Consider the function f(x) = 2x^2 - 4x + 9. Evaluate 2f(3) + 3f(-3).

Answers

Answer 1

Answer: 147

Step-by-step explanation:

To evaluate 2f(3)+3f(-3), we first need to find the values of f(3) and f(-3). Given f(x), we just plug in x=3, -3 into f(x).

f(3)=2(3)²-4(3)+9         [exponent]

f(3)=2(9)-4(3)+9          [parenthesis]

f(3)=18-12+9                [subtract]

f(3)=6+9                       [add]

f(3)=15

Now, we find f(-3).

f(-3)=2(-3)²-4(-3)+9      [exponent]

f(-3)=2(9)-4(-3)+9         [parenthesis]

f(-3)=18+12+9               [add]

f(-3)=30+9                    [add]

f(-3)=39

With the values of f(3) and f(-3), we can evaluate the expression.

2(15)+3(39)                  [multiply]

30+117                          [add]

147

Now, we know the value is 147.


Related Questions

HELP!! I WILL GIVE YOU BRAINLIEST!!!

Answers

Answer:

A

C

D

E

I believe thats the answer:)

Step-by-step explanation:

The answer is c because I did this a while bavk

Distances in space are measured in light-years. The distance from Earth to a star is 4.1 × 1013 kilometers. What is the distance, in light-years, from Earth to the star (1 light-year = 9.46 × 1012 kilometers)? (5 points)


0.23 light-year

2.36 light-years

4.33 light-years

5.36 light-years

Answers

Answer:

5.36 light years

Step-by-step explanation:

if a light-year = 9.46 x 1012

9.46 x 1012 = 9512.8

4.1 x 1013 = 4153.3

After that you would subtract

9512.8 - 4152.3 = 5.360.5

the real answer is 5.36 light years

So the distance in light years from earth is 5.36 light years

Hope this helps

The graph shows the amount of money paid when purchasing bags of peanuts at the zoo: A graph is shown. The x-axis is labeled from 0 to 9. The y-axis is labeled from 0 to 13. Four points are shown on the graph on ordered pairs 0, 0 and 1, 4 and 2, 8 and 3, 12. These points are joined by a line. The label on the x-axis is Bags of peanuts. The title on the y-axis is Total cost in dollars. What is the cost of one bag of peanuts? (4 points) Group of answer choices
A. $0
B. $4
C. $8
D. $12

Answers

Answer: B. $4

Step-by-step explanation:

Which table of ordered pairs represents A 2-column table with 3 rows. Column 1 is labeled x with entries negative 2, negative 4, negative 6. Column 2 is labeled y with entries 4, 16, 36.
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 4, negative 6, negative 8. Column 2 is labeled y with entries negative 8, negative 12, negative 18.
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 3, negative 5, negative 7. Column 2 is labeled y with entries 5, 3, 1.
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 3, negative 6, negative 9. Column 2 is labeled y with entries 12, 24, 36.a proportional relationship?

Answers

Answer:

Step-by-step explanation:

negative 18.

A 2-column table with 3 rows. Column 1 is labeled x with entries negative 3, negative 5, negative 7. Column 2 is labeled y with entries 5, 3, 1.

your answer is c c c c c c c c c c c c c c c c  c cccccccccccccc

Which equation is true? *

831 x 10^2 = 8,310
406 x 10^3=406,000
915 x 10^4 = 915,000
257 x 10^2 = 257,000

Answers

The answer would be a.
the answer it’s A i used a calculator

Which trend line has been drawn correctly using the divide-center method?

Answers

A but I'm not sure so can you tell me what it is

The table shows the amount of red paint that can be added to different amounts of white paint while making a custom paint color: Paint Color Quarts of Red Paint Quarts of White Paint 4 20 5 25 7 35 8 40 Which statement is true about the ratio of red paint to white paint in the paint color? (4 points)
Group of answer choices
A. It is 1:16.
B. It is 16:1.
C. It is 5:1.
D. It is 1:5.

Answers

Sorry to say this but the answer isn't C it is D. It is 1:5 I did the test and past sorry i came so late

but i hope this helps ^.^

Please answer question correct.

