Consider the function f given by f(n) = 4n-9.
Evaluate the value
f(8) = ???

Answers

Answer 1

Answer:

i am so confused 12345

Step-by-step explanation:


Related Questions

can anyone solve this problem?​

Answers

Answer:

[tex] \sqrt{2 + \sqrt{2 + \sqrt{81 + 2 \sqrt{1568} } } } \\ = \sqrt{2 + \sqrt{2 + \sqrt{81 + 2 \times 28 \sqrt{2} } } } \\ = \sqrt{2 + \sqrt{2 + \sqrt{81 + 56 \sqrt{2} } } } \\ = \sqrt{2 + \sqrt{2 + \sqrt{81 + 79.2} } } \\ = \sqrt{2 + \sqrt{2 + \sqrt{160.2} } } \\ = \sqrt{2 + \sqrt{2 + 4 \sqrt{10} } } \\ = \sqrt{2 + \sqrt{2} \sqrt{1 + \sqrt{2} \sqrt{10} } } \\ = \sqrt{2 + \sqrt{2} \sqrt{1 + \sqrt{20} } } \\ = \sqrt{2 + \sqrt{2} \sqrt{1 + 2 \sqrt{5} } } \\ = \sqrt{2 + \sqrt{2} \times \sqrt{5.5} } \\ = \sqrt{2 + \sqrt{11} } \\ = \sqrt{2 + 3.3} \\ = \sqrt{5.3} = 2.3[/tex]

[tex]thank \: you[/tex]

Answer:

1 + √2

Step-by-step explanation:

Start with the inner root:

81 + 2√1568 = 49 + 2*28√2 + 32 = 7² + 2*7*4√2 + (4√2)² = (7 + 4√2)²

Move to next one:

2 + 7 + 4√2 = 1 + 2*2√2 + 8 = 1² + 2*2√2 + (2√2)² =  (1 + 2√2)²

The last one:

2 + 1 + 2√2 = 1 + 2√2 + 2 = 1² + 2*1*√2 + (√2)² = (1 + √2)²

The root of the last one is:

1 + √2

What is 8y squared+7y+4-3(2y squared-5y-8)?

Answers

Answer:  2 • (y2 + 11y + 14)

Step-by-step explanation:

Changes made to your input should not affect the solution:

(1): "y2"   was replaced by   "y^2".  1 more similar replacement(s).

STEP

1

:

Equation at the end of step 1

 (((8•(y2))+7y)+4)-(3•((2y2-5y)-8))

STEP

2

:

Trying to factor by splitting the middle term

2.1     Factoring  2y2-5y-8  

The first term is,  2y2  its coefficient is  2 .

The middle term is,  -5y  its coefficient is  -5 .

The last term, "the constant", is  -8  

Step-1 : Multiply the coefficient of the first term by the constant   2 • -8 = -16  

Step-2 : Find two factors of  -16  whose sum equals the coefficient of the middle term, which is   -5 .

     -16    +    1    =    -15  

     -8    +    2    =    -6  

     -4    +    4    =    0  

     -2    +    8    =    6  

     -1    +    16    =    15  

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Equation at the end of step

2

:

 (((8•(y2))+7y)+4)-3•(2y2-5y-8)

STEP  

3

:

Equation at the end of step

3

:

 ((23y2 +  7y) +  4) -  3 • (2y2 - 5y - 8)

STEP

4

:

STEP

5

:

Pulling out like terms

5.1     Pull out like factors :

  2y2 + 22y + 28  =   2 • (y2 + 11y + 14)  

Trying to factor by splitting the middle term

5.2     Factoring  y2 + 11y + 14  

The first term is,  y2  its coefficient is  1 .

The middle term is,  +11y  its coefficient is  11 .

The last term, "the constant", is  +14  

Step-1 : Multiply the coefficient of the first term by the constant   1 • 14 = 14  

Step-2 : Find two factors of  14  whose sum equals the coefficient of the middle term, which is   11 .

     -14    +    -1    =    -15  

     -7    +    -2    =    -9  

     -2    +    -7    =    -9  

     -1    +    -14    =    -15  

     1    +    14    =    15  

     2    +    7    =    9  

     7    +    2    =    9  

     14    +    1    =    15  

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

y-3z for pre algebra

Answers

Answer:

please I don't understand the questions

Answer:

I cannot be simplified nor solved

Step-by-step explanation:

Yeet

Frito lay mix variety in pack 28 bags for 9.88 cost per bag

Answers

Answer:

Each bag costs 0.35 cents

Step-by-step explanation:

divide 9.88 by 28 and that gives you the total for each bag of chips

help me pls... thxxx...

Answers

Hello :D

12 + 9 = 21

21 + 12 = 33

π x 9 = 9π/2= 4.5π

33 + 4.5π = 47.13

Answer = 47.13

jose runs 6 miles per hour. Which expression can be written to represent the number of miles Jose runs in y minutes?

Answers

Answer:

10 minutes per mile

Step-by-step explanation:

theres no answer soooo i dont think this one is right

(-9) 4 as a exponent​

Answers

Answer:

[tex]9^4[/tex] = [tex]6561[/tex]

Write the slope-intercept form of the given line. Include your work in your final answer.

Answers

Step 1: Find the slope:
To find the slope, find two points on the graph and count the “rise over run” between the points.
Two points here are (0,-1) and (2,1). To get from (0,-1) to the other point, you need to go “up 2” and then “right 2”. This means your slope is 2/2 or 1.

Step 2: Find the y-intercept:
We can see the y-intercept is (0,-1) on the graph. We’ll use the “-1” from that point for our equation.

Step 3: Put it all together:
The slope-intercept form is y=mx+b, where m is the slope and b is from the y-intercept.
Putting Step 1 and Step 2 into play, we have:
y = x - 1

Note: since m=1, we don’t need to write y = 1x -1. That 1 on the 1x is unnecessary.

1. A cube measures 4cm on each side and has a mass of 12 grams. What is the
density of the cube?

Answers

Answer:  0.1875 grams per cm^3

Explanation:

First we need to find the volume of the cube

volume = length*width*height = 4*4*4 = 64 cubic cm

Then we'll divide the mass over this volume to get the density

density = mass/volume

density = (12 grams)/(64 cm^3)

density = (12/64) grams per cm^3

density = 0.1875 grams per cm^3

The notation cm^3 is another way of saying "cubic centimeter" as shorthand.

What is the slope of the equation Y= 5/4x - 7/4?
A. -7
B. -7/4
C. 5/4
D. 5​

Answers

Answer:

D. Slope is 5/4

Step-by-step explanation:

By relation with the general equation of a line:

[tex]{ \boxed{y = mx + c}}[/tex]

m » slope

equation given:

[tex]y = \frac{5}{4} x - \frac{7}{4} [/tex]

therefore, slope is 5/4

Answer:

(c) option is correct

Step-by-step explanation:

answer is 5/4

$28.60, 6.5% tax, 15% tip

Answers

$35.03

first multiply 28.60 times .065 for tax, then add that number to 28.60.
you will get 30.459

use this number and multiply it by .15 for tip, then add that number to 30.459.
you will get 35.02785

round off to the hundredths because that’s how money is counted.
final answer $35.03

Write the explicit rule of the arithmetic sequence that has a first term of 3 and a fourth term of 18

Answers

Answer:

[tex]a_{n}[/tex] = 5n - 2

Step-by-step explanation:

The nth term of an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₄ = 18 , then

a₁ + 3d = 18 , that is

3 + 3d = 18 ( subtract 3 from both sides )

3d = 15 (divide both sides by 3 )

d = 5

Then

[tex]a_{n}[/tex] = 3 + 5(n - 1) = 3 + 5n - 5 = 5n - 2 ← explicit rule

Para elaborar 1 kg de masa para pastel se emplean 2 de kilogramo de harina, ¿cuántos kilogramos 5
de harina se usan para hacer 3 1 kilogramos de masa para pastel? 2
A) 8 3/4
B) 3 9/10
C) 1 2/5
D) 1 2/

Answers

El kilogramo de harina necesario para hacer 3 1/2 kg de mantequilla para pasteles es 1 2/5 kg

1 kg de mantequilla de bizcocho = 2/5 kg de harina

Deje que la cantidad de kg de harina necesaria para hacer 3 1/2 kg de mantequilla de torta = b

Expresando Matemáticamente:

1 kg = 2/5

1 kg = 2/53 1/2 kg = b

1 = 2/5

3 1/2 = b

Multiplicar en cruz:

b = 3,5 × 0,4

b = 1,4

Por lo tanto, el kilogramo de harina requerido para hacer 3 1/2 kg de mantequilla para pasteles es 1 2/5 kg

Más información: https://brainly.com/question/18112348

7. Olivia purchases gifts for her mom and
grandma for Mother's Day. The first is a pair of
sunglasses for $16.35 and the second is a
bracelet. Her total is $39.75. How much did she
spend on the bracelet?
8. Alan
costo
owes
the me
Variable:
Equation:
Solution:
Samuel

Answers

Answer:

7: $26.40

Step-by-step explanation:

I'm only going to give you the direct answer, and number 8 isnt clear.

evaluate the expression when a=5.
a² - 17​

Answers

Answer:

8

Step-by-step explanation:

[tex]5^{2}[/tex]−17

=25−17

=8

This one if to hard for me

Answers

Answer:

x=0 , x = 1/2

Step-by-step explanation:

(4x-1)=1 —> 4x-1=1—> 4x=1+1—> 4x=2 —> x=2/4 —> x= 1/2

-(4x-1)=1—>-4x+1=1—> 4x= 1-1 —> x=0

Hello there!

We are given the equation:

[tex] \displaystyle \large{ |4x - 1| = 1}[/tex]

Definition/Property

[tex] \displaystyle \large{ |a| = \sqrt{ {a}^{2} } } \\ \displaystyle \large{ |a| = b \longrightarrow a = \pm b} \\ \displaystyle \large{ |a| = \begin{cases} a \: \: (x \geqslant 0) \\ - a \: \: (a < 0) \end{cases}}[/tex]

First, cancel the absolute value sign and write plus-minus beside 1.

[tex] \displaystyle \large{ |4x - 1| = 1} \\ \displaystyle \large{ 4x - 1 = \pm 1} \\ [/tex]

Break in two cases.

[tex] \displaystyle \large{ 4x - 1 = \begin{cases} 1 \\ - 1 \end{cases}} \\ \displaystyle \large{ 4x = \begin{cases} 1 + 1 \\ - 1 + 1 \end{cases}} \\ \displaystyle \large{ 4x = \begin{cases} 2 \\ 0 \end{cases}} \\ \displaystyle \large{ x = \begin{cases} \frac{2}{4} \\ \frac{0}{4} \end{cases}}[/tex]

Therefore, x = 0 or 1/2

Let me know if you have any questions!

Topic: Absolute Value Function - Equations

find the number by which 5400 must be multiplied so that the product is a perfect cube.

Also find the cube root of the number obtained.

( Show workings )​

Answers

Answer:

Step-by-step explanation:

The easiest way (or the most reliable way) is to factor the given number into primes

5400 = 2 * 2 * 2 * 3 * 3 * 3 * 5 * 5

I cheated a little bit. 54 = 2 * 27 which is 2 * 3 * 3 * 3

100 = 2 * 2 * 5 *5

Combine the two parts and you get the factors I gave you.

Now you have to have the numbers go into groups of three. The only adjustment needed is 5 * 5 and one more 5

So the perfect cube is 5400 * 5 = 27000

Does that work? It should

27000^(1/3) = 3 * 10 = 30

So the cube root of 27000 is 30.

Can someone help me with (Geometry)

Answers

Step-by-step explanation:

I think the fig.. will helps you a lot...

Write the equation of the line in fully simplified slope-intercept form.

Answers

Slope intercept form: y=mx+b
Slope for this graph: -10/12=-5/6
Simplified slope intercept form: y=-5/6x-2

Use the information to
answer the question.
A performing arts center can sell 720 tickets for its main theater. The number of tickets the center can sell increases by 75% when the center
uses its secondary theater. All tickets sell for $45.50.

How much money does the performing arts center earn in ticket sales for a sold-out event in both the main and secondary theaters?

Enter
the answer in the box.
$???
ASAP

Answers

Answer:

10

Step-by-step explanation:

The mass of an object is measured to be 5.55g. The actual weight of the object is 6.00g. What is the percent error?

Answers

Answer:

. The actual mass of the object was 9.98 X 10-3 g.

Step-by-step explanation:

yeah

The following table shows a proportional relationship between a and b.

a b

8 3

24 9

40 15

Write an equation to describe the relationship between a and b.

Answers

A= 2 2/3B
Brainliest?

Julio is playing a trivia game. On his first turn, he lost 100 points. On his second turn he lost 75 points. On his third turn, he lost 85 points. Write a sum of three negative integers that models the change to Julio's score after his first three turns.

Answers

Answer:

Step-by-step explanation:

The change in his total score is the sum of the losses -100 + (- 75 ) +(- 85 ) = - (100 + 75 + 85 ) = - 260

calculate the size of unknown angles​

Answers

Hi! I'm happy to help!

We know that 2y=150, so we can divide both sides by 2 to find the angle of y

2y=150°

÷2  ÷2

y=75°

So, y=75°.

I hope this was helpful, keep learning! :D

In which of the following expressions is the coefficient of term "x" 1?

2x^2+x−9

3x^2−x−5

2x^2−3x+1

x^2+2x+7

Answers

Answer:

the answer of the following question is d

Perimeter of a rectangle

Solve for w: p=2i+w

Answers

Answer:

The perimeter of a square field is given by the equation P = 2l + 2w, where P represents the perimeter, l represents the length of the field, and w represents the width of the field.

help please!! correct answer gets brainliest :) (show work)

Answers

Answer:

7x = y - 7

Step-by-step explanation:

→ Replace the f(x) with a y

[tex]y=\frac{x-7}{x}[/tex]

→ Make x the subject by first multiplying both sides by x

[tex]xy=x-7[/tex]

→ Now rearrange to get all x on one side

[tex]x-xy = 7[/tex]

→ Factorise

[tex]x(1-y)=7[/tex]

→ Divide both sides by 1-y

[tex]\frac{7}{1-y}[/tex]

En una alcancía hay 80 monedas y solo hay de $50 y de $100. Si en total hay $6.500,¿cuántas monedas de $50 hay? ayudaaa porfavor

Answers

Answer:

127

Step-by-step explanation:

espero haber ayudado

I WILL MARK BRAINLIST help asap 7grade math!!!!

Answers

-4/5 and -1/2
Taking the LCM of the 2 fractions we get the common denominator 10

-8/10 and - 5/10

Now we can see the second fraction (-5/10) is bigger
Thus the friend is wrong

help with number 4!!!!!!

Answers

Answer:

he have to travel 12 cm/km

Step-by-step explanation:

lets find x by transposing

3x = 2x + 2        (as M is the midpoint)

3x - 2x = 2

x = 2

now put 2 instead of x

3x + 2x +2 =  (distance from friends home to house)

3 (2) + 2 (2) +2

6 + 4 + 2

10 + 2

= 12

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