1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sidana [21]
3 years ago
7

(23+8x-x²)+(x³+x²+34-18x)

Mathematics
1 answer:
bearhunter [10]3 years ago
3 0

Answer:

x^3 -10x + 57

Step-by-step explanation:

You might be interested in
after the interview ,Ellen decided to hire two of the applicants and reject the others .Ellen's assistant called back the applic
Elden [556K]

Answer:

40 + 2r

Step-by-step explanation:

Well an hour has 60 minutes.

So 60 x 1/30 = 60/30 = 2 minutes for each person that didn't get into the job

60 x 1/3 = 60/3 = 20 minutes for the people that made it into the job.

20 x 2 = 40 minutes in total for the people that made it into the job.

We don't know how much people got rejected so:

The answer is

40 + 2r

7 0
2 years ago
Use trigonometric identities to solve the trigonometric equation sin(2∅)-cos(∅)=0 for 0≤∅≤2π. You must show all of your work ana
SOVA2 [1]

Step-by-step explanation:

sin(2x) = 2sin(x)cos(x)

2sin(x)cos(x) - cos(x) = 0

so one solution is cos(x) = 0.

=> x = pi/2 and 3pi/2 (90° and 270°)

for cos(x) <> 0 we have then

2sin(x) - 1 = 0

2sin(x) = 1

sin(x) = 1/2

=> x = pi/6 and 5pi/6 (30° and 150°)

3 0
2 years ago
Steve is three more than 5 times as old as his cousin. If the sum of their ages is 21, how old is Kia's cousin? Solve and write
DerKrebs [107]

Answer:

34

Step-by-step explanation:

Cause it is right

8 0
3 years ago
I don’t know how to do this. HELP!
Karo-lina-s [1.5K]

Answer:

1/4

Step-by-step explanation:

coins have 2 sides, tails and heads, so for it to land on tails is a 1/2 chance. Dice have 6 sides and 1,3,5 are all odd so its a 3/6 chance. Simplify 3/6 to 1/2 and multiply by 1/2 to get 1/4. im not sure, its my guess.

3 0
3 years ago
For what values of x is the trinomial 2x^2-x+55 equal to the square of binomial x+5
jeka94

Answer:

x = 6 , 5. For these values of x they are equal.

Step-by-step explanation:

2x²  - x + 55 =(x +5)²

2x² - x + 55 = x² + 2*x*5 + 5²

2x² - x + 55 = x² + 10x + 25

2x² - x + 55 - x²  - 10x - 25 = 0

2x² - x² - x - 10x + 55 - 25 = 0

x² - 11x + 30 = 0

x² -6x - 5x  + 30 = 0

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

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

x - 6 = 0 ;  x - 5 = 0

x = 6      ;      x = 5

7 0
3 years ago
Read 2 more answers
Other questions:
  • a circular yard has a radius of 20 meters, i need to find the circumfrence, what's the circumfrence and how do i find it?
    15·1 answer
  • A cyclindrical tank is half full of oil]
    7·1 answer
  • HELP PLEASEEE 9th Grade Geometry
    12·1 answer
  • Jackson bought 5 ounces of raisins for $4, how many ounces cna he buy for $1.
    8·2 answers
  • Round this number to the nearest 100 4,398,202
    14·1 answer
  • I picked the second one, was I correct?
    13·2 answers
  • What are two ways 4 people can split 6 segments
    8·2 answers
  • What are the steps for 625 to the power of 3/4
    5·2 answers
  • En una competición participan 200 atletas, 2/5 son españoles, 1/3 del resto son franceses, 35 son alemanes y el resto son ingles
    14·1 answer
  • What a deal! Just deShirts is having a 20% off sale. Trixie rushes to the store and buys 14 shirts. When the clerk rings up her
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!