Choose the correct simplification of (7x^3 – 4x - 8) + (2x^3 + 3x + 2).​

Answers

Answer 1

Answer:

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

Step-by-step explanation:

Answer 2

Answer:

=9x3−x−6

Step-by-step explanation:

7x3−4x−8+2x3+3x+2


Related Questions

please hurry. 1. Calculate the grade point average: An A is considered 4.0, a B is 3.0, a C is 2.0, a D is 1.0, and an F is 0. If you received the following grades, what would be your grade point average? Round your answer to the hundredths place. Please show me how you got ur answer step by step
Course Credits Grade
Sociology 3.0 A
Calculus 4.0. F
New Student Seminar 1.0 C
Physics. 5.0. A

Answers

Answer:

b

Step-by-step explanation:

A submarine descended 3/4 of a kilometer in 1/4 of an hour. What was the submarine's rate of descent?

Answers

(3/4 km)/(1/4 hour) = (3 km)/hour

URGENT NEED ANSWERS •_•

Answers

9. 130 = x + 137
answer x = -7

10. 9x-3 = 4 + 8x
9x = 7 + 8x
answer x = 7

Anyone knows this one

Answers

Answer:

10 over 11

Step-by-step explanation:

Y2 minus Y1 over X2 minus X1

Answer:

10/11 or 10 over 11 rise

Step-by-step explanation:

Slope formula: (y2 - y1) / (x2 - x1)

(-20 - 0) / (-14 - 8)

(-20) / (-22)

= 10/11

Please answer ASAP!

Which proportional relationship has the greatest rate of change?

Answers

Answer:

Option (1)  ;   y = 7x

Step-by-step explanation:

(1) reads y = 7x, a line with slope 7, therefore the rate of change in this is 7

(2) says that y increases 12 units every time that x increases 4 Then the rate of change is: (increase in y / increase in x = 12/4 =3

(3) shows a table from which we can see that an increase of y in 8 corresponds to an increase of x in 2:  rate of change = (8 - 0) , (2 - 0) = 4

(4) shos a line with slope (rate of change) given by:  (12 - 0) / (2 - 0) = 12/2 = 6

Therefore, the greatest rate of change is shown by the first expression  

y = 7 x

Shannon drank 1/5 cup of milk
and 3/4 cup of water. How much
did she drink altogether?
Answer


Answers

Answer:

does it have to be simpilfied? if not:   19/20

Step-by-step explanation:

What is cot(ZB)?
Reduce fractional answers to lowest terms.
A
25
24
с 7

Answers

Answer:

cot∠B = 7/24

General Formulas and Concepts:

Math

Simplifying

Trigonometry

[Right Triangles Only] SOHCAHTOA[Right Triangles Only] cotθ = 1/tanθ = adjacent over opposite

Step-by-step explanation:

Step 1: Define

Angle θ = ∠B

Adjacent Leg = 7

Opposite Leg = 24

Step 2: Find

Substitute in variables [cotangent]:                                                                 cot∠B = 7/24

Plz help me!!
I have no clue how to do this because my teacher moves to fast for me. If you can help out that would be really appreciated!!

Answers

Answer:

1. x = 65

2. x = 40

3. x = -7

4. x = -4

5. x = -7

6. x = 4

Step-by-step explanation:

Angles in a triangle always add up to 180 degrees.

Thus, for each triangle you can write an equation setting the sum of the three angles equal to 180, and solving for x.

1. 180 = 80 + 35 + x

   180 - (80 + 35) = x

   180 - 115 = x

   65 = x

2. 180 = 70 + 70 + x

   180 - (70 + 70) = x

   180 - 140 = x

   40 = x

3.  180 = 76 + 41 + (x+ 70)

    180 - (76 + 41) = x + 70

    180 - 117 = x + 70

    63 = x + 70

    63 - 70 = x

    -7 = x    

4. (the red square means its a right angle = 90 degrees)

   180 = 90 + 25 + (x + 69)

   180 - (90 + 25) = x + 69

   180 - 115 = x + 69

   65 = x + 69

   65 - 69 = x

   x = -4

5. 180 = 50 + (57 +x) + (x + 87)

   180 - 50 = (57 +x) + (x + 87)

    130 = (57 +x) + (x + 87)

  combine like terms

  130 =  144 + 2x  

  130 - 144 = 2x

  -14 = 2x

   -7 = x

6. 180 = 80 + (9x + 4) + (16x - 4)

   180 - 80 = (9x + 4) + (16x - 4)

   100 = (9x + 4) + (16x - 4)

   combine like terms

    100 = 25x + 0

    100 = 25x

    4 = x

12. Given f(x) = x - 3 and g(x) = 4x, find g(f(x)).
A. 4x -3
B. 4x - 12
C. 5x - 3
D. 3x3

Answers

It's b. 4x-12
Just put f into g

What is - or how do you find answer to:
12 1/2 - (-4 1/2) =

Answers

Answer:

8

Step-by-step explanation:

12 times 1/2=6

(-4(1/2))= -2

6-(-2)

6+2

=8

I need the answer too all of these:

1. 7x + 1x = ?

2. 6 + 1 + 5x = ?

3. 4x + 7x + 3 - 2 = ?

4. 6x + 6 + 8 + 1x = ?

5. 7x - 7x + 2 = ?

6. 3x + 6 + 1x = ?

7. 8- 8x - 3 = ?

