6
Simplify the following expression.
(9x2 - 3x + 7) + (-3x2 + 2)

A. 6x2 + 9
B. 12x2 - 3x + 5
C. 6x2 - 3x + 9
D. 6x2 + 3x + 9

Answers

Answer 1

The above expression is not in its simplest form, and we need to simplify it, that is what asked in the question.

Given equation,

[tex](9 {x}^{2} - 3x + 7) + ( - 3 {x}^{2} + 2)[/tex]

First of all, let's open the parentheses to combine the like terms for simplifying.

[tex]9 {x}^{2} - 3x + 7 - 3 {x}^{2} + 2[/tex]

Arranging the like terms, x² with x², x with x and constant terms near to each other.

[tex]9 {x}^{2} - 3 {x}^{2} - 3x + 7 + 2[/tex]

Simplying further,

[tex](9 - 3) {x}^{2} - 3x + 9[/tex]

[tex]6 {x}^{2} - 3x + 9[/tex]

So, the correct option is C

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Related Questions

2m - n =8 Solve for n

Answers

Answer:

[tex] \boxed{\sf n = 2m - 8} [/tex]

Step-by-step explanation:

Solve for n:

⇒2m - n = 8

Subtract 2 m from both sides:

⇒2m - 2m - n = 8 - 2m

2m - 2m = 0:

⇒-n = 8 - 2 m

Multiply both sides by -1:

⇒-n × (-1) = (8 - 2m) × (-1)

⇒n = 2m - 8

The required value of n is equal to n = 2m - 8.

An expression is given in the question ; i.e., 2m - n = 8.

We have to find the value of the 'n' .

What is algebra ?

Algebra is the branch that deals with various symbols and the arithmetic operations such as addition , subtraction , etc.

As per the question ;

The given expression is 2m - n = 8.

Let's solve it to get the value of n.

The value of n can be find out , if we bring n to the left side of equal sign and 8 to the right of equal sign.

So ,

2m - n = 8 can be written as ;

2m = 8 + n

or

n = 2m - 8

Thus , the required value of n is equal to n = 2m - 8.

To learn more about algebra click here ;

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(-6) to the power of negative 5 in fraction form ,

Answers

Answer:

-6430041/50000000000

Step-by-step explanation:

so -6 to the power of negative 5 is -0.00012860082 which as a fraction is -6430041/50000000000


Jack is fishing on a pier that is 2 feet above the water. When he casts his rod, the hook
on his line lands 8 feet below water. What is the total distance his hook traveled?

Answers

Answer:

10 feet

Step-by-step explanation:

2 + |-8| = 10

Hope this helps, have a great day:)

ANSWER: 10 feet
Explanation: 2 + 8 = 10

Chris has finished 30% of an art project that has taken him a total of 9 hours so far

Answers

it should take him about 30 hours

Algebra 1 9th grade 2/3x =-8

Answers

Answer:

x=-12

Step-by-step explanation:

2/3x=-8

Multiple both sides by 3/2

x=-24/2

x=-12

Answer:

x=-12

Step-by-step explanation:

Multiply both sides by 3/2

x=-24/2

x=-12

The 2-minute-and-43-second song “You’re Welcome” from the movie Moana has been used in more than 3,000 videos. What percent of the song can be used in a 30-second TikTok?

Answers

Answer:

18.4%

Step-by-step explanation:

18.4

alliknowinmybrainly

Which of the following are integers?

-
0
-16
147
1000000
-3
-0.35

Answers

Answer:

0, -16, 147, 1,000,000, and -3

Step-by-step explanation:

An integer is a whole number and its opposite

Answer:

it’s correct

Step-by-step explanation:

tysm!

What is the simplified form of each expression? Use
the Distributive Property.
a. (j + 2)7
b. -8(x-3)
c.-(4-0)
d. -(11 + 2b)

Answers

a. 7j + 14

b. -8x + 24

c. -4 + 0

d. -11 - 2b

Tina worked 5 1/3 hours on Saturday and 6 1/4 hours on Sunday. How many total hours did she work these two days?

Answers

Answer:

11 7/12

Step-by-step explanation:

5 1/3 + 6 1/4 = 11 7/12

A rectangle has a width of (3x² – 5x – 2) units and a length of (2x² + 12x - 4) units. Create a simplified expression of the form ax+ bx + c for the perimeter of the rectangle.

