add or subtract (7x^2-x-2)-(-6x^3+3)

Answers

Answer 1

Answer:

[tex] \tt{}6x ^{3} + {7x}^{2} - x - 5[/tex]

Step-by-step explanation:

[tex] \tt{}(7 {x}^{2} - x - 2) - ( - 6 {x}^{3} + 3)[/tex]

[tex] \tt{}7 {x}^{2} - x - 2 + 6x^{3} - 3[/tex]

[tex] \tt{} {7x}^{2} - x - 5 + 6x ^{3} [/tex]

[tex] \tt{}6x ^{3} + {7x}^{2} - x - 5[/tex]

Answer 2

Answer:

[tex]6 {x}^{3} + 7 {x}^{2} - x - 5[/tex]

Step-by-step explanation:

[tex](7 {x}^{2} - x - 2) - ( - 6 {x}^{3} + 3)[/tex]

➡️ [tex]7 {x}^{2} - 2 - ( - {6}^{3} + 3)[/tex]

➡️ [tex]7 {x}^{2} - x - 2 + 6 {x}^{3} - 3[/tex]

-2 - 3-(2 + 3)-5

➡️ [tex]7 {x}^{2} - x - 5 + 6 {x}^{3} [/tex]

➡️ [tex]6 {x}^{3} + 7 {x}^{2} - x - 5[/tex] ✅


Related Questions

help please, Find the perimeter of the figure to the nearest hundredth.

Answers

I believe it’s 20 am so sorry if am wrong by I can be stupid

Answer:

[tex]p=38.84[/tex]

Step-by-step explanation:

Since there are two half circles, we just need to work to find the perimeter of a whole circle. The formula for the perimeter (circumference) of a circle:

[tex]C=2\pi r[/tex]

We need to know the radius to find the circumference. By studying the figure, we know that the length of the entire shape is 12 ft. We also know that on either side of the half circles, the length is 3 ft. If we divide 12 by 3, we see that the total length of 12 ft can be broken into 4 parts, each measuring 3 ft. The radius is half the diameter, so the radius is 3. Insert the values:

[tex]C=2*3.14*3[/tex]

Simplify:

[tex]C=18.84[/tex]

Now add the values of the exposed parts of the rectangle:

[tex]18.84+3+3+3+3+3+3=36.84[/tex]

The perimeter is 36.84.

:Done

No Solutions
2x + 9 + 3x +2=
C+
One Solution
2x + 9 + 32 +2=
2+
Infinitely Many Solutions
2x + 9 + 3x + x =
2 +

Answers

Answer:

so for the x it will be 6x to get no solution

Step-by-step explanation:

see if you add 2x+3x+x you get 6x for getting no solution you have to subtract from same number which will be 6x

HElp THIS IS hard please!

Answers

Answer:

2750

Step-by-step explanation:

so the sum of all the numers is 200, so lets divide the number we need, 22, in half leaving us with 11

11% of 25,000 is 2750

Will mark brainliest.

Answers

Answer:

23.6

20characyersnx xmxm

Step-by-step explanation:

Area=bh=5.9*4=23.6in.²

BC =
Round your answer to the nearest hundredth.

Answers

Answer:

Since its a right triangle you automatically know the C is 90 degrees. And since all triangle have to add up to 180 degrees, you know B has to equal 40 degrees.

A= 50

B= 40

C= 90

B + C

40 + 90

BC = 130 degrees

Answer:

2.3

Step-by-step explanation:

Khan

Draw the shape described below and find its total surface area.
A cylinder 25 ft tall with a diameter of 12 f

Answers

Answer:

hope this helps :)

Step-by-step explanation:

8:07

Cylinder volume & surface area (video)

I really need help 6TH GRADE MATH (Photo Attached) 2 Questions Thank you​

Answers

Answer:

1) 90!

2) False

Step-by-step explanation:

Had to think about this one for a bit

but i hope this helps

Answer:

1. 86

2. false

Step-by-step explanation:

PZZZZZZZZZ HELP ME I AM TIMED

Answers

Answer:

6 feet

Step-by-step explanation:

Look at the attachment

6 feet that is the answer

What is the equation, in point-slope form, of the line that is
parallel to the given line and passes through the point (-3,
1)?


