the column for 6.

Step-by-step explanation:

what's 5x2 get it right and i will give you the cool crown :3

Answers

the answer to this very difficult question is 10 :)
It’s 10.
It’s the same thing as 5+5

What is (6x6)+3-2x1 ?

Answers

Answer:

37

:))))))))))))))))

hope it helped

Answer:

30

Step-by-step explanation:

15x 2 =30

Divide: 6736 ÷ 42 A) 16, r14 B) 16 C) 160, r16 D) 160

Answers

Answer:

160.381

Step-by-step explanation:

Answer:

c) 160, remainder of 16

what is 3x4 get it right

Answers

The answer for your question is 12.

Answer:

12

Step-by-step explanation:

I need help on these two please!

Answers

Answer:

See below

Step-by-step explanation:

Question 1:

7p + 5c = p

7p = p - 5c

6p = -5c

[tex]c = -\frac{6}{5}p[/tex]

Question 2:

y = 19x + 19b

y - 19x = 19b

[tex]b = \frac{y-19x}{19}[/tex]

wait someone beat me to the answer but yea those answers are right lol, they explained it better that i would’ve :(

PLEASE HELP ME AGAIN

Answers

Answer:

The answer to 28 is D. The answers for question 24 and more are below.

Step-by-step explanation:

24. 5 x 3/4 = 15/4

25. -2 x 8/3 - 16/3 (Multiply the numerator, cannot be divided by the denominator without being a mixed number)

26. 24/72 = 1/3 (simple multiplication and division, in this case both the numerator and denomator multiply each other)

27. 15/12 (again, simple multiplication.)

Answer:

[tex]3\frac{3}{4}[/tex] [tex]5\frac{1}{3}[/tex] [tex]\frac{1}{3}[/tex] [tex]1 \frac{1}{4}[/tex] Option A, Option B , Option C

Step-by-step explanation:

Multiply

24.

[tex]5 \times \frac{3}{4} \\\\\mathrm{Convert\:element\:to\:fraction}:\quad \:5=\frac{5}{1}\\\\=\frac{5}{1}\times \frac{3}{4}\\\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{b}\times \frac{c}{d}=\frac{a\:\times \:c}{b\:\times \:d}\\\\\frac{5}{1}\times \frac{3}{4}=\frac{5\times \:3}{1\times \:4}\\\\=\frac{15}{4}\\\\15\div 4=3 \: remainder 3 \\\\= 3\frac{3}{4}[/tex]

25.

[tex]-2 \times \frac{8}{3} \\\\\mathrm{Convert\:element\:to\:fraction}:\quad \:2=\frac{2}{1}\\=-\frac{2}{1}\times \frac{8}{3}\\\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{b}\times \frac{c}{d}=\frac{a\:\times \:c}{b\:\times \:d}\\\\\frac{2}{1}\times \frac{8}{3}=\frac{2\times \:8}{1\times \:3}\\\\=-\frac{16}{3}\\\\16\div 3 = 5 \:remainder\: 1 \\\\5 \frac{1}{3}[/tex]

26.

[tex]\frac{1}{4} \times \frac{3}{2} \times \frac{8}{9} \\\\\frac{1}{4}\times \frac{8}{9}=\frac{2}{9}\\\\=\frac{2}{9}\times \frac{3}{2}\\\\\mathrm{Cross-cancel\:common\:factor:}\:2\\=\frac{3}{9}\\\\\mathrm{Factor\:the\:number:\:}\:9=3\times \:3\\=\frac{3}{3\times \:3}\\\\\mathrm{Cancel\:the\:common\:factor:}\:3\\= \frac{1}{3}[/tex]

27.

[tex]25\times \frac{3}{5} \times \frac{1}{12} \\\\\frac{3}{5}\times \frac{1}{12}=\frac{1}{5}\times \frac{1}{4}\\=25\times \frac{1}{5}\times \frac{1}{4}\\\\\mathrm{Convert\:element\:to\:fraction}:\quad \:25=\frac{25}{1}\\\\=\frac{25}{1}\times \frac{1}{5}\times \frac{1}{4}\\\\\frac{25}{1}\times \frac{1}{5}=\frac{5}{1}\\\\=\frac{5}{1}\times \frac{1}{4}\\\\=\frac{5\times \:1}{1\times \:4}\\\\= \frac{5}{4} \\\\5\div 4 = 1\: remainder\: 1\\\\= 1\frac{1}{4}[/tex]

28.

