Find the difference between the polynomials:



–3x+x^3–2x^2 and 4x^3–2x^2–4x

Answer:

  (-27x -2)/21

Step-by-step explanation:

Perhaps you want to combine the two fractions. This is done using a common denominator.

  [tex]\dfrac{4-2x}{7}-\dfrac{3x+2}{3}=\dfrac{3(4-2x)}{7\cdot3}-\dfrac{7(3x+2)}{7\cdot3}\\\\=\dfrac{3(4-2x)-7(3x+2)}{21}=\dfrac{12-6x-21x-14}{21}=\boxed{\dfrac{-27x-2}{21}}[/tex]

__

Additional comment

If you need to simplify this further, you can apply the distributive property.

  = -9/7x -2/21

Answer:

 x        45

___ = ____ (solve for x) = 39.6

88      100

88 + 39.6 = £127.60, was the original price.

Step by step explanation:

Step 1:

[tex]2(x-6) + 6 = 4x - 4[/tex]

Step 2:

[tex]⇒2x - 12 + 6 = 4x - 4[/tex]

Step 3:

[tex]⇒2x - 6 = 4x - 4[/tex]

Step 4:

[tex]⇒ - 6 + 4 = 4x - 2x[/tex]

Step 5:

[tex]⇒2x = - 2[/tex]

Step 6:

[tex]⇒x = \dfrac{ - 2}{2} [/tex]

Step 7:

[tex]⇒x = - 1✓[/tex]

[tex]◈verification◈[/tex]

Step 1:

[tex]2( - 1-6) + 6 = 4( - 1) - 4[/tex]

Step 2:

[tex]⇒2( - 7) + 6 = - 4 - 4[/tex]

Step 3:

[tex]⇒ - 14 + 6 = - 8[/tex]

Step 4:

[tex]⇒ - 8 = - 8[/tex]

[tex]†hence \: vertified†[/tex]

Answer:

D

Step-by-step explanation:

you mean the formula is 4×pi×r² (not 4×pi/r²), right ?

then the correct answer is the sphere (ball).

the surface area of a cylinder is

top and bottom circle area = pi×r² each = 2×pi×r² both

and the mantle is 2×pi×r×height

the surface area of a block has nothing to do with pi.

it is the sum of 6 rectangles.

the surface area of a cone is

A = πr(r + sqrt(h² + r²))

again, also depending on "hight"

The best apporximation for the volume of this ball is 382 cubic inches.

The volume of the ball is calculated by the formula V = 4 / 3πr³. This formula is the same in the whole world.

Given

A regulation basketball has a diameter of about 9 in.

The radius of the ball is;

[tex]\rm Radius = \dfrac{Diameter}{2}\\\\Radius=\dfrac{9}{2}\\\\Radius=4.5\ inches[/tex]

The volume of the ball is;

[tex]\rm Volume =\dfrac{4}{3}\pi r^3\\\\Volume=\dfrac{4}{3} \times 3.14 \times 4.5^3\\\\Volume =\dfrac{144.53}{3}\\\\Volume = 381.51\\\\Volume = 382 \ In^3 \ apporx[/tex]

Hence, the best apporximation for the volume of this ball is 382 cubic inches.

To know more about volume click the link given below.

https://brainly.com/question/10647788

Answer:

No

Step-by-step explanation:

the value x is used twice, meaning when graphed it is going to meet to points at the same time, which makes it not a functions.

- i hope this makes sense

Answer:

B) the slope is -10 and the y-intercept is +1

Step-by-step explanation:

The lope comes before the x, and the y-intercept comes after the x. Hope this helps.

Answer:

the answer is B

Step-by-step explanation:

i did the math QUIZ 8th grade EDG

Answer:

I think the final price is $252.19.

Step-by-step explanation:

Hope it's right! Good luck, dear! <3

201.75 price after reduction then with the mark up it gets changed to 252.19

Answer:

4.4

Step-by-step explanation:

Answer:

y=−1/3x+3

Step-by-step explanation:

Answer:

d) line l and m

Step-by-step explanation:

Line l and line m are parallel because <2 = <16 by the alternate exterior theorem.

Answer:

8

Step-by-step explanation:

32x1 over 4 is 32 over 4, or 32 divided by 4, which is 8.

