If ƒ( x )= 2 x 2 + 3, then ƒ( x - 1)= 2 x 2 + 4 x + 5.

True or False

Answers

Answer 1

The value of function f(x - 1) = 2x² + 4x + 5 is not true.

Here,

The function is given as;

f (x) = 2x² + 3

And, f(x - 1) = 2x² + 4x + 5

We have to check the value of f(x - 1) is true or not.

What is substitution method?

To find the value of any one of the variables from one equation in terms of the other variable is called the substitution method.

Now,

The function is;

f (x) = 2x² + 3

To determine the value of f (x - 1), we can put (x -1) in place of x as;

f (x) = 2x² + 3

f (x - 1) = 2(x - 1)² + 3

f (x - 1) = 2(x² + 1 - 2x) + 3

f (x - 1) = 2x² + 2 - 4x + 3

f (x - 1) = 2x² - 4x + 5

Hence, The value of function f(x - 1) = 2x² + 4x + 5 is not true.

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Related Questions

pls help! will give brainliest

Answers

1= 4
2= I THINK c+3
3=18

Solve the following problems. Remember, it’s easiest to solve the questions in the parentheses first. a. 4 + (5+12) b. (3 + 6) + 17 c. (3 + 4) + (5 + 6) d. 9 + (11 + 7) + 10

Answers

a. 21, b. 26, c. 18, d. 28

Answer:  The required answers are :

(a) 21,   (b) 26,   (c) 18   and   (d) 37.

Step-by-step explanation:  We are given to solve the following problems with parentheses solved first.

(a). The given problem is

[tex]4+(5+12).[/tex]

We have

[tex]4+(5+12)=4+17=21.[/tex]

(b) The given problem is

[tex](3+6)+17.[/tex]

We have

[tex](3+6)+17=9+17=26.[/tex]

(c) The given problem is

[tex]4+(5+12).[/tex]

We have

[tex](3+4)+(5+6)=7+11=18.[/tex]

(d) The given problem is

[tex]9+(11+7)+10.[/tex]

We have

[tex]9+(11+7)+10=9+18+10=9+28=37.[/tex]  

Thus, the required answers are :

(a) 21,   (b) 26,   (c) 18   and   (d) 37.

ANSWER FAST PLEASE Which is a reasonable first step that can be used to solve the equation 4x+3(x+2)=5(2x-3)

Answers

Hey there!!

Given equation :

... 4x +3(x+2) = 5(2x-3)

Using the distributive property :

... 4x + 3(x) + 3 (2) = 5(2x) + 5(-3)

... 4x + 3x + 6 = 10x - 15

Combining the like terms :

... 7x + 6 = 10x - 15

Subtracting 7x on both sides :

... 6 = 3x - 15

Adding 15 on both sides :

... 21 = 3x

Dividing by 3 on both sides :

... x = 7

This is the solved equation. The first step we have done to solve the equation was using the distributive property.

Hope my answer helps!

Lori purchases a new set of watercolor paints and some canvases to create art for her next exhibit. The watercolor paint set costs $15 and the canvases are $24.50 each.

If Lori buys 6 canvases, what is the total amount of money she spends for her next exhibit?

A.
$237.00
B.
$162.00
C.
$211.00
D.
$147.00

Answers

Answer:

If you buy the paint set and the 6 canvases its B if you just buy the cancases itd D

Step-by-step explanation:


Answer:

Total Amount Spent = $162.00

Step-by-step explanation:

Given

Items: Watercolor paints and Canvases

Cost of watercolor paint = $15

Cost of each canvases= $24.50

Quantity of Watercolor paint = 1

Quantity of each canvases = 6

Required

Total Amount Spent

To get the total amount spent, we first calculate the amount spent on each item.

Amount Spent on Watercolor

Cost of watercolor paint = $15

Quantity of Watercolor paint = 1

Amount = Cost * Quantity

Amount = $15 * 1

Amount = $15

Amount Spent on canvases

Cost of each canvases = $24.50

Quantity of canvases = 6

Amount = Cost * Quantity

Amount = $24.50 * 6

Amount = $147.00

Total Amount Spent = Amount Spent on Water Color + Amount Spent on Canvases

Total Amount Spent = $15 + $147.00

Total Amount Spent = $162.00

63.90 three friends spent on dinner. They want to split the dinner check equally.

