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
ohaa [14]
3 years ago
12

Rewrite y=4-2x in slope-intercept form.

Mathematics
1 answer:
Sindrei [870]3 years ago
5 0
This is already in slope intercept from. because the slope is -2 and the y intercept is 4. so if you put it in stander form you would get y=-2x+4 
You might be interested in
Subtract 6 from me. Then multiply by 2. If you subtract 40 and then divide by 4, you get 8. What number am I?
aliina [53]

Answer:

42

Step-by-step explanation:

Let the number be "x"

We translate the word equation to algebraic equation.

First,

subtract 6 from me, so we have:

x - 6

Now,

Multiply by 2, so we have:

2(x-6)

Now,

Subtract 40, then divide by 4:

\frac{2(x-6)-40}{4}

Now, you get "8", so equate this to 8, we get:

\frac{2(x-6)-40}{4}=8

We now solve using algebra:

\frac{2(x-6)-40}{4}=8\\2(x-6)-40=4*8\\2(x-6)-40=32\\2x-12-40=32\\2x-52=32\\2x=32+52\\2x=84\\x=42

The number is 42

7 0
3 years ago
The total cost to rent a row boat is $14 times the number of hours the boat is used. Write an equation to model this situation i
Scrat [10]

The total cost is c the you just multiply 14 by the number of hours so it would be C=$14h

6 0
3 years ago
Strontium-90 has a half-life of about 29 years. After 65 years, about how many grams of a 25-gram sample will remain?
konstantin123 [22]

Answer:

Ending Amount = Beginning Amount / 2 ^ n

where 'n' = number of half-lives n = 65 / 29 = 2.2413793103

Ending Amount = 25 g / 2^2.2413793103

Ending Amount = 25 / 4.7284892286

Ending Amount = 5.2871009727  g = 5.29 g (rounded)

Step-by-step explanation:

3 0
3 years ago
In the set of real numbers, the first number greater than -4 is -3.<br> true or false?
aniked [119]

Answer:

........ true ...

obviously -3 is greater than -4

3 0
2 years ago
Read 2 more answers
Use the discriminant to determine the number of solutions to the quadratic equation 3x^2+5x=-1
kari74 [83]

Answer:

Two real distinct solutions

Step-by-step explanation:

Hi there!

<u>Background of the Discriminant</u>

The discriminant b^2-4ac applies to quadratic equations when they are organised in standard form: ax^2+bx+c=0.

All quadratic equations can be solved with the quadratic formula: x = \frac{{ - b \pm \sqrt {b^2 - 4ac} }}{{2a}}}.

When b^2-4ac is positive, it is possible to take its square root and end up with two real, distinct values of x.

When it is zero, we won't be taking the square root at all and we will end up with two real solutions that are equal, or just one solution.

When it is negative, it is impossible to take the square root and we will end up with two non-real solutions.

<u>Solving the Problem</u>

<u />3x^2+5x=-1<u />

We're given the above equation. It hasn't been organised completely in ax^2+bx+c=0, but we can change that by adding 1 to both sides to make the right side equal to 0:

3x^2+5x+1=0<u />

Now that we can identify the values of a, b and c, we can plug them into the discriminant:

D=b^2-4ac\\D=(5)^2-4(3)(1)\\D=25-4(3)(1)\\D=25-12\\D=13

Therefore, because the discriminant is positive, the equation has two real, distinct solutions.

I hope this helps!

4 0
3 years ago
Other questions:
  • HELP ASAP Which list is in order from least to greatest
    13·2 answers
  • 18:63,14:39,6:21,and 2:7 which of the ratios is not equivalent to 10:35
    13·1 answer
  • Ships A and B are 1,425 feet apart and detect a submarine below them. The angle of depression from ship A to the submarine is 59
    8·2 answers
  • Will mark Brainliest <br><br> What is the value of 2 x^ 3+ x ^2 - x when x = 3?
    6·1 answer
  • If a1=47 and d=-5 find a12
    6·1 answer
  • When solving the equation such as 3/5x = 1/9 , why would you multiply both sides of the equation by the reciprocal of 3/5 ?
    15·1 answer
  • Solve for the variable in 7⁄28 = 25⁄x A. 20 B. 100 C. 4 D. 5
    12·2 answers
  • This might take forever but I’ll mark u as brainlist!! This is due tomorrow lol
    12·1 answer
  • Need help ill pay a lot just do my math test. answer every question
    13·1 answer
  • The sum of three numbers is 50. The second number is three times the first number in the third number is twice the second number
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!