( 8n - 3n^4 + 10n ^2 ) - ( 3n^2 + 11n ^4 - 7)

Answer:

Step-by-step explanation:

In the 3rd question, we are given the equation x ^ 3 + x ^ 2 + 2x + 24. One of the factors is x + 3. Now, we can use long division to find that the equation we have left is x^2 - 2x - 8. We can just factor this to get (x - 4) (x + 2). In the 3rd question, possible factors for the coefficient are 1, 2, -1, -2. Possible factors for the constant are 1, 7, -1, -7. Now, we can try out all of them. The possible factors are 1, 7, -1, -7, 2, 14, -2, -14.

Answer: [tex]2514.28\ cm^3[/tex]

Step-by-step explanation:

Given

The height of the cylinder is [tex]h=8\ cm[/tex]

Circumference of the base is [tex]20\pi \ cm[/tex]

suppose 'r' is the radius of the cylinder

[tex]\Rightarrow 2\pi r=20\pi\\\Rightarrow r=10\ cm[/tex]

The volume of a cylinder is [tex]V=\pi r^2h[/tex]

[tex]\Rightarrow V=\pi \times 10^2\times 8=2514.28\ cm^3[/tex]

Answer:

9 ft

Step-by-step explanation:

Pythagorean theorem:

x = the  square root of 15 square minus 12 square

x= square root of 225-144

x= square root of 81

X = 9

Answer:

D

Step-by-step explanation:

because i see it xD but like > 15 mean you going to the left soooo and u got to satrt at 15

Answer:

71

Step-by-step explanation:

I hope this helps u! :D

Answer:

71

Step-by-step explanation:

4 to the third = 4 x 4 x 4 = 64

64 + 7 = 71

Answer:

8

Step-by-step explanation:

its cuuz it is

Answer:

x = 8

Step-by-step explanation:

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

                    4/9-(x/18)=0

Step by step solution :

STEP

1

:

            x

Simplify   ——

           18

Equation at the end of step

1

:

 4     x

 — -  ——  = 0

 9    18

STEP

2

:

           4

Simplify   —

           9

Equation at the end of step

2

:

 4     x

 — -  ——  = 0

 9    18

STEP

3

:

Calculating the Least Common Multiple :

3.1    Find the Least Common Multiple

     The left denominator is :       9

     The right denominator is :       18

       Number of times each prime factor

       appears in the factorization of:

Prime

Factor   Left

Denominator   Right

Denominator   L.C.M = Max

{Left,Right}

3 2 2 2

2 0 1 1

Product of all

Prime Factors  9 18 18

     Least Common Multiple:

     18

Calculating Multipliers :

3.2    Calculate multipliers for the two fractions

   Denote the Least Common Multiple by  L.C.M

   Denote the Left Multiplier by  Left_M

   Denote the Right Multiplier by  Right_M

   Denote the Left Deniminator by  L_Deno

   Denote the Right Multiplier by  R_Deno

  Left_M = L.C.M / L_Deno = 2

  Right_M = L.C.M / R_Deno = 1

Making Equivalent Fractions :

3.3      Rewrite the two fractions into equivalent fractions

Two fractions are called equivalent if they have the same numeric value.

For example :  1/2   and  2/4  are equivalent,  y/(y+1)2   and  (y2+y)/(y+1)3  are equivalent as well.

To calculate equivalent fraction , multiply the Numerator of each fraction, by its respective Multiplier.

  L. Mult. • L. Num.      4 • 2

  ——————————————————  =   —————

        L.C.M              18  

  R. Mult. • R. Num.       x

  ——————————————————  =   ——

        L.C.M             18

Adding fractions that have a common denominator :

3.4       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

4 • 2 - (x)     8 - x

———————————  =  —————

    18           18  

Equation at the end of step

3

:

 8 - x

 —————  = 0

  18  

STEP

4

:

When a fraction equals zero :

4.1    When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

 8-x

 ——— • 18 = 0 • 18

 18

Now, on the left hand side, the  18  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  8-x  = 0

Solving a Single Variable Equation:

4.2      Solve  :    -x+8 = 0

Subtract  8  from both sides of the equation :

                     -x = -8

Multiply both sides of the equation by (-1) :  x = 8

One solution was found :

x = 8

Answer:

The volume of the rectangular prism is [tex]3456ft^2[/tex].