[tex]\frac{3}{4} \\\mathrm{Convert}\:\frac{3}{4}\:\mathrm{to\:decimal\:by\:applying\:long\:division}\\\\\mathrm{The\:solution\:for\:Long\:Division\:of}\:\frac{3}{4}\:\mathrm{is}\:0.75\\\\3 : 4 = \frac{3}{4} \\\\75\% = \frac{75}{100} \\\\Cross\: cancel \: the\:common\:factor\:25\\\\75\div 25 =3\\100 \div 25 = 4\\\\= \frac{3}{4}[/tex]

I will give brainliest PLEASE HELP
Rihanna planned a rectangular courtyard for a park and made a scale drawing using inches as the unit of measurement. She originally planned for the length of the actual courtyard to be 54 feet, but she decided to change it to 72 feet. If the length of the courtyard is 18 inches in her scale drawing, which statement about the change of scale is true?

One inch represented 1 foot in the first scale, but now 1 inch represents 4 feet in the second scale.
One inch represented 4 feet in the first scale, but now 1 inch represents 3 feet in the second scale.
One inch represented 54 feet in the first scale, but now 1 inch represents 72 feet in the second scale.
One inch represented 3 feet in the first scale, but now 1 inch now represents 4 feet in the second scale.

Answers

Answer:

scale 1-1in=3ft

scale 2-1in=4ft

Answer:

Step-by-step explanation:

I feel like its C

plz help its due in a couple hours

Answers

The first answer is 3 3/4
The second one is “always odd”
The third one is 2 I think
The fourth one is 2666
The fifth one is 673400
Your welcome

2^-3 x 2^-4 I am really stuck on this question x=multiply

Answers

Answer:

0.0078125

Step-by-step explanation:

All you have to do is put it into you calculator but make sure to use parenthesis.Ex:( 2^-3) x(2^-4) and that will give you your answer.

Answer= 0.0078125

Quite easy

what is 0.68 in expanded form

Answers

Answer:0.68

Step-by-step explanation: 0

+0.6

+0.08

The expanded form of 0.68 is 0.6 + 0.08

Here, the number is given as,

0.68

What is Expanded form of a number?

The number that is represented by the sum of each digit multiplied by its place value is called the expanded form of the number.

Now,

Expanded form of 0.68 is given as,

⇒ 0.6 + 0.08

So, The expanded form of 0.68 is 0.6 + 0.08.

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plzz help! bralilest asap

Answers

Answer:

C: a reflection across the y axis rotated 180 degrees

Step-by-step explanation:

The y axis is a vertical line, the same like that the trapezoid is flipped across

The trapezoid is rotated 180 degrees across the y axis

Please explain your answer so I understand it and just don't get it right for the sake of getting it right. Thanks!

Answers

Answer:

none

Step-by-step explanation:

The first step you have to do is add 15 to both sides

so 12b > 36

next, you want to find out what b is so divide both sides by 12

b>3

As you represent this, you first want to find a line that is greater then three

this would be a because it is the only option that is greater then 3

However, because the dot is closed it can't be A so none of those options are correct

Tips:

if you are having trouble figuring out which lines are which remember that if the variable is on the left side of the equation to look at the sign. if you look at the sign then you see that the way the sign is going is also the way the arrow at the end of the line is going, but this trick only works if the variable is on the left side.

closed circle=≤, ≥

open circle= < , >

Divide the sum of 3/4 and 7/18 by the product of 11/12 and 2/5.

Answers

Answer:

205/66

Step-by-step explanation:

3/4 + 7/18 = 41/36

11/12 . 2/5 = 11/30

41/36 : 11/30 = 205/66

Answer:

                [tex]\bold{3\frac{7}{66}}[/tex]

Step-by-step explanation:

[tex]\left(\dfrac34+\dfrac7{18}\right)\div\left(\dfrac{11}{12}\cdot\dfrac25\right)\ =\ \left(\dfrac{27}{36}+\dfrac{14}{36}\right)\div\left(\dfrac{11}{6}\cdot\dfrac15\right)=\\\\\\ =\ \dfrac{41}{36}\div\dfrac{11}{30}\ =\ \dfrac{41}{36}\times\dfrac{30}{11}\ =\ \dfrac{41}{6}\times\dfrac{5}{11}\ =\ \dfrac{205}{66}\ =3\frac{7}{66}[/tex]