Perimeter = ........... units ​

Answers

Answer:

b=(3x² – 5x – 2)

l=(2x² + 12x - 4)

perimeter= 2(l+b)

=2( 2x² + 12x - 4+3x² – 5x – 2)

=2(5x²+7x-6)

=(10x²+14x-12) units

Hope it helps:-)

what is an expression is equivalent to 16.8 - 18.6

Answers

Answer:

- 1.8

Step-by-step explanation:

Step 1:

16.8 - 18.6

Answer:

- 1.8

Hope This Helps :)

Answer:

so is it negitive

Step-by-step explanation:

Solve 2(4x+2)=4x-12(x-1)

Answers

Answer:

x = 1/2

Step-by-step explanation:

Answer:

x = 0.5

Step-by-step explanation:

2(4x+2)=4x-12(x-1)   (by PEDMAS, we deal with the parentheses first by using the distributive property)

4x(2)+2(2)=4x+ x(-12) -1 (-12)

8x + 4 = 4x - 12x +12  (simplyfy each side)

8x + 4 = - 8x +12   (add 8x to both sides)

8x + 4 + 8x = 12

16x + 4 = 12    (subtract 4 from both sides)

16x = 12 - 4

16x = 8  (divide both sides by 16)

x = 8/16

x = 0.5

how do I simplify 3⁶ x 3⁵​

Answers

Answer:

[tex]3^{11}[/tex]

Step-by-step explanation:

Using the rule of exponents

[tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex] thus

[tex]3^{6}[/tex] × [tex]3^{5}[/tex] = [tex]3^{(6+5)}[/tex] = [tex]3^{11}[/tex]

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{ {3}^{11} }}}}}[/tex]

Step-by-step explanation:

[tex] \sf{ {3}^{6} \times {3}^{5} }[/tex]

Add the indices and take the same base

[tex] \dashrightarrow{ \sf{ {3}^{6 + 5} }}[/tex]

[tex] \dashrightarrow{ \boxed{ \sf{ {3}^{11} }}}[/tex]

Hope I helped!

Best regards! :D

HELP Plssss..... The m

Answers

Answer:

Step-by-step explanation:

Hey there!!!

According to the question,

Angle P is three less than twice less of an angle Q.

Then, let angle Q be x then angle P is 2x-3.

Now, it has also given that they are supplementary angle.

We know that the sum of supplementary angle is 180°.

Therefore, x+ 2x - 3°=180°.

Or, 3x = 180°-3°

Or, x = 177°/3

Therefore the measure of angle Q is 59° and P is 2×59°-3°= 121°.

Hope it helps....

Faith is driving to a concert and needs to pay for parking. There is an automatic fee of
$7 just to enter the parking lot, and when she leaves the lot, she will have to pay an
additional $2 for every hour she had her car in the lot. How much total money would
Faith have to pay for parking if she left her car in the lot for 3 hours? How much
would Faith have to pay if she left her car in the lot for t hours?
Cost for 3 hours:
Cost for t hours:
Submit Answer
attempt 1 out of 2
N]
Ri

Answers

Answer: 13

Step-by-step explanation:

cost for 3 hours: 7+2(3)=13

cost for t hours: 7+2t

If BD=7x-10, BC=4x-29,and CD=5x-9 what is x ?

Answers

From the question, we know that the sum of BC and CD equals BD.

BD = BC + CD = 7x - 10

BC = 4x - 29

CD = 5x - 9

Let's set BC and CD equal to BD

4x - 29 + 5x - 9 = 7x - 10

Combine like terms on the left side.

9x - 38 = 7x - 10

Add 38 to both sides and subtract 7x from both sides.

2x = 28

Divide both sides by 2

x = 14

Answer:

Step-by-step explanation:

Hope this helps

Item 4 The sum of the angle measures of the polygon is 540°. Write and solve an equation to find the value of x. An equation is =540. The solution is x= .

Answers

Let's set the sum of the angle measures equal to 540 degrees.

139 + 3x + 5x - 10 + 10x - 9 + 3x = 540

Let's combine like terms.

21x + 120 = 540

Subtract 120 from both sides.