1.y-13-3(x+3)
2.y-1=-{(x+3)
3.y-1= {(x+3)
4. y- 1=(x + 3)​

Answers

Answer:

The second equation in attached picture

Step-by-step explanation:

Since the slope of the given line is 3/2, then you take the negative reciprocal, which is -2/3. So the second equation in your attached picture is correct.

solve for x
3(x+2)=5x-7
give your answer as an improper fraction

Answers

Answer:

13/2

Step-by-step explanation:

3x+6=5x-7

2x=13

13/2

3x+6=5x-7
6=2x-7
6+7=2x
13=2x

Move the 2 under the 13 to get your answer
13/2

Suppose the length of an oarfish is normally distributed with a mean of 6.5 m and a standard deviation of 1.5 m. Which group describes 16% of the oarfish population? Select each correct answer. oarfish that are between 6.5 m and 9.5 m oarfish that are shorter than 5 m oarfish that are between 3.5 m and 9.5 m oarfish that are longer than 8 m

Answers

Answer:

Step-by-step explanation:

Let x be the random variable representing the length of an oarfish. Since it is normally distributed and the population mean and population standard deviation are known, we would apply the formula,

z = (x - µ)/σ

Where

x = sample mean

µ = population mean

σ = standard deviation

The given probability value is 16% = 0.16. From the normal distribution table, the z score corresponding to the probability value is - 0.99

This indicates that the sample mean is lower than the population mean

Therefore,

- 0.99 = (x - 6.5)/1.5

- 0.99 × 1.5 = x - 6.5

- 1.5 = x - 6.5

x = - 1.5 + 6.5

x = 5m

The correct answer is

oarfish that are shorter than 5 m

Answer:

oarfish that are shorter than 5

oarfish that are longer than 8 m

I Just took the test!

Which expression can be used to find the surface area of the following rectangular prism?

Answers

Answer:

d

Step-by-step explanation:

to find the surface area you have to add all the following numbers and double them

hope this helps

Answer:

D, if it is correct plz say thanks to let me know it is correct

Step-by-step explanation:

Math question down below

Answers

Answer:

12 large books

Step-by-step explanation:

please help , 20 points

Answers

Answer:

C

Step-by-step explanation:

10% as a decimal is .10, or .1. This has to be added to the original wage, 1 (100%) so its 1.1

Solve the system of equations.
- 4x + 1ly = 15
x = 2y​

Answers

-4x+11y=15
x=2y

-4(2y)+11y=15
-8y+11y=15
-3y=15
-3y/-3=15/-3
Y=-5

X=2y
X=2(-5)
X=-10

A quadratic has been factored, as shown below:

f(x) = (x − 6)(x + 5)

What are the zeros of the quadratic?
a
6 and −5
b
6 and 5
c
-6 and 5
d
-6 and -5

Answers

Answer:

a

Step-by-step explanation:

Given

f(x) = (x - 6)(x + 5)

To find the zeros, let f(x) = 0, that is

(x - 6)(x + 5) = 0

Equate each factor to zero and solve for x

x - 6 = 0 ⇒ x = 6

x + 5 = 0 ⇒ x = - 5

4) The diameter of a circle is 32m. The radius is represented by 4(x + 2).
Part A: Write an equation you can use to find the value of x.
Part B: What is the value of x?

Answers

Answer:

The value of x is 2

Step-by-step explanation:

Diameter = 2r -------------------------------------------------------------------(1)

where r is the radius

The value of the diameter = 32 m   and  radius is given to be 4(x+2)

substitute the above into equation (1)   and then solve for x

32  =  2 [ 4(x + 2)]

first open the inner bracket

32 = 2[4x + 8}

then open the outer bracket

32 = 8x + 16

subtract 16 from both-side of the equation

32 - 16 = 8x +16 - 16

16 = 8x

Divide both-side of the equation by 8

16/8  = 8x/8

2 = x

x = 2

Therefore, the value of x is 2

A crate containing 16 bags of powdered milk weighs of 63.2 lbs. The weight of the empty crate is 2.4 lbs. Select all equations that can be solved to find the weight of one bag of powdered milk.
1. 63.2 = 18.4b
2. 63.2 = 2.4 + 16b
3. 60.8 = 16b
4. b = 60.8/16
5. 60.8b = 16

thank you <3

Answers

Answer:

2, 3 , 4

Step-by-step explanation:

A crate containing 16 bags of powdered milk weighs of 63.2 lbs.

The weight of the empty crate is 2.4 lbs

The weight of the milk by itself is the difference of full and empty crate 63.2 - 2.4 = 60.8

To find  the weight of one bag of powdered milk divide 60.8 by 16 = 3.8 lb

What is the solution to the equation below?
logg x = 4

Answers

Anwser is b

Because I just did the same quiz

Step by step solution needed ASAP

Answers

Answer:

±16

The principle value is 16

Step-by-step explanation:

sqrt(8) * sqrt(32)

We know that sqrt(a) sqrt(b) = sqrt(ab)

sqrt(8*32)

sqrt(256)

sqrt(16*16)

±16

The principle value is 16

Answer: 16

Step-by-step explanation:

[tex]\sqrt{8} *\sqrt{32}[/tex]

Combine

[tex]\sqrt{256}[/tex]

Simplify by finding the greatest perfect square

[tex]\sqrt{4*64}[/tex]

[tex]16[/tex]

Hope this makes sense

y=|x| (What is the range of this function?)