Answers

Answer:

A 13.75

Step-by-step explanation:

because you said the you 1 ponit for every right ans and -0.25 for incorret ans so 15 right ans would give you 15 ponits and 5 incorret ans would give you -1.25  so i add up  

15+-1.25=13.75 or 55/4

i did do the math so it is right

A sporting goods company has three stores, all about the same size, within the city. The graph shows last month’s sales figures for one of the stores. Which statement is best supported by the information in the graph?

Answers

the answer should be “25% of.....was in the athletic department” the total sales is 60,000 and athletic department made 15,000 with is 1/4 (25%) of the total sales

Answer:

b

Step-by-step explanation:

Find the domain:

[tex]y=\frac{x+3}{|x-1|-4}[/tex]

Answers

Answer:

the function domain:

x<5 or x>5

Step-by-step explanation:

For this type of function, the domain is all real numbers. A function with a fraction with a variable in the denominator. To find the domain of this type of function, set the bottom equal to zero and exclude the x value you find when you solve the equation. A function with a variable inside a radical sign.

un carpintero tiene un listón de 12metros de longitud. quiere dividirlo en trozos iguales que midan siempre un numero exacto de metros. De cuántas maneras puede hacerlo?

Answers

Answer:

2

Step-by-step explanation:

6 metros multiplicado por 2 metros o 3 metros multlipicado 4 metros

2
Step-by-step explanation

Find the sum of the absolute deviations of the following data set.

8, 5, 15, 12, 10

Answers

Answer:

1

Step-by-step explanation:

8/1=8

5/1=5

15/1=5

12/1=12

10/1=10

So I think that answer is 1.

Answer:

I think the answer is 2.8.

Step-by-step explanation:

Absolute Deviation is where N is the number of observed values, X-bar is the mean of the observed values and XI are the individual values.

A candle burns down at the rate of 0.5 inches per hour. The original height of the candle was 9 inches.

Part A: Write a list of 6 ordered pairs to show the height of the candle in inches (y) as a function of time in hours (x) from the first hour after it started burning. For example, the point (0, 9) would represent a height of 9 inches after 0 hours. Explain how you obtained the ordered pairs. (5 points)

Part B: Is this relation a function? Justify your answer using the list of ordered pairs you created in Part A. (2 points)

Part C: If the rate at which the candle burned was 0.45 inches per hour instead of 0.5 inches per hour, would the relation be a function? Explain your answer using input and output values. (3 points)

Answers

B is a function that the only one ik

What is the diagonal space of a cube? Can someone detail it to me with an example? Thanks

Answers

Answer:

four

Step-by-step explanation:

Space diagonals contrast with face diagonals, which connect vertices on the same face (but not on the same edge) as each other. For example, a pyramid has no space diagonals, while a cube (shown at right) or more generally a parallelepiped has four space diagonals.

can someone help me out? :P

Answers

Answer:

6, 8, 22

Step-by-step explanation:

1- 4
4-18
9-36
hope this helped

Simplify:

–23.9a + 46.8 + 42.6a – 26b – 18.7a
A. 52a – 26b + 46.8
B. –26b + 46.8
C. –18.7a – 26b + 46.8
D. 23.9a – 26b + 46.8

Answers

Answer:

The answer is letter B.

Hope it will help you

Answer:

B

Step-by-step explanation:

:)

Suppose you want to buy bouquets of flowers for a party. An equation that represents the cost, y, in dollars, for x bouquets is y=22x. Decide if this equation represents a proportional relationship. Explain your answer.

Answers

Answer:

Yes

Reason/Explanation

This equation represents a proportional relationship because the graph of the equation is a straight line passing through the origin.

Hope this helps :P

Which of these describes a method in studying plate movements? C

A. Correlate the rotation of Earth to plate movement

B. Match the grooves along the coastlines of continents

C. Collect common fossil evidence within the Eurasian plate

D. Match relief elements on the same side of the Atlantic Ocean

Answers

Answer:

A.............

Step-by-step explanation:

I think it helps you

Answer:

I think the answer is A because non of the other answers are confusing to me.

I hope this is helpful.