Answers

Hello  AskMeBosh

Since we know that there are 3 friends, and 63.90 dollars would be sent, we would divide by 3

63.90/3

= 21.3

Their check for each will be 21.3 dollars

:)

The split of the dinner each has to spend 21.30.

Concept:Here the fundamental concept to be use is of division.To split up bills equally, the total bill amount has to be divided by the no of people.

How to solve the given question?  The total bill amount = 63.90No of people to split the bill = 3∴ The amount to be spent by each person = [tex]\frac{Total \ Amount}{No \ of \ people} = \frac{63.90}{3} = 21.30[/tex]

Thus, each person has to pay 21.30.

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What’s the product of -5(-1.2)

Answers

-5(-1.2) = 6

Hope this helps you

-AaronWiseIsBae

A cab service charges a flat rate of $3.25 and an additional $0.75 per mile. Ashley has $10. What is the maximum number of miles Ashley can travel?

Answers

After paying for the flat rate, she has 10-3.25=6.75 left.

With 6.75 she can go for 6.75/0.75 = 9 miles

Note: solving by reasoning is often faster than mechanically forming an equation.

Final answer:

To find the maximum number of miles Ashley can travel with $10, subtract the flat rate of $3.25 from $10, leaving $6.75, which is then divided by the per mile rate of $0.75 to result in 9 miles.

Explanation:

To calculate the maximum number of miles Ashley can travel with $10 using the cab service that charges a flat rate plus a per mile fee, you first subtract the flat rate from the total amount Ashley has. Then, divide the remaining amount by the per mile charge to find the number of miles she can afford.

Step-by-step Calculation

Subtract the flat rate ($3.25) from Ashley's total amount ($10): $10 - $3.25 = $6.75.

freddy drew a plan for a rectangular piece of material that he will use for a blanket. three of the vertices are (-2.6, -3.4) , (-2.6, 1.3), and (1.6, 1.3) what are the coordinates of the fourth vertx?

Answers

final answer (1.6, -3.4)
your welcome
Final answer:

The coordinates of the fourth vertex of the rectangular blanket, given the vertices (-2.6, -3.4), (-2.6, 1.3), and (1.6, 1.3), are (1.6, -3.4).

Explanation:

From the given coordinates of the three vertices of the rectangle, we can find that the width of the rectangle is calculated from the difference in the x-coordinates of (-2.6, 1.3) and (1.6, 1.3), which is 4.2 units (1.6 - (-2.6)). Similarly, the length of the rectangle is calculated from the difference in the y-coordinates of (-2.6, -3.4) and (-2.6, 1.3), which is 4.7 units (1.3 - (-3.4)).

To find the fourth vertex, we take the x-coordinate of the bottom left vertex (-2.6, -3.4) and add the width (4.2) to get 1.6. We then take the y-coordinate of the bottom left vertex (-2.6, -3.4) and keep it the same for the fourth vertex. So the coordinates of the fourth vertex are (1.6, -3.4).

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A jewelry sales person earns a base salary of $200 a week plus 25% of all of her sales over $300.

This situation could be represented by the expression:
200 + .25( x - 300)


Which of the following describes the meaning of the variable X for this situation?

A. The total amount of sales after the first $300

B. The total amount of salary earned.

C. The amount of commission earned.

D. The total amount of sales

Answers

Answer:

D. The total amount of sales

Step-by-step explanation:

We have been given that a jewelry sales person earns a base salary of $200 a week plus 25% of all of her sales over $300.

This situation has been represented using the expression 200 + .25( x - 300)

Here 200 is the base salary. 0.25 corresponds to 25%. The factor (x-300) corresponds to the amount of sales over 300 dollars. This implies that x represents the total sales.

Therefore, x represents the total amount of sales. Hence, option (D) is the correct answer.

