plz help me only 4 b​

Answer:

A) 1.157x10^-6

B)6.789x10^11

Answer:

a. 1.157x10^-6

b. 6.789x10^11

Step-by-step explanation:

this calculator: https://www.calculatorsoup.com/calculators/math/scientific-notation-converter.php

Answer:

15

Step-by-step explanation:

its more easier if u do it on a calulator

Answer:

I think purple is 50% green 30% and orange 20%. sorry if I get it wrong

Answer:

It is 270, 810 and 2430

Step-by-step explanation:

10 x 3 = 30

30 x 3 = 90

90 x 3 = 270

270 x 3 = 810

810 x 3 = 2430

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[tex]\heartsuit[/tex] Greetings [tex]\heartsuit[/tex]

Sincerely: anapaulacbellido

Answer:

[tex]\dfrac{35}{9}[/tex]

Step-by-step explanation:

[tex]3.\overline{8}\\\\=3+\dfrac{8}{9} \\\\=\dfrac{27}{9} +\dfrac{8}{9} \\\\=\dfrac{35}{9}[/tex]

Answer:

c

Step-by-step explanation:

let x represent the equally priced bracelets of which there are 4 , so 4x

We know she spent $64 on rings and a total of $200 was spent , then

64 + 4x = 200 ← represents the situation

x represents the cost of a bracelet

Answer:

c

Step-by-step explanation:

the total amount paid at the jewelry is 200

64 was spent on rings

the rest amount of money was spent on 4 bracelets

let the price of one bracelet be x

200=4(x)+64

200=4x+64

Answer:

y = 3x -1

Step-by-step explanation:

always remember the formula y = mx + c

m is the gradient and c is the y intercept

you already know the gradient to be 3 since the line is parallel. so, let's just imagine you are standing on the point -4, 1

for every 1 step you move on the x axis, your y value will increase by 3

thus your y intercept will be -4 + (1x3) which is - 1

by substituting the values you have just gotten, you will get your answer

Answer:

see explanation

Step-by-step explanation:

Substitute the given values of x into f : x → [tex]\frac{3}{7}[/tex] x + 4

x = - 14 → ([tex]\frac{3}{7}[/tex] × - 14) + 4 = (3 × - 2) + 4 = - 6 + 4 = - 2

x = 28 → ( [tex]\frac{3}{7}[/tex] × 28) + 4 = (3 × 4) + 4 = 12 + 4 = 16

x = [tex]\frac{7}{8}[/tex] → ([tex]\frac{3}{7}[/tex] × [tex]\frac{7}{8}[/tex] ) + 4 = [tex]\frac{3}{8}[/tex] + 4 = [tex]\frac{3}{8}[/tex] + [tex]\frac{32}{8}[/tex] = [tex]\frac{35}{8}[/tex]

x = - [tex]\frac{2}{9}[/tex] → ([tex]\frac{3}{7}[/tex] × - [tex]\frac{2}{9}[/tex] ) + 4 = ([tex]\frac{1}{7}[/tex] × - [tex]\frac{2}{3}[/tex]) + 4 = - [tex]\frac{2}{21}[/tex] + [tex]\frac{84}{21}[/tex] = [tex]\frac{82}{21}[/tex]

Answer:

See below in bold.

Step-by-step explanation:

1. 3/7 * -14 + 4

   = -6 + 4

    = -2.

2. 3/7 * 28 + 4

   = 12 + 4

    = 16.

3 3/7 * 7/8 + 4

   =  3/8 + 4

    =   35/8 or 4 3/8.

4. 3/7 * -2/9 + 4

   = -6/63 + 4

   = -2/21 + 4

    = -82/21 or -3 19/21.

Answer:

falls creek hhhhhhhjjkk

Answer:

7.5 degrees per hour.

Step-by-step explanation:

:)

The amount paid for both internet service will be equal after 5 months.

The given values for the two companies include the following;

                          Installation fee         price per month

Company A       $60.00                     $42.95

Company B        $25.00                     $49.95

Let the month in which you will pay the same total amount = x

Since the total amount paid will be equal, the final equation becomes;

60   +  42.95x  = 25   +  49.95x

The value of x is calculated as follows;

[tex](49.95 - 42.95)x = 60- 25\\\\7x = 35\\\\x = \frac{35}{7} \\\\x = 5[/tex]

Thus, the amount paid for both internet service will be equal after 5 months.

Learn more here: https://brainly.com/question/558496

We are to find an equation you can use to find in which month, x, you would pay the same total for each internet service.

The equation is 60 + 42.95x = 25 + 49.95x and the number of months when you would pay the same total amount for each internet service is 5 months

let

x = number of months

Company A

Installment fee = $60.00

price per month = $42.95

Total cost = 60 + 42.95x

Company B

Installment fee = $25.00

Price per month = $49.95

Total cost = 25 + 49.95x

The equation: Equate total cost of company A and company B

60 + 42.95x = 25 + 49.95x

60 - 25 = 49.95x - 42.95x

35 = 7x

Divide both sides by 8

x = 35/7

x = 5 months

Read more:

https://brainly.com/question/11728997

Answer:

No Solutions

Step-by-step explanation:

Multiply the first equation by 5,and multiply the second equation by 2 to get a least common multiple for the x's.

