Simplify the following expressions -18x2+3x-2x2+5 the first 2 is a small and the third 2 is small

Step-by-step explanation:

4000 Watts means that if you run the machine for one hour, you are using 4000 watt-hours or more commonly used 4 kWh (kilo means 1000).

for 14 cents per kWh we have then

14 × 4 = 56 cents per day

now, if the other model uses only 2000 Watts and still only needs 1 hour for the same job (which is in reality NOT a given, very often such a machine means that it will have to run close to 2 hours) it would cost

14 × 2 = 28 cents per day, saving 28 cents per day.

for a year running the dryer daily

we would save

28 × 365 = 10220 cents = $102.20 savings per year

Answer:

u can do something like u have 8 pencils and 2 pens

Step-by-step explanation:

cause two divided by two is four and u only have to divide it once so that how u get that answer

We have that  The Total Number of People is

[tex]X\approx 137[/tex]

From the question we are told that

sample of 200

income is $48,000 per year

standard deviation of $9000

Generally the equation for the Ratio of people  is mathematically given as

[tex]Y=P(\frac{39000-48000}{9000}<z<\frac{57000-48000}{9000})\\\\\Y=P(z<1))-(1-p(z-1))\\\\Y=0.8413-0.1582\\\\\Y=0.6826[/tex]

Therefore

The Total Number of People is

[tex]X=0.6826*200\\\\X\approx 137[/tex]

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Answer:

i dont know i just want points

Step-by-step explanation:

Answer:

no its not linear

Step-by-step explanation:

here is one example of a linear equation: y = 5x + 12

Answer:

To the thousandth place

Answer:

275

Step-by-step explanation:

x + x + 50 = 600

2x = 550

x = 275

El tamaño del paso se puede determinar mediante progresión aritmética.

Para determinar el tamaño del paso, usamos lógica aritmética de prorrateo.

Del formulario de progresión aritmética, donde:

[tex] a_{n} \: = a \: + \: (n - 1)d[/tex]

n = número de términos (número de pasos) = 9

d = diferencia común (tamaño de los pasos)

[tex] a_{n}[/tex]

Valor del enésimo término = 2

a = primer término = 1

Usando los parámetros, podemos obtener el valor de d que es el tamaño de cada paso.

Ingresando los valores en la fórmula:

2 = 1 + (9 - 1) d

2 = 1 + 8d

2 - 1 = 8d

1 = 8d

d = 1/8

d = 0,125

Por tanto, el tamaño del paso es de 0,125 metros.

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Answer:

answer is 6

Step-by-step explanation:

m^2 - 4m + 2

-2(2) - 4(-2) + 2

-4 + 8 + 2

-4 + 10

6

it is an odd number containing 7 on unit place.

Answer:

its odd.

Step-by-step explanation:

if the unit place is divisible by two or it is zero then the number is even otherwise it is odd.

Answer:

24.464~20 pounds

Step-by-step explanation:

11.12*2.20

=24.464

24.46=20

Hope this helps :)

The best estimate of the weight of the box in pounds is 2,446.4 pounds.

Given that, a box filled with books weighs 1112 kilograms.

We need to find what is the best estimate of the weight of the box in pounds.

To convert kilograms to pounds, multiply your kilogram measurement by 2.2.

Given, 1 kilogram = 2.20 pounds

Now, 1112×2.2=2,446.4 pounds

≈2,446

Therefore, the best estimate of the weight of the box in pounds is 2,446  pounds.

To learn more about conversion from kilogram to pounds visit:

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Answer:

1980

Step-by-step explanation:

Answer:

The length of [tex]BC[/tex] is [tex]3[/tex] units.

Step-by-step explanation:

The points [tex]A,B,C[/tex] are collinear and [tex]B[/tex] is in middle of [tex]A,C[/tex], so the expression that can justify the given statement is,

[tex]AB+BC=AC[/tex]

The given values are,

[tex]\begin{aligned}AB&=10\\AC&=13\end{aligned}[/tex]

Substituting values in the expression, it becomes,

[tex]\begin{aligned}AB+BC&=AC\\10+BC&=13\\BC&=13-10\\BC&=3\end{aligned}[/tex]

[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]

[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]

Given,

Let's solve it now :-

[tex] \sf \: c - 5d \\ \\ \sf \: Substitute \: the \: values \: of \: c \: and \: d \\ \\ \sf c - 5d \\ \rightarrow \sf(21) - 5(4) \\ \sf \rightarrow21 - 20 \\ = \boxed{\boxed{\bf \: 1}}[/tex]

Answer:

3:2

plsss mark me brainliestt

Step-by-step explanation:

25 games played

15 won

10 lost

15:10

3:2

9514 1404 393

Answer:

   [[. . 3 6 .][1 3 4 9 .][9 2 . 7 1][. 1 2 8 3][. 4 9 . . ]]

Step-by-step explanation:

It is helpful to remember that the first four digits {1, 2, 3, 4} total 10, and the last four digits {6, 7, 8, 9} total 30. It is also worthwhile to note that the smallest sum of two digits is 3 = 1+2, and the largest sum of 2 digits is 17 = 8+9. Some sums can only be made one way: 4 = 1+3, 16 = 7+9.

