Evaluate the function if f(x)=x²-2x+1. Find f(-1+√2)

Can someone help me please?​

Answers

Answer 1

Answer:

6 - 4[tex]\sqrt{2}[/tex]

Step-by-step explanation:

To evaluate, substitute x = - 1 + [tex]\sqrt{2}[/tex] into f(x)

f(- 1 + [tex]\sqrt{2}[/tex] )

= (- 1 + [tex]\sqrt{2}[/tex] )² - 2(- 1 + [tex]\sqrt{2}[/tex] ) + 1 ← expand squared factor using FOIL

= 1 - 2[tex]\sqrt{2}[/tex] + 2 + 2 - 2[tex]\sqrt{2}[/tex] + 1 ← collect like terms

= 6 - 4[tex]\sqrt{2}[/tex]


Related Questions

The process of eliminating a radical from the denominator of a radical expression is called

Answers

Answer:

rationalizing the denominator

Thank 0d0

Step-by-step explanation:

HURRY PLEASE!!!!
Identify the graph of y = In x + 1.
X
64
RETRY

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The Middle answer is the answer

PLEASE HELP

Use the formula √(x2−x1)2+(y2−y1)2 to find the distance between the points(8,2) and (3,8) to the nearest tenth please

Answers

Answer:

Step-by-step explanation:

[tex]d=\sqrt{(3-8)^2+(8-2)^2} =\sqrt{25+36 }=\sqrt{61} \approx 7.81[/tex]

Can someone help me plz

Answers

Answer: 10(x+7.5)=200

Step-by-step explanation:

The Quadratic Formula gives which roots for the equation 3x2 + 3x = 2?

Answers

Answer: x=x=-3+/- sqrt 33/6

Step-by-step explanation:

Solve the inequality: 5x + 7 < -23

Answers

Step-by-step explanation:

Given

5x + 7 < - 23

Subtracting 7 from both sides

5x + 7 - 7 < - 23 - 7

5x < - 30

Dividing both sides by 5

5x / 5 < - 30 / 5

x < - 6

Hope it will help :)

Answer: x = 14/5

Step-by-step explanation:

1. Add 7  to both sides.

5x=7 +7

5x=7+7

Simplify  7 +7  to  14

5x = 14

5x=14

Divide both sides by 5

x =14/5

x = 14/5

Hoped this help <3 !

Find the area of a triangle (A= ½ bh). Base= (-8x²) Height = (-12x)

Answers

Answer:

area = 48x³

Step-by-step explanation:

area = 1/2(-8x²)(-12x) = 48x³

Given the graph of a quadratic function, use the intercepts and another point on the graph to write the equation of the function in standard form.

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Answer:

-2x^2 +8

hope this helps ;)

please help it’s due today!!!

Answers

Answer:

1=x and 2=y

Step-by-step explanation:

do parallel lines have tha same slope​

Answers

Answer:

The slopes of parallel lines are equal.

Step-by-step explanation:

Two lines are parallel if their slopes are equal and they have different y-intercepts.

The slopes of parallel lines are equal

Angle 1 is an alternate exterior angle to

Answers

Answer:

Angle 7

Step-by-step explanation:

Angle one is an alternate exterior angle to angle 7.

[tex]n^{2} +3n-12=6[/tex]

Answers

Answer:

Step-by-step explanation:

n² + 3n - 18 = 0

n = [-3 ±√(3²-4(1)(-18)]/[2(1)] = [-3 ±√81]/2 = 3, -6

Help I’m not sure of the answer?

Answers

Answer:

C) 1/3^32

Step-by-step explanation:

2 * -4 = -8

-8 * 4 = -32

1/3^32

Hope this helped! Have a nice rest of ur day! Plz mark as brainliest!!! :D

-Lil G

.
Is (3, 6) a solution to this system of equations?
2x + 7y = 48
5x + 3y = 51
.

Answers

No (3,6) is the solution for the first equation only

Each marble bag sold contains 4 green marbles for every 3 blue marbles if a bag has 21 blue marbles how many green marbles does it contain

Answers

4/3 = x/21
So you can cross multiply and divide:
3x = 84
x = 28

Or you can say 3 times what equals 21? The answer is 7. Then multiply 4 times 7 to get the answer. Whichever makes more sense to you :)

Find an
expression which represents the sum of (2x + 9) and (6x + 6) in simplest
terms.

MARKED WITH A GOOD REVIEW OR BRAINLIEST:)

Answers

Answer:

Step-by-step explanation:

[tex](2x + 9) + (6x + 6)[/tex]

[tex](2x + 6x) + (9 + 6)[/tex]

[tex]8x + 15[/tex]

ill mark brainlist plss help

Answers

Answer:

Step-by-step explanation:

Height of model = 20 ft ⋅ (2 in)/(5 ft) = 8 in

Jasmine and 4 friends moved 23 pounds of dirt. Each friend moved the same amount of dirt. How much dirt did each friend move?​

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5.75 is the answer I just wanted to help but that like button

Which ratio best defines experimental probability

Answers

Answer:

The experimental probability of an event is defined as the ratio of the number of times the event occurs to the total number of trials performed.