Step-by-step explanation:

18 * 12 * 16 = [tex]3456ft^2[/tex]

Answer:

9 more people

Step-by-step explanation:

There are 15 first prize winners and 4 grand prize winners

that means there are 15 - 4 more first prize winners than grand prize winners

15 - 4 = 9

9 more people won first prize than the grand prize

Answer: b

Step-by-step explanation: :)

Answer: 61

Step-by-step explanation:

Answer:

61

Step-by-step explanation:

Work your way from the outside and you'll get 61

Answer:

B

Step-by-step explanation:

2y=-3x+6

y = -0.5x + 3

this is a function because it is a linear equation that isn’t undefined

Answer:

P = 8x + 4

Step-by-step explanation:

P = 2(l + w)

P = 2(5 + 4x - 3)

P = 2(4x + 2)

P = 8x + 4

Answer:

The answer would be -3.

Step-by-step explanation:

If you follow PEMDAS, the first set of parenthesis, (-4)(2), would equal -8. The next set of parenthesis, (10/2), would equal 5. Adding -8 and 5 together gives you -3.

Answer:

D.) x2 + (y + 1)2 = 1

Step-by-step explanation:

No explanation needed just need to say something here.

Answer:

x2 + (y + 1)2 = 1

Step-by-step explanation:

Answer:

C is correct I think.

Step-by-step explanation:

Tell me if I am right.

Have a nice day!

Answer:oh it is - 5 I had this in my questions for homework

Step-by-step explanation:you have to multiply and subtract and do that many times

Answer: x=1/2,-2

not sure if that is what you need

Step-by-step explanation:

Answer:√40 to be the square root of 40, and can investigate between which two whole numbers it lies. The number 40 lies between 36 and 49 hence √40 lies between 6 and 7.

Answer:

Between 6 and 7

Step-by-step explanation:

40 lies between 36 and 49

find square root of each (6 and 7)

Answer:

P.y = [tex]4^{x}[/tex]

Step-by-step explanation:

From the given question, since Jesse sends the email to 4 people and the 4 people rebroadcast it to another 4 persons each. And this process continues for a required or given round x, then this is an example of an exponential function.

Thus, the number of emails sent for a given round can be expressed as;

                    y = [tex]4^{x}[/tex]

Therefore, the appropriate answer is y = [tex]4^{x}[/tex].

So that for four rounds (x = 4), the number of emails sent can be determined as;

y = [tex]4^{x}[/tex]

  = [tex]4^{4}[/tex]

y = 256

Answer: y=4^x

Step-by-step explanation:

Exponential growth

Y=ab^x

Answer:

No

Step-by-step explanation:

$68 - $24 - $35 = $9

$9 < $12

Therefore, Alexa can't afford to buy a $12 shirt

Answer:

no

Step-by-step explanation:

24+35=59

59+12=71

so, it does not work

Answer:

y=2x-1

Step-by-step explanation:

1. 7-3/4-2=2 so the slope would be 2

2. substitute (4,7) in y=mx+b which gets b=-1

3. so this means that the equation is y=2x-1

Answer:

After 200 students, it would better to hire Band A

Step-by-step explanation:

350+ 1.25x = 600

1.25x = 250

x = 200

at 200 students the cost is the same for Band A and Band B

at 201 students Band A will be cheaper then Band B

Answer:

D

Step-by-step explanation:

f(x) =x(x-9)

X(x-9)=0

X2-9x=0

X2-9x+0=0

(X2-9X)

x(x-9)=0

X-9=0

X=9

X+0=0

X=0

Answer:

B

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

the highest student changed the distribution by a lot