8. 2x - 5 + 2 =


HELP ASAPP ​

Answers

1. 8x
2.5x+7
3.11x+1
4.7x+15
5.2
6.4x+6
7.8x-11
8.2x-3
1.) 8x

2.) 7 + 5x

3.) 11x + 1

4.) 7x + 14

5.) 2

6.) 4x + 6

7.) 8x - 5

8.) 2x - 3

I need help once more (●'◡'●)

Answers

Answer:

3= 25 4= 20 25= 5

Step-by-step explanation:

its a pattern. the top goes up by ones and the bottom goes up by fives.

i dont know this help me

Answers

Me either only god can answer that one

What's the place value of 3 in 19.364?

Answers

Answer:

Tenths

Hope this helps :)

Answer:

tenths

Step-by-step explanation:

There is a quadrilateral with vertices A (-4,0), B (-3, 4), C (2,6), and D (2,3).
Is this a parallelogram?

Answers

No, i didn’t feel like graphing it out but it isn’t a parallelogram. It’s a trapezoid which isn’t parallelogram

Wheel I has diameter 24.9 in. Wheel II has diameter 21.0 in. Round the diameter of each wheel to the nearest inch. About how much farther will Wheel I travel in one​ rotation? Use 3.14 for π.

Answers

Answer:

76

Step-by-step explanation:

because the other guy said so

Tony wants to use his savings at the end of March to buy video games. The games cost $35.75 each. How many games can Tony buy

Answers

Answer:

how much money is he saving????

Step-by-step explanation:

Write the missing decimal so that each pair adds to 1/2 + ...= 1

Answers

Answer:

0.5

Step-by-step explanation:

1/2 + 0.5 = 1

I need help with math

Answers

Answer:

6:3

Step-by-step explanation:

what is the square root of 36

Answers

Answer:

6 !

Step-by-step explanation:

since 6 x 6 = 36, the square root is 6 !

square root is when u multiply two same numbers for the output... so like 49 would b 7, since 7 x 7 = 49 !!

im not sure if that makes any sense, but i hope it helps !!

Find the 18h term of the arithmetic sequence whose common difference is d=4 and whose first term is a, =3.

Answers

Answer:

the 18th term is 71

Step-by-step explanation:

The general form for any term "n" in an arithmetic sequence is:

a(n) = a1 + (n-1) * d

where "d" is the common difference.

So, in our case we have:

a(n) = 3 + (n-1) *4

Therefore, the 18th term will be:

a(18) = 3 + (18 - 1) 4 = 3 + 17 * 4 = 71

PLEASE HELP ME match the equations at the bottom of the screen to the graph.TYSM

Answers

Answer: It's given in the equations.

Step-by-step explanation:

First One

f(x) = -2^x

Second

f(x) = -4(2)^x

Third

f(x) = 4(2)^x

Fourth

f(x) = 2^x

The position of a particle on a straight line is given by s(t) = 3 – cos(t).
A. Find velocity and acceleration at t = 4.3 s.
Round your answers to 2 decimal(s).
v(t) =
a(t) =

Answers

Given the position function

s(t) = 3 - cos(t )

differentiate once to get the velocity, and twice to get the acceleration:

v(t) = s'(t) = sin(t )   →   v (4.3 s) ≈ -0.92

a(t) = s''(t) = v'(t) = cos(t )   →   a (4.3 s) ≈ -0.40

The acceleration is negative, so the particle is slowing down.

Harvey the wonder hamster can run 3 1/6 km in 1/4 hour. Harvey runs at a constant rate

Find his average speed in kilometers per hour.

Answers

Answer:

12 2/3 KMPH

Step-by-step explanation:

3 1/6 x 4 (reciprical of 1/4) = 12 2/3

30 %of 50 pidhdbdjduwywggdhfnfjrhdvdvdndjdjf​

Answers

Answer:

15

Step-by-step explanation:

50 x .3

Answer:15

Step-by-step explanation:

I need help plz due in 20 min

Answers

Answer:

No, because 2(3x-5)=6x-10, and 6x-10 is not equal to 6x-8

Step-by-step explanation:

Ana and her friends are decorating the gym for a dance. They need 270 balloons. The balloons are only sold un packages. Tere are 50 balloons in each package.

Answers

Answer:

Step-by-step explanation:

270 div

what is 900 * 158000​

Answers

Answer:

142,200,000

Step-by-step explanation:

Used Calculator

Answer:

142200000

Step-by-step explanation:

It's a really long answer

The value, y, in dollars of an autographed basketball after x years can be represented by the function y=4000(1.05)x.

What is the value of the basketball after 5 years to the nearest dollar?

Answers

Answer:

I took the test!!

Step-by-step explanation:

Pit this in your calculator exactly like this 4,000(1.05)^5 and you get the answer 5,105.12625. So round your answer to the nearest dollar, which is 5,105.

One number is seven more than six times another number. If the sum of the numbers is 21, find the numbers

Answers

Answer:the two numbers are 2 and 19

Step-by-step explanation:

Let one of the numbers be x

and the second be   7+ 6x

so that the sum of the two numbers which totals 21 be expressed as  

x + (7+ 6x) = 21

x+ 7+6x= 21

7 + 7x = 21

7x= 14

x= 14/7 = 2

one of the numbers = 2

the other number given as

7+ 6x = 7+ 6 x 2= 7+12= 19

The numbers are 2 and 19 .

The numbers as described in the question are; 2 and 19

Solving word problems

From the given problem statements;

The first number = y

The second number = x

Hence, y = (7 + 6x)

Their sum is therefore;

x + 7 = 6x = 21

7x = 14

x = 2

Hence, the second number is; 7 + 6x = 7 + 6(2);

y = 19

Read more on word problems;

https://brainly.com/question/21405634

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