If a = 3 and b = -1, find the value of the following expression.

Answer:

[tex](x^2+2)(x^2+10)[/tex]

Step-by-step explanation:

[tex]x^4+12x^2+20=(x^4+2x^2)+(10x^2+20)[/tex] separating middle term

[tex]x^2(x^2+2)+10(x^2+2)[/tex] factoring out common denom.

[tex](x^2+2)(x^2+10)[/tex] combining

Answer:

Step-by-step explanation:

If 0.7x represents the discounted price, then another way to show this is:

x+70%

[tex]\frac {a} {x} = \frac {70} {100}[/tex]

x-30%

x÷0.3

Answer:

try quizlet it would help!! :)

Step-by-step explanation:

if it does help your welcome

hope you find it

and wish u luck

Answer:

k=  5 over 3  =1.667

Step-by-step explanation:

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

                    (3)/(2)-((9)/(10)*k)=0

simplify 9/10

 3      9

 — -  (—— • k)  = 0  

 2     10

simplify 3/2

 3    9k

 — -  ——  = 0  

 2    10

   Find the Least Common Multiple

     The left denominator is :       2  

     The right denominator is :       10

Least Common Multiple:

     10

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 = 5

  Right_M = L.C.M / R_Deno = 1

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.      3 • 5

  ——————————————————  =   —————

        L.C.M              10  

  R. Mult. • R. Num.      9k

  ——————————————————  =   ——

        L.C.M             10

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:

3 • 5 - (9k)     15 - 9k

————————————  =  ———————

     10            10  

Pull out like factors :

  15 - 9k  =   -3 • (3k - 5)

-3 • (3k - 5)

 —————————————  = 0  

      10      

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:

 -3•(3k-5)

 ————————— • 10 = 0 • 10

    10    

Now, on the left hand side, the  10  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  -3  •  (3k-5)  = 0

Solve :    -3   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solve  :    3k-5 = 0  

Add  5  to both sides of the equation :  

                     3k = 5

Divide both sides of the equation by 3:

                    k = 5/3 = 1.667

one solution was found

k = 5/3 = 1.667

hope it helps sry its so long

Answer:

D

Step-by-step explanation:

a + c = r - d

a = r - d - c

Answer:

2 b 8 is your answer

Step-by-step explanation:

hope i helped GL<3

Answer:

Step-by-step explanation:

Given

Solving for y

Answer:

16

(: i did this before i remember it (im a Simp)

Answer:

An explicit formula for the shipping cost is  = . The store charges $55 when shipping 11 items.

Step-by-step explanation:

An online store charges when shipping 11 boxes would be; 55 dollars

An arithmetic sequence is a sequence of integers with their adjacent terms differing with one common difference.

An arithmetic sequence, therefore, is defined by two parameters, viz. the starting term, and the common difference.

Given that the online store charges $5 to ship one box and $10 to ship two boxes.

We have to write an explicit formula for an arithmetic sequence to represent the amount the online store pays to ship n boxes.

From what we know so far;

y = 5n

Now Using the explicit formula to determine how much the online store charges when shipping 11 items.

y = 5(11)

y = 55 dollars

Hence, A online store charges when shipping 11 boxes would be; 55 dollars

Learn more about arithmetic sequence here:

https://brainly.com/question/3702506

#SPJ2

Answer:

0.001, 20, 1001, 2100

Step-by-step explanation:

Answer:

y = -1/2x +6

Step-by-step explanation:

We can use the slope intercept form of a line

y = mx+b where m is the slope and b is the y intercept

y = -1/2x +b

Substitute the point into the equation

9 = -1/2 (-6) +b

9 = 3+b

9-3 =b

6 =b

y = -1/2x +6

Answer:

  4th choice (if we guessed the blurry letters properly)

Step-by-step explanation:

The reflection maps ...

  (x, y) ⇒ (x -y)

Then the rotation maps ...

  (x, -y) ⇒ (y, x)

That is, R(-1, 4) becomes R'(4, -1), apparently matching point S, the only point at (4, -1). We can't read the letters, but we know that you only need to know where R ends up in order to select the correct answer.

Answer:

£15

Step-by-step explanation:

Set up a proportion, where x is €20 in pounds

[tex]\frac{3}{4}[/tex] = [tex]\frac{x}{20}[/tex]

Cross multiply and solve for x:

4x = 60

x = 15

So, €20 is equal to £15

Answer:

n+16

Step-by-step explanation:

9+7+n

Combine Like Terms

=9+7+n

=(n)+(9+7)

=n+16

Answer:

16+n

Step-by-step explanation:

9 + 7 +n

16 + n

Answer:

5, the one with the variable.

is the coeficiant

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

The coefficient is always before the variable. It's always going to be a number.

