Let f(x)=-2x^3+5x^2+7x-6 and g(x)=8x^3-5x^2+7x-1. Find f(x)+g(x)=?

Answers

Answer 1

Answer:

6x³ +14x - 7

Step-by-step explanation:

f(x) + g(x)

= - 2x³ + 5x² + 7x - 6 + 8x³ - 5x² + 7x - 1 ← collect like terms

= 6x³ + 14x - 7


Related Questions

x : y = 5 : 3
and
x + y = 56
Work out the value of x - y

Answers

Answer:

14

Step-by-step explanation:

x / y = 5 / 3, then 3x = 5y , x = 5/3y

we can type 5/3y instead of x ;

5/3y + y = 8/3y = 56, then y = 21

.

now let's find x ;

x - 21 = 56, then x = 35

x - y = 35 - 21 = 14

Step-by-step explanation:

pleases try to understand this the second photo is the first, thanks

M is 5 .....plsss help I need emergency help
.......I will mark you as brainlist

Answers

Answer:

100

Step-by-step explanation

5^2=25 25x4=100

Find the value of x.

Answers

Answer:

X = 55

Step-by-step explanation:

The angles have the same degrees, as they intersect at one point.

The answer would be x=55 because both sides are equal.

The area of Kylie's room is 400 square feet. The width of her room is 20 feet. What is the length of her room?

Answers

Answer and Step-by-step explanation:

Assuming the room is a type of rectangle, we need to divide the area by the width to get the length.

So, do 400 divided by 20 to get the length, as length times width equals the area.

400 divided by 20 = 20.

The length of the room is 20 ft. (meaning the room is a perfect square.

#teamtrees #PAW (Plant And Water)

If OK and GE are parallel, what must the length of GE be?

Answers

Answer:

let the length of GE be x,

[tex] \frac{9}{3} = \frac{x}{2} [/tex]

being similar triangle.

9×2=x×3

18 = 3x

x = 18/3

x = 6 cm

what is this equation ?
4008 - 1759

Answers

Answer:

The equation to this problem is 2,249

Answer:

the answer

Step-by-step explanation:

2249 OR

2,249 ;)))

Elena thinks length BC is 16.5 units. Lin thinks the length of BC is 17.1 units. Do you agree with either of them? Explain or show your reasoning.


Answers

Answer:

Option D, I agree with neither Elena nor Lin

Step-by-step explanation:

The remaining part of the question is attached herewith

Solution

As we can see in the image  

ED is perpendicular to AB and BC is perpendicular to AB

Thus, as per the Pythagoras theorem,  

AC^2 = AB^2 + BC^2  

14^2 = 6^2 + BC^2

BC^2 = 196-36 = 160

BC = 12.649 OR 12.65

Hence, option D

I agree with neither Elena nor Lin

20 points pls answer

Answers

The answer to the first one is 0.879 and the second is 50%

Can somebody answer these for me

Answers

Answer:

2) =22

3)= k> 18

Step-by-step explanation:

Find the area please

Answers

Answer:

The area of the trapezoid you have provided is 24.6

Step-by-step explanation:

The area of a trapezoid is :

[tex]0.5h(b_1 + b_2)[/tex]

Just do some substitution:

[tex]0.5 * 6 * (2 + 6.2) = 3 * 8.2 = 24.6[/tex]

2x + 19 and x + 23 are alternate exterior angles. What is the value of x? *

Answers

A value of x of 4 guarantees that the angles 2 · x + 19 and x + 23 could be alternate exterior angles highlighted between two parallel lines.

How to solve a linear equation

If two angles are alternate exterior, then both angles have the same measure. Thus, we have the following expression:

2 · x + 19 = x + 23     (1)

Now we proceed to solve for x:

x = 4

A value of x of 4 guarantees that the angles 2 · x + 19 and x + 23 could be alternate exterior angles highlighted between two parallel lines.