Some On PLEASE help me understand!!! Find f(4). Put your final answer in function form! f(x)=3x+5 g(x) = 2x^2-4 h(x) = -3x-9

Answers

f(4)=3(4)+5
12+5
f(4)=17

Answer:

             f(4) = 17

Step-by-step explanation:

Given function f(x), when you want to find f(4) you just put 4 for every x in the equation of the function.

f(x) = 3x + 5    ⇒    f(4) = 3(4) + 5 = 12 + 5 = 17

g(x) = 2x² - 4   ⇒    g(4) = 2(4)² - 4 = 2•16 - 4 = 32 - 4 = 28

h(x) = -3x - 9   ⇒    h(4) = -3(4) - 9 = -12 - 9 = -21

Asap Please help me!!!!!

Answers

Answer:1=4,700

2=7

3=200,000,000

4=18.7

5=40,000,000

6=$9.40

Step-by-step explanation:

1=4,725.806

4,700.000

2=7.049

7.000

3=165,023,912.5

200,000,000.0

4=18.692

18.700

5=42,199,279

40,000,000

6=$9.39

$9.40

your answer is $9.36

What is 6 to the 12th power ?

Answers

Answer:

2,176,782,336

Step-by-step explanation:

6 x 6 x 6 x 6 x 6 x 6 x 6 x 6 x 6 x 6 x 6 x 6 = 2176782336

217678336  let me explain

Step-by-step explanation: You have to multiply 6 every 12 times

6 x 6 =36

36 x 6 =216

216 x 6 =1296

1296 x 6 =7776

7776 x 6 =46656

46656 x 6 =279936

279936 x 6 =1679616

1679616 x 6 = 10077696

10077696 x 6 = 60466176

60466176 x 6 = 362797056

362797056 x 6 = 2176782336

there lmk if i'm wrong

What are the main differences between the Greatest Common Factor and the Least Common Multiple of a pair of number? Use the numbers 10 and 15 to show the differences in finding the GCF and LCM. Explain your work.

Answers

Answer:  GCF = 5    LCM = 30

Step-by-step explanation:

GCF is the biggest factor they have in common.

LCM is the smallest multiple they have in common.  This can be found by multiplying the GCF by the leftover values.

                                10                    15

                                ∧                      ∧

                             2 · 5                  3 · 5

GCF: 5

LCM: 5 · 2 · 3 = 30

Answer:

isdk

Step-by-step explanation:

An athlete's heart beats an average of 150 times per minute while running. How many times does the athlete's heart beat during a 26-mile race if the athlete runs at a pace of 5 minutes per mile?

Answers

Answer:

19500 times in 26 mile race

Step-by-step explanation:

26x5=130
150x130=19,500
19,500 is your Answer

Round 4,725.806 7.049 165,023,912.5 18.692

Answers

7.03 is the answer to your question

Solve for p
7 (p-9) = -34.3

Answers

14.04 yup pretty sure

HELLPPPPPPPPPPPPPPPPPPPPPPP ASAPPPPP PLZZZZ on a game show, sheila was asked 6 questions and missed all 6. Her total score was -90 points. If each missed question was worth the same amount of points, how many points was each one worth

Answers

I believe it would be 15 points each. I may be wrong though, but that’s what I got.

Answer:

15 points

-90 divided by 6 questions equals -15 meaning each question was worth 15 points

Use the distributive property to write the expression without parentheses. 3(5a+4)

Answers

Answer:

15a + 12

Step-by-step explanation:

3*5a=15a

3*4=12

=15a+12

15a +12

all you do is multiply 3 by everything go side of the parentheses

What mixed number is equivalent to 12/10

Answers

Answer:

1[tex]\frac{2}{10}[/tex]

Step-by-step explanation:

7 12 = 74 is equal to____.


3

7⁸

A,B,C, or D?​

Answers

Wait what? I can help solve this but do you mean 7+12 or something?
I think the answer is b

I need help with all of these problems but 13B you can do all of them some of them or just 1
LOTS OF POINTS please answer ASAP and show your work ( I want sleep) please and thanks ​

Answers

i have no idea to be honest
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