Step-by-step explanation:

Please help ASAP I will also give brainiest :)

Determine the intercepts of the line.

Answers

x intercept is (5/2,0)
y intercept is (0,5)

Answer:

x: (5/2,0)

y: (0,5)

Step-by-step explanation:

To solve for x-intercept, substitute 0 for y.

-4x+7=2(0)-3

-4x+7=-3

-4x=-10

x=10/4 or 5/2

To solve for y-intercept, substitute 0 for x.

-4(0)+7=2y-3

7=2y-3

10=2y

y=5

Find each unit rate. Round to the nearest hundredth if necessary. 1. $240 for 4 days can some one help I'm not good at math at alll

Answers

60!! Good luck
240/4=60
60 is the right answer

Help?
( this is not from a quiz. )
( also, this is science. )

Answers

Answer:

strong and negative

Step-by-step explanation:

because the slope of the line is negative, this would be a negative correlation. Also, since all the points are generally next to each other and there seems to be a trend since there are no outliers, this is strong

Is the percent increase from 50 to 70 equal to the percent decrease from 70 to 50? Explain.

Answers

Answer:

No. The amounts of change are the same, but the original amounts are different.

Answer:

Step-by-stepNo. The amounts of change are the same, but the original amounts are different. explanation:

PLS HELP BTW DON'T JUST DO IT FOR THE POINTS!!
There are 300 dogs spread around 12 kennels across Texas. If x represents kennels and y represents the number of dogs, what is k, the constant of proportionality?

Answers

Answer:

k = 25

Step-by-step explanation:

If there are 300 dogs and 12 kennels, we divide 300 by 12, and get 25, which is the number of dogs per kennel.

Sam and his family go out to eat for his birthday. The total bill is $123.79. If his dad leaves the waitress a 15% tip, how much will the waitress receive?

Answers

Answer:

$18.5685 or $18.56

Step-by-step explanation:

The answer is $18.56 because 123.79 multiplied by 15% is $18.56

Answer:

about $18.75

Step-by-step explanation:

15% of 123.79 is 18.5685

Which expression is equivalent to 2(m − 4) + 1? 2m − 7 2m − 3 2m + 9 2m + 10

Answers

Answer:

2m - 7

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define expression

2(m - 4) + 1

Step 2: Simplify

Distribute 2:                    2m - 8 + 1Combine like terms:       2m - 7

2m - 7

take it from the experts ^

Karen earns $5 by delivering newspapers each week. She saves $3 and she spends the rest. How many weeks will it take her to save enough money to buy a $35 gift card? (Use the table to help you solve the problem; you will need to copy it onto a piece of paper

Answers

Answer:

12 Weeks.

( Is this what you were asking for? <3 )

I need hlp
Explain your reasoning

Answers

1. the boy would weight about 10 pounds because u divide the weight by 6

2. 22.7 lbs
1. the boy would weigh about 10 pounds because you would divide the weight by 6!!
2. (22.7 pounds)

Henry made himself a sandwich that was StartFraction 11 Over 12 EndFraction of a foot long. He put pepperoni on Three-fourths of his sandwich. What length of the sandwich did not have pepperoni on it? StartFraction 11 Over 48 EndFraction of a foot StartFraction 5 Over 16 EndFraction of a foot StartFraction 11 Over 16 EndFraction of a foot StartFraction 9 Over 11 EndFraction of a foot

Answers

Answer:

D

Step-by-step explanation:

Answer:

The answer is A on the edge.

Step-by-step explanation:

HELP WILL GIVE BRAINLEST FOR CORRET ASWER

Answers

1.) -15
2.) 104
3.) 220
4.) -11
5.) -9
6.) 705

HELP I AM TIMED W WILL MARK BRAINLEST
How many groups of Two-thirds are in Three-fifths?

A fraction bar labeled 1. Under the 1 are 5 boxes labeled one-fifth. Under the 5 boxes are 3 boxes containing one-third. Under the 3 boxes are 15 boxes labeled StartFraction 1 Over 15 EndFraction.

Answers

Answer:

1

Step-by-step explanation:

Answer:

1 and 4/15 or 2

Step-by-step explanation:

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