To learn more on linear equations: https://brainly.com/question/14695009

#SPJ1

Simplify the product. Write the answer in standard form.
(9 − 2t2)(9 + 2t2)

Answers

Answer:

-4t^4+81

Step-by-step explanation:

(9-2t^2)(9+2t^2)

−4

HELP ASAP IXL PLZ HELP

x=1? How to find coordinates::(

Answers

Answer:

Q'(1, -5)

R'(1, 1)

S'(5, -5)

Step-by-step explanation:

Since you're reflecting deflecting across x equals to 1 ,also our Q and R Coordinates are on the line x equals to 1 so it's going to stay same only the S coordinates would change. the X value for the coordinates gonna be +ve and Y value gonna be -ve. Because after the reflection of the point the point would lie in the fourth quadrant and in the Forth quadrant Xvalue is positive and Y value is negative.

Please help! I will give Brainliest!
Who is correct?

Answers

Answer:

Eric is correct; side must be between 4 and 16 inches

Step-by-step explanation:

triangle inequality theorem:

6 + 10 > x;    16 > x

x + 6 > 10;     x > 4

4 < x < 16

i really need help!!!

Jason, Lewis, and Nora will be placed in a line along with 7 other people.


What is the probability that they will be next to each other in any order?
Give percentage

Answers

Answer:

[tex]Pr = 6.67\%[/tex]

Step-by-step explanation:

Given

[tex]n = 10[/tex] i.e. 10 people

Required

Probability of being next to each other

First, we calculate the total possible arrangements (without any restriction)

[tex]Total = n![/tex]

[tex]Total = 10![/tex]

If the three are to be next to each other,

First, we arrange the three

[tex]r_1 = 3![/tex]

Now, the 3 will be seen as 1; so, we have a total of 8 people i.e. (1 + 7 others)

The arrangement is:

[tex]r_2 =8![/tex]

So, the total arrangement, when they have to be next to one another is:

[tex]r = r_1 * r_2[/tex]

[tex]r = 3! * 8![/tex]

The probability is:

[tex]Pr = \frac{r}{n}[/tex]

[tex]Pr = \frac{3! * 8!}{10!}[/tex]

Expand

[tex]Pr = \frac{3*2*1 * 8!}{10*9*8!}[/tex]

[tex]Pr = \frac{3*2*1}{10*9}[/tex]

[tex]Pr = \frac{6}{90}[/tex]

[tex]Pr = 0.0667[/tex]

Express as percentage

[tex]Pr = 0.0667 * 100\%[/tex]

[tex]Pr = 6.67\%[/tex]

An online furniture store sells chairs for $150 each and tables for $600 each. Every day, the store can ship a maximum of 18 pieces of furniture and must sell at least $5400 worth of chairs and tables. If x represents the number of tables sold and y represents the number of chairs sold, write and solve a system of inequalities graphically and determine one possible solution.

Answers

Answer:

13,500

Step-by-step explanation:

x + y = 750

750 x 18 = 13.500

The value of the number of tables will be 6 and the number of chairs will be 12.

How to form an equation?

When trying to set up or construct a linear equation to fit a real-world application, identify the known quantities and use the unknown quantity as a variable.

In other words, an equation is a set of variables that are constrained through a situation or case.

From the question constraint of a maximum of 18 pieces of furniture

x + y =18

From the question constraint of at least $5400 worth of chairs and tables

600x + 150y ≥ 5400

By equation first, y = 18 - x put this into second

600x + 150(18 - x) ≥ 5400

450x ≥ 2700

x ≥ 6 hence there is need to sell at least 6 tables.

Put x =6 into x + y =18 then

y = 12 hence at least 12 chairs need to be sold.

For more about the equation

brainly.com/question/2263981

#SPJ2

Ron earned 13200 in interest on an account with a principal amount of 24000 and an interest rate of 11%. How long were the funds in the account?

Answers

Answer:

5 years

Step-by-step explanation:

It is assumed the interest is simple.

Use the interest formula:

I = Prt

We have:

I = 13200P = 24000r = 11% = 0.11

Substitute values and solve for t:

13200 = 24000*0.11t13200 = 2640tt = 13200/2640t = 5 years
I=PRT/100T=100I/PRT=100(13200)/24000(11)T=10(132)/24(11)T=5years

A quality control inspector at a clothing manufacturer

Answers

Quality control inspectors monitor quality standards for nearly all manufactured products, including foods, textiles, clothing, glassware, motor vehicles, electronic components, computers, and structural steel. Specific job duties vary across the wide range of industries in which these inspectors work.