Answer:

um... what.

WHAT'S THE QUESTION

bruuh

bruh

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

x is almost always the number in the parentheses. y is always the answer. Hope this helps!

Answer:

The y-intercept is the flat fee for the pizza - $5. The slope is the charge for each additional topping - $.50

Step-by-step explanation:

c=.5m+5

y=mx+b - slope intercept formula

In the slope-intercept formula, the 'b' is the y-intercept. We know that would be the flat fee because there is no variable attached to it.

In that formala, m is the slope and is attached to a variable, x. This problem uses the variable m instead of x, but we can see that the slope for .5m would be .5. Thus, that's the charge for the toppings. Hope that helps!

Answer:

Step-by-step explanation:

The consecutive integers are increasing by 1

x ← the smallest integer

x+1 ← the middle integer

x+1+1 = x+2   ← the largest integer

x + x+1 + x+2 = 120

   3x + 3 = 120

      ÷3        ÷3

      x + 1 = 40

         -1       -1

        x = 39

x+2 = 39 + 2 = 41

Answer:

the answer is £1.47

Step-by-step explanation:

on a calculator time's your number by 0.12 and that's how you found your answer

Answer:

Step-by-step explanation:

Shiredddddd

Answer:

no

Step-by-step explanation:

Answer:

Yes the table shows a probability distribution

The mean is [tex]E(X) = 1.636 [/tex]

The  standard deviation is   [tex]\sigma = 0.845 [/tex]

Step-by-step explanation:

From the question we are told that

The data given is

x 0 1 2 3

P(x) 0.087 0.344 0.415 0.154

Generally we can evaluate [tex]P(x) * x[/tex] as

[tex]P(x) * x[/tex] 0 (1 * 0.344 ) (2 * 0.415) (3 * 0.154 )

=> [tex]P(x) * x[/tex] 0 0.344 0.830 0.462

Generally we can evaluate [tex]P(x) * x^2 [/tex] as

[tex]P(x) * x^2 [/tex] 0 [tex ](1^2 * 0.344 )[/tex] [tex ](2^2 * 0.415)[/tex] [tex ](3^2 * 0.154 )[/tex]

=> [tex]P(x) * x^2 [/tex] 0 [tex] 0.344 [/tex] [tex ]1.66 [/tex] [tex]1.386[/tex]

Generally the mean is mathematically represented as

[tex]E(X) = \sum [x* P(x)][/tex]

[tex]E(X) = 0 + 0.344+ 0.830+0.462 [/tex]

[tex]E(X) = 1.636 [/tex]

Generally the standard deviation is mathematically represented as

[tex]\sigma = \sqrt{V(X)}[/tex]

Here [tex]V(X)[/tex] is the variance which is mathematically represented as

[tex]V(X) = [E(X^2) ]- [E(X)]^2[/tex]

Here

[tex]E(X^2) = \sum [x^2 * P(x)][/tex]

[tex]E(X) =0 +0.344+1.66+1.386 [/tex]

[tex]E(X) = 3.3900 [/tex]

So

[tex]V(X) = 3.3900 - [1.636]^2[/tex]

[tex]V(X) = 3.3900 - 2.6764[/tex]

[tex]V(X) = 0.7136[/tex]

So

[tex]\sigma = \sqrt{0.7136}[/tex]

[tex]\sigma = 0.845 [/tex]

Answer:

The answer would be QRTS.

Step-by-step explanation:

Answer:

93,500 or 9.35 x 10^4

Step-by-step explanation:

(8.5 x 10^3)(1.1 x 10^1)

8,500 x 11

8,000 x 10 = 80,000

8,000 x 1 = 8,000

500 x 10 = 5,000

500 x 1 = 500

93,500 or 9.35 x 10^4

Answer:

0.25 cents is the answer

Answer:   25 cents

Step-by-step explanation:

Answer: Yes it is

Step-by-step explanation:

60-30=30×40=70-80=-10

if the number of negatives are even they are always positive. if the number is odd of negatives. it always is negative. -- = + --- =-

✽ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ✽

➷ [tex]\boxed{-10}[/tex]

[tex]60+(-30)+40-80[/tex]

[tex]= 30 + 40 - 80[/tex]

[tex]= 70 - 80[/tex]

[tex]= -10[/tex]

✽

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ May ♡