Answer:

It's 16

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    x^2+(x-4)^2-(80^2)=0

Step by step solution :

STEP

1

:

1.1     80 = 24•5

(80)2 = (24•5)2 = 28 • 52

Equation at the end of step

1

:

 ((x2) +  ((x - 4)2)) -  (28•52)  = 0

STEP

2

:

STEP

3

:

Pulling out like terms

3.1     Pull out like factors :

  2x2 - 8x - 6384  =   2 • (x2 - 4x - 3192)

Trying to factor by splitting the middle term

3.2     Factoring  x2 - 4x - 3192

Answer:

10 hours

Step-by-step explanation:

First we need to find the rate Chad is driving. The rate is equal to distance/time, so we do 168/2, which is 84 mph. Then we have to find the time, which is distance/rate, so that would be 840/84, which is 10 hours.

Answer:

10 hours

Step-by-step explanation:

If Chad drove 168 miles in 2 hours than he drove 84 miles in one hour. If he drove 840 miles than you divide 840 by 84 and you get 10 hours. To check your work you can do 84*10= 840 miles 84=representing the miles per hour and 10=representing the amount of hours he drove.

Answer:

B

Step-by-step explanation:

[tex] \sqrt{10} = 3.162277...[/tex]

[tex]3 < \sqrt{10} < 4[/tex]

Answer:

Where is the graph ?? It's missing.

need more information

The probability of rolling a 1 or a 2 is P = 4/9, this means that around 4/9 out of the N times we perform the experiment, we will see a 1 or a 2.

We assume that each number has the same probability of rolling up in both dices.

So, in each dice, the probability of rolling a 1 or a 2 is 2 out of 6, or:

p = 2/6 = 1/3

And if we get these on one of the dice, we don't want them in the other,

The probability of not rolling a 1 or a 2 is:

q = 4/6 = 2/3

The joint probability is the product of the two individual probabilities:

P = (1/3)*(2/3)

But, we also need to consider the case where we don't get an 1 or a 2 in the first dice roll, and we do get it on the second dice, then there are 2 permutations, so we need to add a factor 2.

P = 2*(1/3)*(2/3) = 4/9

Now we want to find how often a 1 or a 2 appear against the total number of appearances.

If the total number of appearances is N, then in 4/9 of these, the number 1 or 2 will appear, this is:

N*(4/9) times.

If you want to learn more about probability, you can read:

https://brainly.com/question/251701

Answer:

A i think

Step-by-step explanation:

when theres function i like to think of vending machines

if you pick 5 you get soda

but in b if you pick 5 you get soda,candy,orange juice, etc.

so b is wrong

c is the same

if you pick 1 you get chips

but in c if you pick 1 you can also get chips, gummies, etc

i feel like D is wrong but im still thinking of how to explain it, ill edit my comment when i figure it out!

Edit:

D may look right, but pay very attention! theres some where 1 is equal to another number and where 2 also equals another number

(1, 2) and (1, 0)

(2, 3) and (2,1)

Answer:  If you mean 5% of $14.98, it is $0.75  75 cents

If you mean 14.98 represents a 5% commission on what sale amount

The sale amount was $299.60

Step-by-step explanation:

Change the percent to a decimal and  multiply by the sale amount.

0.05 × 14.98 = .749  Round to .75

If 14.98 is the 5% commission,  divide 14.98/.05= 299.60

Answer:

we dont know

Step-by-step explanation:

whwhhsjsksnd

Answer:

y =3 x 2 6 x +3 is the answer

Step-by-step explanation:

7m-7-6m-16=1+4m

7m - 6m - 7 - 16 = 1 + 4m

    m       -   23  = 1 + 4m

m - 23 + 23 = 1 + 23 + 4m

m = 4m + 24

m - 4m = 4m - 4m + 24

-3m = 24

m = 24: (-3)

m = - 8

hi again,

7m-7-6m-16=1+4m

7m-6m-4m=1+7+16

-3m=24

m=24/-3

m=-8

Hope this helps

Answer:

58,241

Step-by-step explanation:

I just searched it up and it said the answer!

The first term, f(1) = 4, to find the second term,

which is f(2-1) = f(1) = 4, so second term, f(2) = 4+5

hence 9, to find the terd term,

which is f(3-1) = f(2) = 9, so terd term, f(3) = 9+5

hence 14, so common difference is 5.

12 term is 59.