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
xeze [42]
3 years ago
10

Evaluate 2x-y for x=3 and y= -2 A. 10 B. 14 C. 18 D. 20

Mathematics
1 answer:
USPshnik [31]3 years ago
8 0
The answer is C
2(3)-(-2)
6+2
8
You might be interested in
Solve and round to the nearest hundredth 24.5 = - 2.5c - 4c
Deffense [45]

Answer:

The answer is -3.76923076923 but to the nearest hundredth it is -3.77

6 0
3 years ago
I need help ASAP!!
Studentka2010 [4]

Answer:

  D.  (x-5)^2 = 36

Step-by-step explanation:

If you add 11 to the given equation, you get ...

  x^2 -10x = 11

Then you can add the square of half the x-coefficient to complete the square.

  x^2 -10x +25 = 11 +25

  (x -5)^2 = 36 . . . . simplify to the appropriate form

5 0
3 years ago
Find the 13th term of the arithmetic sequence -3x+7, -5x+3, -7x-1, ...
oksano4ka [1.4K]

Answer:

a₁₃ = - 27x - 41

Step-by-step explanation:

The nth term of an arithmetic sequence is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = - 3x + 7

d = a₂ - a₁ = - 5x + 3 - (- 3x + 7)

                 = - 5x + 3 + 3x - 7

                 = - 2x - 4

Then

a₁₃ = - 3x + 7 + 12(- 2x - 4)

     = - 3x + 7 - 24x - 48

     = - 27x - 41

3 0
3 years ago
HELP ILL GIVE 80 AND BRAINLIEST
kompoz [17]

Answer:

288 sq feet is my best guess

Step-by-step explanation:

6 0
3 years ago
Solve the equation
inysia [295]

Answer:

x ≈ 1.32, x ≈ - 5.32

Step-by-step explanation:

Given

x² + 4x - 7 = 0 ( add 7 to both sides )

x² + 4x = 7

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(2)x + 4 = 7 + 4

(x + 2)² = 11 ( take the square root of both sides )

x + 2 = ± \sqrt11} ( subtract 2 from both sides )

x = - 2 ± \sqrt{11}

Thus

x = - 2 - \sqrt{11} ≈ - 5.32 ( to 2 dec. places )

x = - 2 + \sqrt{11} ≈ 1.32 ( to 2 dec. places )

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the solution to x2 + 10x + 28 = 0 when written in the form a ± bi?
    9·2 answers
  • QUIZ
    12·1 answer
  • What is an example of when you might need to use decimals and other rational numbers in everyday life?
    10·1 answer
  • 2. Solve the equation p2 + 6p = 1 by completing the square method. Show your work.
    7·1 answer
  • *TWO QUESTIONS IN ONE*
    14·1 answer
  • Chang knows one side of a triangle is 13 cm. Which set of two sides iS possible for the lengths of the other two sides
    12·1 answer
  • Math word problem, please help!!
    13·2 answers
  • I’ll give out brainliest to whoever explains this.
    14·1 answer
  • The answer to this, i don’t understand it
    5·2 answers
  • This is easy but I’m a bit slow PLS HELP IMAO
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!