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
choli [55]
3 years ago
15

Evaluate 21 - n for n = 3 * please help me with this

Mathematics
2 answers:
Alinara [238K]3 years ago
8 0
21-3=18 because n=3 and you’re just subtracting
qwelly [4]3 years ago
4 0

Answer:

18

Step-by-step explanation:

21-n; n=3

Substitute n for 3:

  • 21-3

Solve.

  • 18
You might be interested in
What is the remainder when 6x^4-3x^5+2x^3+x-3 is divided by x+1
Svetlanka [38]

The remainder is 3 when we need to divide 6x^4-3x^5+2x^3+x-3\,\,by \,\,x+1

Step-by-step explanation:

We need to divide 6x^4-3x^5+2x^3+x-3\,\,by \,\,x+1 and find the remainder

Dividing:

The division is shown in figure below:

The quotient is:-3x^4+9x^3-7x^2+7x-6

The remainder is: 3

So, The remainder is 3 when we need to divide 6x^4-3x^5+2x^3+x-3\,\,by \,\,x+1

Keywords: Division of Polynomials

Learn more about Division of Polynomials at:

  • brainly.com/question/629998
  • brainly.com/question/4528757
  • brainly.com/question/5022643

#learnwithBrainly

5 0
3 years ago
Given: g(x)=1/x+2 and h(x)=3x Check all restrictions on the domain of gOh.
Vlad [161]

The composite function (g \circle h)(x) works like this:

  • Take a number x as input
  • Evaluate h(x) = 3x. Let's call this output z.
  • Evaluate g(x) = 1/(z+2)

So, if we substitute back z = 3x, the final output is 1/(3x+2). We know that the denominator of a fraction can't be zero, so we must impose

3x+2 \neq 0 \iff 3x \neq -2 \iff x \neq -\dfrac{2}{3}

3 0
3 years ago
Read 2 more answers
Solve:<br> 5y + 3y +1+1 = 2y + 6y +6 +2
lozanna [386]

Answer:

0=6

There are no solutions to this answer.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
In ΔEFG, the measure of ∠G=90°, the measure of ∠E=6°, and GE = 71 feet. Find the length of EF to the nearest tenth of a foot.
djyliett [7]

Answer:68.2

Step-by-step explanation:

cos6=71/EF

cos6= 0.960170286650366

0.960170286650366= 71/EF

0.960170286650366*71=EF

EF= 68.2

3 0
3 years ago
Read 2 more answers
2. Tom makes $50 a day, 5 days a week. If his rent every four weeks was $500, what is
Hunter-Best [27]
His overall net profit would be $500 dollars because every two weeks he makes $500 so over 4 weeks he would make $1000, but lose $500 to rent.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Help!! @mathmate help needed! I need step by step please
    12·1 answer
  • A number cube is rolled 360 times, and the results are recorded as follows: 61 ones, 26 twos, 36 threes, 76 fours,73 fives, and
    5·1 answer
  • I need helpppppppppp
    12·1 answer
  • Find the value of x.<br>a. 23°<br>b. 124° <br>c. 33°<br>d. 45°​
    9·2 answers
  • X+8&gt;5 is the inequality for my previous question
    12·1 answer
  • 10
    13·2 answers
  • Juan read 15 books in 9 months. How many books did he read in 24 months? And how many months did it take him to read 5 books?
    13·2 answers
  • What is the slope of the line through the points (-2, -1) and (4, 3)?<br> HELP ITS FOR AN EXAM
    15·1 answer
  • Select all pairs of complementary angles in the diagram.
    14·1 answer
  • Is the triangle with the lengths of 6, 7, and 9 a right triangle? (show work using Pythagorean theorem) Need to write the number
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!