Here, we will refer to rows 1-5 from the top down, and columns 1-5 from the left to right.

__

Based on the above, column 5 can only be made one way: 1+3. Column 4 can only be made one way: 9+8+7+6. Then the choices for row 3B will be 1+7 or 5+3. We know it can't be 5+3 because 5 is not part of column 4. This makes our first fill-in (row, column) be (3,4)=7, (3,5)=1, (4,5)=3.

The sum of the remaining cells in row 4 must be 14-3 = 11, and cell (4,4) must be 6, 8, or 9. It cannot be 9, because that would require the remaining two cells to have a sum of 2, which they cannot. So, cell (4,4) is 6 or 8.

Cell (1,4) cannot be 9, either, because we cannot use 0 in cell (1,3). Then the only place for 9 in column 4 is in cell (2,4)=9.

With cell (1,4) being restricted to 6 or 8 (the two remaining numbers in column 4, cell (1,3) must be 3 or 1, and cell (2,3) must be 4 or 6. It cannot be 6 because that would require a sum of 2 in the first two cells of row 2, so (2,3)=4, (1,3)=3, and (1,4)=6. This makes (4,4)=8 and the remaining two cells of row 4 must be 1 and 2. 1 cannot go in (4,3), so we must have (4,3)=2 and (5,3)=9, (5,2)=4, (4,2)=1. That leaves 2 and 3 for rows 2 and 3 of column 2. The first two cells of row 2 must total 4, so must be 1 and 3. Cell (2,2) cannot be 1, so must be 3, leaving (2,1)=1, (3,1)=9, (3,2)=2 and that completes it.

The fill-ins are ...

   [. . 3 6 .]

  [1 3 4 9 .]

  [9 2 . 7 1]

  [. 1 2 8 3]

  [. 4 9 . . ]

Answer:

352 is the answer

Step-by-step explanation:

32×11

= 352

Answer:

D) no solution

Step-by-step explanation:

2x - 4y = 14

X + 2y = 7

2x - 4y + x + 2y = 14 + 7

2x - 4y + x + 2y = 21

3x - 2y = 21

no solution

Answer:

x=2y+7

step by step explanation:

2x-4y=14

2(x-2y)=14

x-2y=14/2

x-2y=7

x=2y+7

Answer:

The unit rate is $20 per hour?

Step-by-step explanation:

For every hour Mike is tutored, he pays $20. 20:1

If Mike payed $20 every two hours, then the unit rate would be $10 per hour.

Answer:

195

Step-by-step explanation:

65x3

Step-by-step explanation:

6m+7n+5m-3n

11m+7n-3n

11m+4n

Answer: 28 per gallon

Answer:

18

Step-by-step explanation:

They want u to find MR, and I can do that by taking CR - CM

But first we need to know what is x

Now u know CM + MR =CR

Therefore

(3x - 2) + (x+8) = 46

3x - 2 + x + 8 = 46

4x + 6 = 46

4x = 40

x = 10

Now we know x is 10, let's just make it easier first

CM = 3x-2

= 3 (10) - 2

= 28

MR = x + 8

= 10 + 8

= 18

Now we got all our values

They want MR?

MR = x + 8

= 10 + 8

= 18

HERE U GO

Answer:

18

Step-by-step explanation:

cm=3x -2

mr=x +8

cr=46

cm+mr=cr

3x-2+x+8=46

4x+6=46

4x=46-6

x=40/4

x=10

hence, mr=x+8

=10+8

=18

Answer:

Please write in english

Answer:

The area of the shaded region is the difference between the areas of the rectangle and the square.

Step-by-step explanation:

Rewrite the root be,

[tex]\sqrt{39}=\sqrt{3\cdot13}=\sqrt{3}\sqrt{13}[/tex]

We know that [tex]\sqrt{3}\approx1.7,\sqrt{13}\approx3.6[/tex]

Write decimals as fractions and multiply them,

[tex]\frac{17}{10}\cdot\frac{36}{10}=\frac{612}{100}=6.12[/tex]

So it should be on somewhere around the next tick from 6.

Hope this helps :)

Answer:

1 is your answer. I HOPE IT WILL HELP YOU A LOT.