5(4x+6y=3)

2(−10x−15y=−4)

It becomes:

20x+30y=15

−20x−30y=−8

Add these equations to eliminate y:

0=7

Answer:

No solutions.

We know that, Two angles are said to be complementary, if the sum of their measures is 90°.

According to the Question,

⇒ ∠ABD + ∠DBC = 90°

⇒ (2x + 30)° + (3x + 20)° = 90°

⇒ 2x + 30° + 3x + 20° = 90°

⇒ 5x + 50° = 90°

⇒ 5x = 90° - 50°

⇒ 5x = 40°

⇒ x = 40°/5

⇒ x = 8

So, the measure of each angle will be,

⇒ ∠ABD = (2x + 30)°

= 2 × 8 + 30°

= 16 + 30°

= 46°

⇒ ∠DBC = (3x + 20)°

= 3 × 8 + 30°

= 24 + 30°

Lets simplify

[tex]\\ \sf\longmapsto \dfrac{x}{3}=-7.\dfrac{x}{3}[/tex]

[tex]\\ \sf\longmapsto \dfrac{x}{3}=\dfrac{-7x}{3}[/tex]

[tex]\\ \sf\longmapsto -7[/tex]

Hence its not a fraction

Answer:

16: 74 17: x = -3

Step-by-step explanation:

16.

114 - 40 = 74

17.

x + 143 + x + 30 = 167

2x + 173 = 167

2x = -6

x = -3

Answer:

Step-by-step explanation:

An equation is 5p + 2 = 18.5.

The 1950 population was approximately 3.3 million.

Step-by-step explanation:

If p  million was the population in 1950 the equation is:

5p + 2 = 18.5

5p = 16.5

p = 16.5 / 5

p =  3.3 million.

Answer:

Step-by-step explanation:

Prime factors of 2100 are:

The single-digit divisors are:

-----------------------------------------------------------------

Another solution is you divide 2100 by all numbers 1 through 9 and list those divisible:

So all the numbers from 1 to 7

Answer:

<1 and <2 - Corresponding angles

6 and <1, -Aternative exterior angles

<5 and <6-Corrosponding Angles

Answer:

1 . Chicken curries - £6.20 X 2 =  £12.40  15% of  £ 12.40 is £1.86 off = £10.54  +

2 .Onion Soups - £4.00 x 2 = £8.00    15% OF £8.00 is £ 1.20 off =       £6.80

3. One Naan bread = £.2.80    15% of £ 2.80 is £ 0.42 p  off  =              £2.38

4. One mint parfait = £ 3.80     15% of £ 3.80 is £ 0.57 p off  =               £ 3.23

5 .One ice cream delight = £2.60  15% of £ 2.60 is £0.39 p off             £ 2.21

                                                                                                           =      £ 25.16

Step-by-step explanation:

1. to find out 15% from £12.40 you can divide 12.40 / 100 = 0.124 and then times 0.124 by the percentage = 0.124 x 15 = £ 1.86

2 . to find out 15% from £8.00 you divide again £8.00 / 100 =0.08 and then times 0.08 by the percentage 15 %= 0.08 x 15 = £1.20 off

3.  £ 2.80 / 100 =0.028 x 15% =  £0.42 p off

4.    £ 3.80 /100 = 0.038 x 15% = £ 0.57 p off

5.     £ 2.60 /100 = 0.026 x 15% = £ 0.39 p off

Hope that helped !

Answer:

63

Step-by-step explanation:

We are taking a dilation of 3, so that means we are multiplying by 3. We multiply 3 to 21 to get 63.

Answer:

2,4 8,8

Step-by-step explanation:

im not sure

I hope this help you

El consumo de agua en el año, hasta el 1 de septiembre, de la casa mencionada en el ejercicio es:

Cálculo de consumo de agua en metros cúbicos.

Para realizar el cálculo del consumo de agua en el año, debes tener en cuenta primero el consumo total de enero a noviembre brindado por el ejercicio, el cual es de:

Consumo total de enero a noviembre = 200 [tex]m^{3}[/tex]

Pero, recuerda que la casa fue arrendada el 1 de septiembre, por lo cual un arrendador requeriría verificar el agua consumida antes del arrendamiento (1 de septiembre) y el agua consumida después del arrendamiento, teniendo como base el consumo total mencionado, por tal motivo se utiliza la siguiente fórmula:

En el cálculo se resta el consumo de septiembre puesto que el arrendamiento inicia el 1 de septiembre, cuando apenas inicia el mes y por lo tanto, aún no se ha consumido agua en la casa.

Usando los valores en metros cúbicos dados por la gráfica, se procede a reemplazar la fórmula:

Y se procede a operar:

De esta manera, puedes identificar que el consumo de agua en el año, hasta el 1 de septiembre fue de 146 [tex]m^{3}[/tex].

Si te gustan estos ejercicios matemáticos que hablan sobre consumo, puedes visitar el siguiente enlace https://brainly.com/question/16934925?referrer=searchResults

Answer: EBD = EB + BD31 = t + t+931 = 2t+922 = 2tt=11EB=11 and BD=20

Answer:

x = -4 and 4

Step-by-step explanation: