1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stira [4]
2 years ago
15

Can someone please help and explain its due in a littleee

Mathematics
1 answer:
jek_recluse [69]2 years ago
4 0

f(x) =  {x}^{2}  - 3x + 2

<h2>••••••••••••••••••••••••••••••••••••••••</h2>

put x = (-1)

f( - 1) =  {( - 1)}^{2}  - 3 \times ( - 1) + 2  \\  \\   1  + 3 + 2  \\  \\   6.

<h2>••••••••••••••••••••••••••••••••••••••••</h2>

put x = (z)

f(z) =  {z}^{2}  - 3 \times z + 2  \\  \\  {z}^{2}  - 3z + 2  \\  \\  {z}^{2} - 2z - z + 2 \\  \\ z(z - 2) - 1(z - 2) \\  \\ (z - 1)( z -2 ) \\  \\ (z - 1) = 0  \:  \: , \:  \: (z - 2) = 0\\  \\ z =  1 \:,  \: 2

<h2>••••••••••••••••••••••••••••••••••••••••</h2>

put x = (x+1)

f(x + 1)  = {x}^{2}  -  3x + 2 \\  \\  {(x + 1)}^{2}  - 3 (x + 1) + 2 \\  \\  {x}^{2}  + 1 + 2x - 3x - 3 + 2 \\  \\  {x}^{2}  - x \\  \\ x(x - 1) \\  \\ x(x - 1) = 0   \\  \\  x - 1 =  \frac{0}{x}  \\  \\ x - 1 = 0 \\  \\ x = 1.

<h2>•••••••••••••••••••••••••••••••••</h2>

put x = (√2 + 1 )

f( \sqrt{2}  + 1) =  {x}^{2}  - 3x + 2 \\  \\  {( \sqrt{2} + 1) }^{2}  - 3( \sqrt{2}  + 1) + 2 \\  \\ 2 + 1 +  2\sqrt{2}  - 3 \sqrt{2}  - 3 + 2 \\  \\ 3 - 1 \sqrt{2}  - 1 \\  \\ 2 -  \sqrt{2}  \\   \\  2 - 1.4 (optional \:  \:  \: steps)\\  \\ 0.6 \:  \:

You might be interested in
A rectangle has a length that is 7 inches less that twice it's width. The area of the rectangle is 72 square inches. Write an eq
Nitella [24]

Answer: 2x^2-7x=72 , where  x= width of the rectangle ( in inches).

Step-by-step explanation:

Let x= width of the rectangle ( in inches).

Then its length =  2x-7 ( in inches).

Area of rectangle = Length × width

= (2x-7) × (x)

= 2x × x -7 ×x

= 2x²-7x

The area of the rectangle is 72 square inches.

\Rightarrow\ 2x^2-7x=72

Hence, the equation that represents the given situation :

2x^2-7x=72

7 0
3 years ago
What is 20.9/9.31?<br> No need to explain. Just need the answer
Furkat [3]
2.24489795918
Is the answer
3 0
4 years ago
Read 2 more answers
Who is good at math??
EleoNora [17]
B = 26in, c = 40in
a^2 = 26^2 + 40^2
= 2276 (square root it)
a = 2root569 // 47.7in
8 0
3 years ago
A sail boat has a sail in the shape of an isosceles triangle. the base of the triangle is 16 feet in length. the height of the s
lapo4ka [179]

Answer:

160 feet^2

Step-by-step explanation:

base x high x 1/2

hope i'm right

3 0
3 years ago
Read 2 more answers
Due today! PLEASE help! Find the value of x. A. 15 B. 28 C. 20 D. 40
marta [7]

Answer:

A- 15

Step-by-step explanation:

I think option no a is answer

6 0
3 years ago
Other questions:
  • the cost of admission to a history museum is 3.25 per person over the age of 3 kids 3 and under get in for free if the total coa
    6·1 answer
  • What is the answer for T/6-14=-20 ?
    10·1 answer
  • To the nearest​ millimeter, a cell phone is 135 mm long and 66 mm wide. What is the ratio of the width to the​ length?
    6·1 answer
  • The height of a tree trunk is 20 meters and the base diameter is 0.5 meter.
    6·1 answer
  • What equation is this graphed figure
    13·1 answer
  • Someone Please help me!!
    6·1 answer
  • Can someone explain how to get the answer for the following question ?
    12·1 answer
  • Ashanti went to the store with $30 and spent 75% of the money what fraction of the money did she spent
    12·1 answer
  • Which of these shapes have an area
    11·2 answers
  • How do I get to -19 from -6
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!