A regular pentagon shares a common center with a regular hexagon. If `bar(LM)` || `bar(AB)`, across how many lines of reflection can the combined figure be reflected to map onto itself?

A. 6
B. 3
C. 1
D. 0

Answers

our lines of symmetry is made limited by the presence of the pentagon. If we slice the pentagon into two, the only line of symmetry we could create would be the line intersecting O and the median of LM. Other lines would not create a symmetrical half.

Therefore the line of reflection is only 1.

questioned answered by

(jacemorris04)



Please need help on both of these please

Answers

6.B Im not sure about this one

7. D

Answer:

3) C)

7) D)

Explanation for question 2)

Step 1:

4^3 = 64

4^4 = 256

4^9 = 262144

Step 2:

64 * 256 = 16,384

16,384/262,144 = 0.0625

Step 3:

0.0625 as a fraction, 1/16

-----------------------------------------------------

Now, we see there is no option as, 1/16

But, however there is 1/4^2 = 1/16

Because, 4^2 = 16

Therefore, 1/16


Explanation for answer 7)

It's pretty simple, your just looking for an answer that also combines like terms.


Hope this helps :-)

P.S: Sorry I took so long

Bisector, Find the value of X

Answers

bisector cuts it into two equal sections.  

2x + y = 14 + y

      2x = 14        subtracted y from both sides

        x  = 7         divided both sides by 2

Answer: 7


Miranda wants to give her 14-years old daughter $20,000 when she turns 18. How much does she need to put in the bank now if the interest rate is 10 percent per year?

Answers

Answer:

Miranda has to put $13,661 in the bank.

Step-by-step explanation:

Miranda wants to give her 14-years old daughter $20,000 when she turns 18

Miranda has 4 years to make $20,000

Rate of interest = 10% per year

Let initial deposit be $x

Final amount (A) = $20,000

Time (t) = 4 years

Rate (r) = 0.10

Formula:

[tex]A=P(1+r)^n[/tex]

Substitute the values into formula

[tex]20000\geq x(1+0.1)^4[/tex]

Now we solve for x

[tex]x\geq \dfrac{20000}{1.1^4}=13660.27\approx 13661[/tex]

Hence, Miranda has to put $13,661 in the bank.

Nestor works at a garden center where he pots plants. It take's him 2 1/2 hours to pot 15 plants.
Part A:how many plants can Nestor pot in 1 hour?

Answers

Answer:

6 per hour

Step-by-step explanation:you would divide 15 by 2 and 1/2

Answer:

Part A:

The number of plants Nestor will pot in 1 hour is:

                     6 plants.

Part B:

The number of plants that he will be able to pot in 3 1/2 hour is:

                        21 plants.

Step-by-step explanation:

Part A:

It is given that:

Nestor takes 2 1/2 hours to pot 15 plants.

i.e.

It takes him 5/2 hours to pot 15 plants.

Hence, In 1 hour he will pot:

[tex]\dfrac{15}{\dfrac{5}{2}}\ \text{plants}\\\\=\dfrac{15\times 2}{5}\ \text{plants}\\\\=6\ \text{plants}[/tex]

Part B:

Also, if he continues to work at the same rate then the number of plants he will pot in 3 1/2 hour is:

( We know that:

[tex]3\dfrac{1}{2}=\dfrac{3\times 2+1}{2}\\\\i.e.\\\\3\dfrac{1}{2}=\dfrac{7}{2}\ \text{hour}[/tex] )

Hence, the number of plants that will be potted in 7/2 hours is:

[tex]=6\times \dfrac{7}{2}\\\\=21\ \text{plants}[/tex]

Matt has 16 CDs. How many ways can he arrange the CDs so they are in equal rows?

Answers

Matt could do one of the following arrangements;

2 rows of 8 CDs

4 rows of 4 CDs

Matt has 16 CDs.

Arrangement of the CD's so that they can have equal rows, we would have to find the factors of 16.

Factors of 16 are: 1, 2, 4, 8 and 16

This means:

       8 x 2 = 16

      4 x 4 = 16

Hence,

1st Way: Matt can arrange his CDs in 8 rows and he will have 2 CDs in each row.