Answers

Answer:

Any number both positive or negative.

y = {all numbers}

Step-by-step explanation:

Answer:Any number both positive or negative.

Step-by-step explanation:y=(all numbers)

Find the area to the nearest hundredth

Answers

Answer:

9.0586 OR

9.06

Step-by-step explanation:

IDK, used fusion 360

I need help with this please ASAP!!!!

Answers

Answer:

C, 9.4

Step-by-step explanation:

Gia’s gross annual salary is $46,392.

What is the recommended maximum monthly rent she should pay?


$1082


$1648


$1933

Answers

Answer: I think it might be 1933.

Step-by-step explanation

I hope it helped if not sorry. :/

can someone explain to me how to do this and give me the answer please?​

Answers

Answer:

To find x, y, z, p and q, you need to know about the property of Rhombus.

13y + 10 = 7y + 16 (pair of equal opposite sides)

=> 6y = 6

=> y = 1

x = 7x + 16 (2 equal adjacent sides)

  = 7*1 + 16

  =23

z = 90 deg (angle between 2 diagonals)

q = 22 deg (isosceles triangle)

p = 90 - 22 = 68 deg (right triangle)

Consider the following polynomial.
-2xys + 3x? - 10x°y6 + 8x + 4
Which of the following statements are true? Select all that apply.
-The polynomial has 5 terms.
-The leading coefficient is -2.
.
-The degree of the polynomial is 7.
-The constant term is 4.
-The polynomial is in decreasing degree order.

Answers

Answer:

Step-by-step explanation:

If you write correctly:

[tex]P = -2xys+3x? - 10xy^{6} +8x+4\\[/tex]

I do not know the "?" in the formule de P

-The polynomial has 5 terms.  Yes

-The leading coefficient is -2. No

.

-The degree of the polynomial is 7.  Yes

-The constant term is 4.  Yes

-The polynomial is in decreasing degree order. No

A manufacturer finds that the life expectancy of its best selling model of dishwashers is 11 years and the standard deviation is one year. The lifespans are approximately normally distributed . What percent of dishwasher models skill last from 9-13 years? A. About 68%. B.about 95%. C. About 34 percent. D. About 47.5 percent

Answers

D About 47.5 percent

HELLPP
The graph of the function f (x) and the transformer graph f(x)+k are shown below

Answers

Answer:

The point of the curve on the bottom line.

Step-by-step explanation:

I think it is the point/middle of the curve on the bottom line that is the answer. I cannot give specific numbers or anything because of how unfocused the camera is. I hope this helped in any way.

The circumference of a lacrosse ball is 8 in. Find its volume to the nearest tenth of a cubic inch.

Answers

Answer:

V = 8.6 in^3

Step-by-step explanation:

The circumference is given by

C = 2 * pi *r

8 = 2 * pi *r

Divide each side by 2pi

8 /2pi = r

Using 3.14 for pi

1.27388535 = r

The volume of a sphere is given by

V = 4/3 pi r^3

V = 4/3 (3.14) (1.27388535)^3

V =8.654847391

To the nearest tenth

V = 8.6 in^3

Which best describes the construction Marsha is doing?

Answers

Answer:

Awesome construction

Step-by-step explanation:

Marsha is building the construction pictured with a straightedge and compass. Marsha is building a line through P that is perpendicular to the line​. Thus, option (d) is correct.

What is construction?

The term construction refers to constructed the lines. It was the creation of an abstract entity. It was the mainly used in the math, art, and science. It was the accurate form of the lines in geometry, angles, and the drawings of shapes. It used the ruler and the compasses.

According to the Marsha is using straightedge and compass to do the construction as the line on the line through P perpendicular to line. It was the converted to the equation ax + by + c = 0. Perpendicular lines are those lines rays or segments on the intersect to form right angles.

As a result, the significance of the construction Marsha is doing a line through P perpendicular to line are the aforementioned. Therefore, option (d) is correct.

Learn more about on construction, here:

https://brainly.com/question/29775584

#SPJ6

Your question is incomplete, but most probably the full question was.

Marsha is using straightedge and compass to do the construction shown. Which best describes the construction Marsha is doing?a. A line through P parallel to line b. A line through P intersecting line !c. A line through P congruent to line! d. A line through P perpendicular to line!​.

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