21x = 420

Divide both sides by 21

x = 20

What is an equation of the line that’s passes through the the point (-6,-6) and is parallel to the line x-3y=18

Answers

Answer:

y = 1/3x -4

Step-by-step explanation:

solve x-3y=18 for y

3y=x-18

divided both  by 3 so  y = 1/3x - 6

The parallel line has the same slope so you have to find the y-intercept of the line passing through (-6,-6)

so y = 1/3x -4

Select all of the following functions that are quadratic.

y = 2x2

3 = 2x2 – 8

y = –2 + 2x – 8

y + 3x = 2x2 – 8

y +3x2 = 2x + 3x2 – 8

Answers

Answer:

y = 2x2

y + 3x = 2x2 – 8

Step-by-step explanation:

The equations that are quadratic in nature are -

y = 2x²2x² - 8 - 3 = 0y = 2x² - 3x - 8

What is a quadratic equation?

A quadratic equation is a equation that is of the form -

y = f{x} = ax² + bx + c.

Given are the set of equations.

A quadratic equation is a equation of degree 2. The equation with degree 2 are -

y = 2x²2x² - 8 - 3 = 0y = 2x² - 3x - 8

Therefore, the equations that are quadratic in nature are -

y = 2x²2x² - 8 - 3 = 0y = 2x² - 3x - 8

To solve more questions on quadratic equations, visit the link below -

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1. Rotate Ali the Alien 180°. Be sure to identify your center

of rotation.

Answers

Complete Question

The complete question is shown on the first uploaded image

Answer:

The result of the rotation is Ali the Alien having the same orientation before the rotation.

The center of rotation is the same as the center of Ali the Alien.

Step-by-step explanation:

Let's take the center of Ali the Alien as the center of rotation, so when Ali the Alien is rotated through 180° we will discover that Ali the Alien will have the same orientation as he did before the rotation.

Is this correct? Just say yes/ no and gain 13 points

Answers

Answer:

No, it is 11 [tex]\frac{1}{3}[/tex] or 11 1/3

Step-by-step explanation:


William just accepted a job at a new company where he will make an annual salary of
$60000. William was told that for each year he stays with the company, he will be
given a salary raise of $5000. How much would William make as a salary after 5
years working for the company? What would be his salary after t years?
Salary after 5 years:
Salary after t years:

Answers

Answer:

Salary after 5 years: 60000+(5000)5= 85000

Salary after T years: 6000+(5000)t

Step-by-step explanation:

The way that you would find the amount of money needed after 5 years is by multiplying the 5000, since that is William's raise per year, and then adding 60000, which is the original salary.

In order to find William's salary after t years, since you do not have a number, but have t, you would want to multiply 5000, which is the yearly raise, and t, hich can be any amount of years. After that, you would want to add William's original income to find an answer.

VERY EASY HELP QUICKLY PLEASE!! Write 6.012 as a mixed number in simplest form.

Answers

Answer:

6 3/250

Step-by-step explanation:

hope this helps ..;)

What is 3(x-2)=27 I need help fast

Answers

the answer would be 76
If its solving for x then

Find the distance between the points A(-2, 3) and B(4, 11)

Answers

Answer:

10

Step-by-step explanation:

square root  (y2-y1)^2+(x2+x1)^2

square root (11- 3)^2 + (4- -2)

=10

Solve.
2(2z – 4) = 32
Answer:
Submit Answer
i need the answer, what is it? no explanation needed.

Answers

Answer:

9

Step-by-step explanation:

2(2z-4)=32

4z-4=32

4z=36

z=9

Z= 10. Just distribute the 2 outside the parenthesis first.

Simplify the expression above

Answers

Answer:

2x²

Step-by-step explanation:

Answer:

11y-5

Step by step:

X^2-8x^2+7x^2=0

x+x-2x=0

3-8=-5

2y+9y=11y

(2x-5)/4=6 pls solve it!!

Answers

Answer:

ans is 29/2

Step-by-step explanation:

2x-5/4 =6

2x-=24+5

x= 29/2

Answer:

10

Step-by-step explanation:

(2x-5)/4=6

Or, 2x-5=24

Or, 2x=24+5

Or,2x=29

Or,x=29÷2

Or,x=14.5

Enid, Eddie, and Tamara have formed a partnership. The total investment was $250,000. Enid
owns 17.5% and Eddie owns 36.8% of the partnership. How much money did Tamara invest?

Answers

Answer:

114,250

Step-by-step explanation:

Enid invested 43,750

Eddie invested 92,000

the difference is 114,250

(7^5)^7 HURYYYYY................

Answers

Answer:

Exact Form:

[tex]7^{35}[/tex]

Decimal Form:

3.78818692 x [tex]10^{29}[/tex]

I hope this helped! :) If this is correct please give me brainliest!

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