2nd Way: Matt can arrange his CDs in 4 rows and he will have 4 CDs in each row.

Therefore, the number of ways can he arrange the CDs so they are in equal rows is 2 ways

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Tran wants to buy a drone that is 10% off the original price is $113.03 what is the sale price?

Answers

10% of 113.03 is 11.30300

just subtract that from 113.03

which is 101.727 or round it up to 101.73

Does anyone know? Help is appreciated!

Answers

The slope is the change in Y over the change in X


Using the 2 points shown on the line (-4,3) and (3,1)

The change in Y is 1-3 = -2

The change in X is 3 - (-4) = 3+4 = 7


The slope = -2/7


The answer is B.

On the dance floor half a dozen couples were throwing themselves around with the reckless abandon of a night watchman with arthritis.

Answers

Is there more to this question? The only math question I can think of that would go with this is for us to tell what a half dozen is equal to. If that is the case, the answer is 6.

match the number with its opposite ONE NUMBER FOR EACH ONE. 3.2 A 2.3 -2.3 B -3.2. -1.5 C 1.5 5.1 D 5.1

Answers

3.2=-3.2

2.3=-2.3

1.5=-1.5

5.1=-5.1

Solve for x: 3-(2x-5) is less than -4(x+2)

Answers

x< 0.7 if i'm correct

Which describes changing an angle of rotation

Answers

THE ANSWER IS Angle of rotation is changed if an image is moved about a central point.


ryan earns $5 for each small dog he walks and $8 for each latge dog he walks. today he walked 8 dogs and made a total of $55. how many small dogs did ryan walk ?

Answers

If we divide 55 (the total amount of money he made) by 5 (price to walk one small dog), we get 11. Meaning that the maximum amount of small dogs he could possibly walk and receive that amount of money is 11. However, he only walked 8 dogs. Therefore Ryan would have needed to walk a specific amount of large dogs in order to earn 55 dollars in total.

After doing some process of elimination, I reached this conclusion:

3 small dogs = $15

5 large dogs = $40

The combination of the two would equal $55.

Therefore, the answer would be 3 small dogs.

what is the greatest 0.893 0.98 0.04 0.321 pls help its urgent

Answers

.98 is the greatest because it is closest to 1 out of the decimals

Jim wants to purchase a used car. The price is $12,000 cash or $2,500 down and 24 monthly payments of $450.00. Jim decided to finance the boat.

Answers

Answer

The amount that will be financed: $9500

The total amount of the monthly payments: $10,800

The amount of the finance charge: $1,300

Explanation

Remember that the down payment is the initial amount you paid to reduce the amount you finance.

Given that, the amount that Jim will finance will be the price of the bath in cash minus the down payment:

Amount that will be financed = $12,000 - $2,500 = $9500

Next, to find the total amount of the monthly payments, we just need to multiply the monthly payment by the total number of monthly payments:

Total amount of the monthly payments = $450.00*24 = $10,800

Finally, to find the financial amount, we just need to subtract the financed amount from the total amount of the monthly payments:

Amount of the finance charge = $10,800 - $9500 = $1,300

ABC is an isosceles right triangle in which has a slope of -1 and mABC = 90°. ABC is dilated by a scale factor of 1.8 with the origin as the center of dilation, resulting in the image A'B'C'. What is the slope of ?
A. - 1
B. 0
C. 1
D. 1.5
E. 2

Answers

Let ABC be the triangle where A is at (0, a), B is at (0, 0) and C is at (a, 0).

Note that BA = BC = a, as ABC is isosceles.

Also, ∠B = 90°

After a dilation with a scale factor of 1.8 with the origin as the center of dilation, length BA will be increased to 1.8 times and will become B'A'.

So, point A will be moved to (0, 1.8a).

Similarly, point C will be moved to (1.8a, 0).

Now, slope of A'C' = [tex]\frac{0-1.8a}{1.8a-0}[/tex]

= - 1.

Hence, the dilation preserves the slope of the hypotenuse.

