If f(x) = 3x2 + 2x - 2, find f(8) - f(-5)

Answers

Answer 1

Answer: 143

Step-by-step explanation:

f(8) = 3(8)^2 + 2*8 - 2 = 3*64 + 16 - 2 = 192 + 16 - 2 = 206

f(-5) = 3(-5)^2 + 2*(-5) - 2 = 3*25 + (-10) -2 = 75 - 10 - 2 = 63

f(8) - f(-5) = 206 - 63 = 143


Related Questions

Factor completely
3x^2 + 7x - 6


Zzz

Answers

Answer:

(3x−2)(x+3)

Step-by-step explanation:

these are ur answers

3x^2+7x-6
3x^2+7(x)-6
3x^2+(-2+9)x-6
3x^2-2x+9x-6
(3x^2-2x)+(9x-6)
x(3x-2)+3(3x-2)
(3x-2)(x+3)

Brainliest please??

Which measurement could represent they side lengths of a right triangle?
a. 3m, 4m, 5m
b. 10m, 12m, 16m
c. 6m, 8m, 12m
d. 4m, 5m, 9m

Answers

The answer would be C.

D is the midpoint of CE and EC = 18. Find the length of DE

Answers

Answer:9

Step-by-step explanation:

The college tutoring center staff are considering whether the center should increase the number of math workshops they offer to help students improve their performance in math classes. Faculty would like to know if requiring student attendance at these math workshops will improve overall passing rates for their students in their math classes. They plan to use the number of workshops attended to predict the final exam score and regression analysis to determine the effectiveness of the mandatory workshop attendance policy.

For each of the following classify the variable as explanatory, response, or neither.

a. Whether the student attended a workshop.
b. Number of workshops attended
c. Whether the student passes the course

Answers

Answer:

a. Whether the student attended a workshop.   Neither

b. Number of workshops attended.  Explanatory variable

c. Whether the student passes the course. Response variable

Step-by-step explanation:

In a given experiment, the response variable addresses the core of the question that was asked. In the experiment above, we are trying to determine the passing rate. That is the response variable. The explanatory variable provides an explanation for the response.

The number of workshops attended by the students would provide an explanation of their passing rates.  Whether the student attended a workshop is not a consideration in the experiment, because it is believed that they would attend the workshop.

Write a function rule. Then find the value of y for the given value of x.
y is 4 more than the product of 7 and x; x = 3

Answers

Answer:

25

Step-by-step explanation:

x = 3

according to the condition,

y = 7× x + 4

y = 7× 3 +4

y = 21 + 4

y = 25

(6x^4-8x^2) divided by 2x^2, where x does not equal 0?

Answers

Answer:

3x^2 - 4

Step-by-step explanation:

(6x^4 - 8x^2) ÷ 2x^2

3x^2 - 4

On a number line, which fraction would be to the right of 1/2?

A) 2/12
B) 1/3
C) 10/20
D) 16/25

Answers

Answer:

C. I hope this helps! Have a great day.

What are the Factors of 8?

Answers

factors: numbers multiplied together to get the product (final number). so:

2 and 4 (2 x 4 = 8)
1 and 8 (1 x 8 = 8)

the factors of 8 are 2, 4, 1, and 8

Answer:

1,2,4,8

Step-by-step explanation:

Try 1x8=8, put on factor list.

Take 2.

Take 3 next.

Since there's no more, iss done.

a car rental service charges customers for the number of miles they travel rounded to the nearest whole mile George travels 40.8 miles how many miles will he be charged explain

Answers

Answer:

41 miles

Step-by-step explanation:

the company is saying they will round the number of miles, and charge you that number

when rounding 40.8, you round up to 41

1,2,3,4 rounds down to 0

5,6,7,8,9 rounds up to the next 0 up

The required miles he will be charged for is 41 miles.

Given that,
A car rental service charges customers for the number of miles they travel rounded to the nearest whole mile George travels 40.8 miles
To determine how many miles will he be charged.

What is rounding of values?

The rounding of values is superseding a number with an inexact value that has a more ephemeral, more uncomplicated, or more direct representation.

Here,
The customer traveled for 40.8 miles,
Now round it to the nearest whole miles, Since 40.8 where 0.8 is 0.2 near to the 1 so the round of 40.8 become 40.8 + 0.2 = 41

Thus, The required miles he will be charged for is 41 miles.

