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

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]

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:

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]

Answer:

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

Step-by-step explanation:

Just say that ;)

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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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:

scale 1-1in=3ft

scale 2-1in=4ft

Answer:

Step-by-step explanation:

I feel like its C

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:

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:

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= < , >

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

Answer:

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

Step-by-step explanation:

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

Answer:

37

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

hope it helped

Answer:

30

Step-by-step explanation:

15x 2 =30

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.

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.

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Answer:

12

Step-by-step explanation:

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

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.

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

Answer:

19500 times in 26 mile race

Step-by-step explanation:

Answer:

15a + 12

Step-by-step explanation:

3*5a=15a

3*4=12

=15a+12

Answer:

15 points

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

Answer:

160.381

Step-by-step explanation:

Answer:

c) 160, remainder of 16

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]

Answer:

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