Answer:

-1

Step-by-step explanation:

A teacher wants to find out the average number of weekly reading hours of her students. She noted the number of reading hours of 5 of her students as shown below: 6, 2, 5, 3, 4 Which measure of central tendency is most appropriate for this situation, and what is its value? Only the median; 5 Only the mean; 4 Either the mean or median; both are 5 Either the mean or median; both are 4

Answers

Answer:

The answer is mean or  median both are 4

Step-by-step explanation:the answer is the  D

The measure of central tendency that is most appropriate for this situation is (d) either the mean or median; both are 4

How to determine the best measure of central?

The dataset is given as:

6,2, 5,3, 4

Calculate the mean using:

Mean = Sum/Count

So, we have:

Mean = (6 + 2 +5 + 3 + 4)/5

Evaluate

Mean = 4

Sort the data elements

2, 3, 4, 5, 6

The middle element is 4.

So, we have:

Median = 4

Hence, the measure of central tendency is most appropriate for this situation is (d) either the mean or median; both are 4

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Find the images of the vertices of PQR shown below, for a dilation with center (0,0) and scale factor of 2. Then graph the image.

Answers

Answer:

The images of PQR are P'=(8 , -6) , Q' = (8,6) and R' = (14 , -6)

Step-by-step explanation:

From the given graph:

the coordinates of PQR i.e,    

P= (4, -3) , Q= (4,3) , R= (7,-3)

Given: the scale factor of 2 and center of dilation at origin i.e (0,0)

The mapping rule for the  dilation applied to the triangle as shown below:

[tex](x, y) \rightarrow ( kx, ky)[/tex] where k represents the scale factor i.e, k=2 or we can write it as ;

[tex](x, y) \rightarrow (2x, 2y)[/tex]

For P = (4, -3)

The image P' = [tex](2\cdot 4 , 2\cdot (-3))[/tex]

P'= [tex](8, -6)[/tex]

Similarly for Q = (4, 3) and R = (7 , -3)

the image of Q' = [tex](2\cdot 4 , 2\cdot (3)) = (8 , 6)[/tex]

The image of R' = [tex](2\cdot 7 , 2\cdot (-3)) = (14 , -6)[/tex]

Now, plot the graph of PQR as shown in the attachment:


The images of the vertices of PQR are P' (8, -6), Q' (8, 6), and R' (14, -6).

A graph that shows triangle PQR and the image triangle P'Q'R is shown in the picture below.

In Mathematics and Geometry, a dilation is a type of transformation which typically changes the size (dimensions) of a geometric object, but not its shape.

In this scenario an exercise, we would dilate the coordinates of the pre-image (triangle PQR) by applying a scale factor of 2 that is centered at the origin (0, 0) in order to produce the coordinates of its image as follows:

Vertices P (4, -3) → (4 × 2, -3 × 2) = P' (8, -6).

Vertices Q (4, 3) → (4 × 2, 3 × 2) = Q' (8, 6).

Vertices R (7, -3) → (7 × 2, -3 × 2) = R' (14, -6).

In concluson, we can logically deduce that the dilation is an enlargement because the size of the pre-image is smaller than the image.

what does n/6 = 5.5 equal, what does n equal

Answers

Hello!

[tex]\frac{n}{6}=5.5[/tex]

First you had to multiply by 6 from both sides.

[tex]\frac{6n}{6}=5.5*6[/tex]

Then you simplify by the answer is correct.

[tex]n=33[/tex]

Hope this helps!

Thank you for posting your question at here on Brainly.

-Charlie

Triangle XYZ slides 2 units left and 1 unit down on the coordinate plane. If the original measure of angle X was 40 degrees, what is the measure of angle X'? 30 degrees 40 degrees 60 degrees 140 degrees

Answers

40, transitions don't effect the angles of the shapes vertexes.

Answer:40 degrees

Step-by-step explanation:

Factor the expression 2x^3-10x^2-5x+25. Show your work.

Answers

Step 1. Factor out common terms in the first two terms, then in the last two terms.

2x^2(x - 5) -5(x - 5)

Step 2. Factor out the common term x - 5

(x - 5)(2x^2 - 5)

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