Learn more about round the decimal here;

brainly.com/question/867784

#SPJ2

If you have a box of candy that is 8 inches long, 5 inches wide, and 2

inches tall, how much space do you have for candy?

Answers

80 sq cubed you multiply all three numbers to find the valume.

Jakes grandmother lives 8 miles away from him.His aunt lives 6 times as far away from him as his grandmother.How far away does his aunt live ?

Answers

Answer:

48 miles.

Step-by-step explanation:

If Jake's grandma lives 8 miles away, and his aunt is 6 times as far, then you multiply 6 * 8 and get 48.

I NEED HELP ASAP PLEASEEEEEE

Answers

Answer:

3/24= 33/264

2/9= 12/54

4/5= 32/40

8/9= 16/18

42/18= 7/3

32/12= 8/3

Step-by-step explanation:

You have to use common factors and denominators to match numbers. VERY COMPLICTED! Hope this helps!

3) You paid $5 for a bucket of popcorn and $1.25 per candy bar. How many candy bars
can you buy to spend no more than $10?

Answers

4 dollars flat $4.00

Step-by-step explanation:

1.25x4= 5$ 5$+5$=10$

Answer:

4 candy bars

Step-by-step explanation:

you have to subtract $5 from $10, which is $5, then take the .25 from the candy bar. Add $4 candy bars to $5, $9, and then add in the .25. .25 times 4 is $1, and $9+$1 is $10

3. Find the precise. or exact. sum of these two numbers. 123+358 = ​

Answers

Answer:

481

Step-by-step explanation:

find the measure of angle b ​

Answers

It’s 90-37 degrees so the answer would be 53 degrees

The distance between two points is √39 One endpoint is (4,−3). It is known that the y-coordinate of the other endpoint is 2.

What is the x-coordinate of this endpoint?

Answers

Answer:

[tex](4-\sqrt{14}, 2)\text{ or } (4+\sqrt{14}, 2)[/tex]

Step-by-step explanation:

We have the two points: (4, -3) and (x, 2).

We know that the distance between them is √39.

To find our x-coordinate of the second point, we can use the distance formula:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2[/tex]

Let (4, -3) be (x₁, y₁) and let (x, 2) be (x₂, y₂). We also know that the distance d is √39. Substitute:

[tex]\sqrt{39}=\sqrt{(x-4)^2+(2-(-3))^2[/tex]

Solve for x. First, let's square both sides. This cancels out the square roots:

[tex]39=(x-4)^2+(2+3)^2[/tex]

Evaluate the second term on the right:

[tex]39=(x-4)^2+(5)^2[/tex]

Square:

[tex]39=(x-4)^2+25[/tex]

Subtract 25 from both sides:

[tex]14=(x-4)^2[/tex]

Take the square root of both sides. Since we're taking an even root, we need plus/minus. So:

[tex]x-4=\pm\sqrt{14}[/tex]

Add 4 to both sides:

[tex]x=4\pm\sqrt{14}[/tex]

Therefore, there exists two possibilities for our second point. It can either be:

[tex](4-\sqrt{14}, 2)\text{ or } (4+\sqrt{14}, 2)[/tex]

And we're done!

What is the sum of (−9x4+6x3+2x5+6) and (3x5+3x4+7x3+8)?

Answers

Answer:

(−9x4+6x3+2x5+6)

(3x5+3x4+7x3+8)

Step-by-step explanation:

The answer to (−9x4+6x3+2x5+6)  is -2

and the answer to (3x5+3x4+7x3+8) Is 56

What is the measure of AC?

Answers

Answer:

The measure of AC is 4 and 46.

Step-by-step explanation:

Find -5/6 / 1/2. Write in simplest form

Answers

-5/12
you have to multiply -5/6 and 1/2

A circle’s circumference is 600 m. What is the circle’s area?
a
36,000.17 m^2
b
180,067.87 m^2
c
57,275.17 m^2
d
300,000 m^2



Need this answer asap or My Moms going to KILL me

Answers

Answer:

A-36,000.17m^2

Step-by-step explanation:

plsss help me! I’m stuck :(


Answers

Answer:15 = 2   16 = -1.25

Step-by-step explanation:If you need any more help I'm usually available between 9 a.m - 3:50 pm

write 1/64^2 using a negative exponent

Answers

▪ Answer:

2^(-12)

▪ Step-by-step explanation:

Hi there!

