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
siniylev [52]
2 years ago
12

A) Complete the table of values for y = 6 - 2x 0 1 2 3 4 5 -4

Mathematics
1 answer:
andreyandreev [35.5K]2 years ago
6 0

Answer:

0

2

4

1

5

44

Step-by-step explanation:

mark brainliest

You might be interested in
Match each addition operation to the correct sum. 0 0.65 more than -4.35 -3.66 1.98 added to 3.13 5.11 4.34 added to -8 -3.70 9.
Salsk061 [2.6K]

Answer:

THIS IS TOO CONFUSING

Step-by-step explanation:

3 0
3 years ago
A shipment includes several different types of apples, as shown below.
andrey2020 [161]
Your answer is going to be 23% :)

5 0
3 years ago
Read 2 more answers
Add 7 and 3 then multiply 8?<br><br> interpreting numerical expressions
xenn [34]
If I'm understanding the question correctly, 7+3=10. 10*8=80.
4 0
3 years ago
Read 2 more answers
Meghan needs to board her cats and dogs at a kennel while she's on vacation. Pet Hotel charges $42.50 for a cat and $64.00 for a
Alex Ar [27]

Answer:

3 dogs and 2 cats.

Step-by-step explanation:

In this case we can solve it using a 2x2 system of equations, like this:

let x: number of cats

let y: number of dogs

So:

42.5 * x + 64 * y = 277

35.5 * x + 50.5 * y = 222.5 => x = (222.5 - 50.5 * y) /35.5

Replacing, we are left with that:

42.5 * (222.5 - 50.5 * y) /35.5 + 64 * y = 277

266.37- 60.45 * y + 64 * y = 277

64 * y - 60.45 * y = 277 - 266.37

3.55 * y = 10.63

y = 10.63 / 3.55

y = 2.99, about 3

Now to calculate x:

x = (222.5 - 50.5 * 3) /35.5

x = 2

Which means that it has a total of 3 dogs and 2 cats.

3 0
3 years ago
Read 2 more answers
Not sure what to do here can someone please help
kumpel [21]

Answer:

  x = 2

Step-by-step explanation:

These equations are solved easily using a graphing calculator. The attachment shows the one solution is x=2.

__

<h3>Squaring</h3>

The usual way to solve these algebraically is to isolate radicals and square the equation until the radicals go away. Then solve the resulting polynomial. Here, that results in a quadratic with two solutions. One of those is extraneous, as is often the case when this solution method is used.

  \sqrt{x+2}+1=\sqrt{3x+3}\qquad\text{given}\\\\(x+2)+2\sqrt{x+2}+1=3x+3\qquad\text{square both sides}\\\\2\sqrt{x+2}=(3x+3)-(x+3)=2x\qquad\text{isolate the root term}\\\\x+2=x^2\qquad\text{divide by 2, square both sides}\\\\x^2-x-2=0\qquad\text{write in standard form}\\\\(x-2)(x+1)=0\qquad\text{factor}

The solutions to this equation are the values of x that make the factors zero: x=2 and x=-1. When we check these in the original equation, we find that x=-1 does not work. It is an extraneous solution.

  x = -1: √(-1+2) +1 = √(3(-1)+3)   ⇒   1+1 = 0 . . . . not true

  x = 2: √(2+2) +1 = √(3(2) +3)   ⇒   2 +1 = 3 . . . . true . . . x = 2 is the solution

__

<h3>Substitution</h3>

Another way to solve this is using substitution for one of the radicals. We choose ...

  u=\sqrt{x+2}\qquad\text{requires $u\ge0$}\\\\u^2-2=x\qquad\text{solve for x}\\\\u+1=\sqrt{3(u^2-2)+3}\qquad\text{substitute for x in the original equation}\\\\(u+1)^2=3u^2-3\qquad\text{square both sides, simplify a little}\\\\2u^2-2u-4=0\qquad\text{subtract $(u+1)^2$}\\\\2(u-2)(u+1)=0\qquad\text{factor}

Solutions to this equation are ...

  u = 2, u = -1 . . . . . . the above restriction on u mean u=-1 is not a solution

The value of x is ...

  x = u² -2 = 2² -2

  x = 2 . . . . the solution to the equation

_____

<em>Additional comment</em>

Using substitution may be a little more work, as you have to solve for x in terms of the substituted variable. It still requires two squarings: one to find the value of x in terms of u, and another to eliminate the remaining radical. The advantage seems to be that the extraneous solution is made more obvious by the restriction on the value of u.

6 0
2 years ago
Other questions:
  • A drawing of the flag of puerto rico is shown below. Assume that the triangle in the flag is isosceles as shown
    5·1 answer
  • Solve This equation and Show Work<br> 1/2d + 3/8 = -2d
    15·1 answer
  • Simplify the answer
    12·1 answer
  • HELP ME ASAP PLEASEEE!!!<br> Work out the size of angle x.<br> 20° 165° 33°
    7·2 answers
  • What is the coefficient of the variable in the expression 2 - 5x – 4 + 8?
    6·1 answer
  • Explain how a solution found using substitution can be checked.
    13·1 answer
  • Which of the following is a biased sample of the people who shop at a shoe store?
    7·1 answer
  • If you know that log5 (2) - log5 (12) = 0, which of the following is false?
    14·1 answer
  • The original cost of an item is $68, but you have to pay $76.16.
    9·1 answer
  • NNNNNNNNEED HELP!!!!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!