Step-by-step explanation:

Answer:

The Experimental Probability of an experiment is defined as: Ratio of the number of times the event is occurring to the total number of trials of the experiment

Step-by-step explanation:

Juanita can complete 12 math problems in 40 minutes. How many problems can she complete in 60 minutes

Answers

Answer:

The answer is 18.

Step-by-step explanation:

Jonathan owns a food truck that sells tacos and burritos. He sells each taco for $3 and each burrito for $6.75. Jonathan must sell at least $550 worth of tacos and burritos each day. Write an inequality that could represent the possible values for the number of tacos sold, t, and the number of burritos sold, b, that would satisfy the constraint.​

Answers

Answer: 3t + 6.75b _> 550

Answer:

3b+6.75t>  550

Step-by-step explanation:

Hope this helps

What are the zeros of f?
A graph of f(x) = 6x2 - 11x + 3 is shown on the grid.
A 3
A
B
2 and 9
C
1 1/2 품
11
12
1
IX
6
1
2
3
4
5
-6 -5 -4 -3 -2 -1
D
and
1 2 3 4

Answers

Answer:

x= 1/3 , 3/2

step by step

that should be the right answer

i don’t know the answer

Answers

Answer:

C

Step-by-step explanation:

In order to be able to find the circumference in relation to radius, you have to use the formula C = 2πr

Hope this helped :)

Does this graph have any vertical asymptotes? If so, where?

Answers

Answer:

There are no vertical asympotes for this rational function.

Step-by-step explanation:

For rational functions, a vertical asymptote exists for every value of the independent variable such that function become undefined, that is, such that denominator is zero. Let be the following rational function:

[tex]C(p) = \frac{25000\cdot p}{100-p}[/tex], [tex]0\le p < 100[/tex]

There is a vertical asymptote for this case:

[tex]100-p = 0[/tex]

[tex]p = 100[/tex]

Which is out of the interval given to the rational function. Hence, we conclude that there are no vertical asympotes for this rational function.

A rectangle has area x3 + 3x2 - 18x in.2 and width x + 6 in. What is the length in inches?​

Answers

Answer:

HOPE THIS HELPS

Step-by-step explanation:

The area = length * Width.

We know the width = X+6 inches and Area = x^3+3x^2–18x.

This problem can be solved just by dividing the area by width and we get a quotient as X^2–3x.

So the length is x^2–3x inches.

The length of the rectangle is [tex]\rm x(x-3)[/tex].

Given

The area of the rectangle = [tex]\rm x^3+3x^2-18x[/tex] square inches

The width of the rectangle = x + 6 inches

Area of the rectangle

The area of the rectangle is equal to the product of length and width of the rectangle.

Let the length of the rectangle be L.

The area of the rectangle is given by;

[tex]\rm Area \ of \ the \ rectangle =Length \times Width\\\\[/tex]

Substitute all the values in the formula;

[tex]\rm Area \ of \ the \ rectangle =Length \times Width\\\\\rm x^3+3x^2-18x= L \times (x+6)\\\\L=\dfrac{ x^3+3x^2-18x}{x+6}\\\\L = \dfrac{ x(x+6)(x-3)}{x+6}\\\\ L = x (x-3)[/tex]

Hence, the length of the rectangle is [tex]\rm x(x-3)[/tex].

To know about rectangles click the link given below.

https://brainly.com/question/14383947

Write the equation in slope-intercept form: 5x - 2y = 12

Answers

Answer:

Step-by-step explanation:

Solving

5x + -2y = 12

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '2y' to each side of the equation.

5x + -2y + 2y = 12 + 2y

Combine like terms: -2y + 2y = 0

5x + 0 = 12 + 2y

5x = 12 + 2y

Divide each side by '5'.

x = 2.4 + 0.4y

Simplifying

x = 2.4 + 0.4y

martha can paint a room in 8 hours. jamie can paint the same room in 4 hours. how long to the nearest tenth of an hour will it take them to paint the room together

Answers

Answer:

in 1 hr martha finishes 1/8th of the room

in 1hr jaime finishes 1/4th of the room

combined in 1hr they can finish (1/8 + 1/4) = 3/8th of the room.

for painting the whole room both of them together it takes the 8/3 hrs = 2.67hr

A 200g packet of Oreos costs $3, how much would a 50g packet cost?
HELP MY EXAM-

Answers

Answer:

0.75

Step-by-step explanation:

200g-3$

50g-x

200x=3×50

x= 3.50/200

x= 0.75

In 2010, the price of a laser printer was $1599. In 2018, the price of the same type of printer had dropped to $579. Find the percent of decrease. Round to the nearest percent.

Answers

Answer:

nearest percentage=64%

Step-by-step explanation:

math

Simplify.
(-2)^4(-2)

Answers

Answer:

−32

Step-by-step explanation:

(−2)^4(−2)

=(16)(−2)

=−32

Answer:

The answer is -32

Step-by-step explanation:

I just did it.

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