1/64^2 =

= 1/(2^6)^2

= 1/2^12

= 2^(-12)

Good luck !

use

(a^b)^c = a^(b×c)

1/a^b = a^(-b)

What the tenth place in 50,445

Answers

Answer:

50, 445

Step-by-step explanation:

WHO KNOWS HOW TO DO solving literal equations please help I'll put you on brain list
1. [tex]nx + y = 3f[/tex]

2. [tex] \frac{x}{2} - h = 3n[/tex]

3. [tex]px + qx = w[/tex]

4. [tex]5h \: \frac{x - 3}{w} [/tex]

5. [tex]c = \frac{ax}{x + b} [/tex]

6. [tex] \frac{2}{x} + \frac{n}{y} = 3[/tex]

Answers

Answer:

are u an bts army ?????????? can u pls comment me

1. At Doug's discount all CDs sell for the same price. There is also one price for
DVDs. Dave buys three CDs and two DVDs for $67. Joyce buys two CDs and four
DVDs for $90.
(4 pts.)
What is the price of one CD? One DVD?

Answers

Answer:

I know Dave's one is 13.04$ Just to get you started.

Step-by-step explanation:

If you divide Dave's one, which is 67 by 5, you get 13.05.

Do the same with Joyce's.

If the sum of three consecutive numbers is 1998, what is the first one?

Answers

Answer: 665

Step-by-step explanation: X + X + 1 + X + 2 = 1998

3X + 3 = 1998

3X + 3 - 3 = 1998 - 3

3X = 1995

3X/3 = 1995/3

X = 665

g(x) = -4x – 5
f(x) = -4x - 1
Find g(-6) + f(-6)

Answers

Answer:

19+23

Step-by-step explanation:

I need help please help me​

Answers

Is there anwer choices

Multiply (3.2 x 10^8) x (1.3 x 10^9)

Answers

Answer:

4.16 × 10 ^17

Step-by-step explanation:

What is the mixed number fraction for 4 5/8

Answers

Answer:

37/8

Step-by-step explanation:

Answer:

37/8

Step-by-step explanation:

gh

Other Questions
How many atoks are in each element sampke? 16.5 g Sr, 26.5 g Fe, 7.73 g Bi, 36.4 g P what is the distance between the points (0,-1) and (8,7) someone please help me ASAP Please help I've been staring at this thing for 30 minutes it says I have to match the segments with its measure I don't understand what goes where :( Hi plz help its argent its for Spanish Answer these question for brainlist and 5 stars Kaitlin runs 6 miles in 50 minutes at the same rate how many miles would she run in 35 minutes select a pair of numbers that have a sum of 9 and a difference of 1 3y-9x=21standard to slope intercept simplified B) 192.75 Place Value Chart with Decimalsten thousandthousandshundredstens onestenthshundredthsthousandthsExpanded Notation:Word Form: Select whether each value for x will make the inequality below a True or False statement. x + 2 > 5.83 True or False 6 True or False7.1 True or False 5/3 True or False19/5 True or False 45/7 True or False Solve: sqrt(x+9) = x-3 How much time will Alex need to walk to his school, which is 2 1/4 miles away from his house, if he would walk with the speed of4 1/2 mph A recipe calls for 3 3/4 cups of flour. How many cups will you need if you are preparing 5 batches of the recipe? How does the Gulf Stream affect weather in the United States?A. It brings cooler temperatures from the poles. B. It brings cooler temperatures from the tropics. C. The warm surface currents help create storms and fog. D. The cool surface currents produce cooler weather and fog. 4.How does Walter's description of bravery develop the theme of the story? (Paragraphs43-45)A. It reveals the courage it takes to admit a mistake.B. It reveals the impact regret can have on a person.C. It reveals the damaging effects of revenge.D. It reveals the unreliable nature of gossip. I need help in solving this problem. I need it to be factored by the GCF. I know the answer is (x-3)(5x-1), but I need the work.5x^2-16x+3I also have 2x^2+7x+5 and the answer to it is (2x+5)(x+1), but I also need to work too. 1. X/5 + 6 20B.X-20C.x 4 = 15x - 2y = 0 solve using substitution please show work I used 1/3 of a bottle of wax to wax 3/4 of a car. How many cars can I wax with one bottle? Please helppp