Question 3 (1 point)
Mrs. Randolph has 39 math books and 57 science books that she needs to put in boxes. Each box can hold 8 books. How many
boxes does Mrs. Randolph need? Explain.

Answers

The answer is 12.
57 + 39 = 98
98 divided by two is equal to 12.

This can also be shown by multiplication. 12x8=96
I hope this helped you! :)

2. A six sided cube was rolled. What is the probability of showing an odd number?"
2 points
10%
30%
50 %
1%

Answers

Answer:

50 % since there are 3 odd numbers on a die [1.3.5]  and 3 even numbers [2,4,6]

Step-by-step explanation:

Answer:

50

Step-by-step explanation: PLZ MARK BRANILIST

1 3 5 are odd numbers

2 4 6 are even

so it will be like half and a half

please help me i love u

Answers

Answer:

It’s A.

Step-by-step explanation:

The vertices of a square ABCD are labelled anti-clockwise. A and C are the vertices of an equilateral triangle AEC, whose vertices are also labelled anti-clockwise

Answers

Answer:

Sorry, I don't think there's enough information to solve the problem.

Step-by-step explanation:

Well, there's no numbers to say what the measures of the vertices are. Also, it seems like the question got cut out because the second sentence is incomplete.

Please help!! Will give BRAINLIEST!!!!

Answers

Answer:

domain is all real numbers except -6

Step-by-step explanation:

Answer:

domain is all real numbers except -6

Step-by-step explanation:

Which statement is true?

Answers

Answer:

B is the correct answer

Step-by-step explanation:

The graph of f(x) and g(x)=f(x) + k is shown on the coordinate plane.
k = _ ?

Answers

Answer:

k = 10

Step-by-step explanation:

f(x) has been moved up 10 units to get g(x).  So, k = 10

A square has a side length of 12 cm. Which of the following is closest to the length of its diagonal? A) 9 cm B) 12 cm C) 12v 2 cm D) 24V3 cm 12 VT Fora​

Answers

C) 12V2
12^2 + 12^2 = c^2
144 + 144 = 288
V288 = 12V2

3. Which choice below is an approximate volume of oil that the tank
below can hold?
78 ft. **
25 ft.
OIL TANK
*WHAT IS THE ANSWER*

Answers

Answer
78ft
Explanation

Step by step

Answer: the answer is 119,459ft lol

Step-by-step explanation:

I sacrificed my own score to get a result for the correct answer

(add. write your answer as a fraction, as a whole or as a mixed number)
PLEASE HELP . WILL GIVE BRAINLIEST !

Answers

Answer:

11 2/9.

Step-by-step explanation:

1 8/9 + 9 1/3

= (1 + 9) + (8/9 + 1/3)

= 10 + (8/9 + 1/3)

8/9 + 1/3:

LCD of 3 and 9 is 9 so we have:

8/9 + 3/9 = 11/9

11/9 = 1 2/9

Answer = 10 + 1 2/9

= 11 2/9.

Answer:

[tex]11\frac{2}{9}[/tex]

Step-by-step explanation:

[tex]1\frac{8}{9} +9\frac{1}{3}=1\frac{24}{27} +9\frac{9}{27} =10\frac{33}{27} =11\frac{6}{27}=11\frac{2}{9}[/tex]

I really wasn’t paying attention so if you can put an explanation down please that would be amazing

Answers

Answer:

16+3 = 19+ 6 =25

Step-by-step explanation:

Add all the numbers

Answer is= 25

What is the greatest common factor of 42 and 3

Answers

Answer:

3

Step-by-step explanation:

Prime factorize 42 and 3 and you'll eventually get 3 as your answer.

Answer:

3

Step-by-step explanation:

Since you are looking for the greatest common factor, 3 cant have many factors other than itself. So it would be 3, when simplified its similar to 42/3 and 3/3 where it would be 14 and 1.

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