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
Arlecino [84]
3 years ago
8

Please help! Will mark brainliest!

Mathematics
1 answer:
Volgvan3 years ago
4 0
Slope=3, Y-intercept=(0,-1)
You might be interested in
When a gas changes into a liquid, it is called ____________, and the speed of the molecules is ___________. A. condensation; inc
saul85 [17]

Answer:

condensation, decreases trust me is right

Step-by-step explanation:

7 0
3 years ago
-5(t + 6) + 7t = 100
Mila [183]
Use distribution
-5t - 30 + 7t = 100
Combine like terms
2t - 30 = 100
Add 30 to both sides
2t = 130, t = 65
Solution: t = 65
3 0
3 years ago
PLS HELP<br> If f(x) = x2 -1, what is the equation for f–1(x)?
Anon25 [30]

We have a function,

f(x)=x^2-1

and we are asked to find its inverse function.

An inverse function essentially gets you the original value that was dropped into a function.

For example,

If I put 5 into f(x) I will get 24. Now If I take 24 and put it into the inverse function I have to get number 5 back.

The way to determine the inverse function swap the x and the f(x), then solve for f(x),

x=f(x)^2-1

f(x)^2=x+1

f(x)=\pm\sqrt{x+1}

Of course the notation demands that the obtained function be called,

f^{-1}(x)=\pm\sqrt{x+1}

Hope this helps :)

6 0
2 years ago
Whats the rules of keep change flip
antiseptic1488 [7]
With Fractions? For example in 1/2 divided by 2/3 what you do is you leave the first fraction alone so it stays 1/2, then you change the sign from divide to multiply so it becomes 1/2 x by and then you take the next fraction and flip it upside down so 2/3 becomes 3/2. So 1/2 divided by 2/3 becomes 1/2 x 3/2. Only works with divisions
5 0
3 years ago
3. You invested $11,000 in stocks and bonds paying 5% and 8% annual interest. If the total interest for the year was $730, how m
castortr0y [4]

9514 1404 393

Answer:

  3. $6000 at 8%; $5000 at 5%

  4. 66 2/3 gallons of 9%; 133 1/3 gallons of 6%

Step-by-step explanation:

For many mixture problems, it works well to let a variable represent the amount of the largest contributor used in the mix.

3. Let x represent the amount invested at 8%. Then the total interest is ...

  8%x +5%(11000-x) = 730

  3%x = 730 -550

  x = 180/0.03 = 6000

$6000 was invested at 8%; $5000 was invested at 5%.

__

4. Let x represent the number of gallons of 9% content. Then the alcohol content of the mix is ...

  9%x +6%(200 -x) = 7%(200)

  3%x = 1%(200) . . . . . subtract 6%(200)

  x = 200/3 = 66 2/3 . . . . . divide by 3%

  200 -x = 133 1/3

66 2/3 gallons of 9% wine and 133 1/3 gallons of 6% wine should be used.

5 0
3 years ago
Other questions:
  • A finance magazine did a survey and found that the average American family spends $1,600 on a summer vacation. If the distributi
    10·1 answer
  • (40 points)
    13·1 answer
  • Consider the equation y=4x what is the value of 4x when x=8
    10·2 answers
  • A line passes through the point A(5/6​,−7) and has a slope of 3. Using the point-slope formula, express the equation of the line
    14·1 answer
  • 70 points !!! <br>pls show work
    5·2 answers
  • Complete the equation that is related to the given equation.
    6·1 answer
  • 4*4^7 answer in one exponet
    11·1 answer
  • Evaluate: 2-^4=<br> A.1/16<br> B.1/8<br> c. -8<br> D.-16
    11·1 answer
  • How do you do 3++3 because i need help with this. I am learning this and are confused
    14·1 answer
  • Determine the range of the following graph:
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!