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
Brut [27]
3 years ago
5

How can I make this a perfect square w^2-4w+

Mathematics
1 answer:
Neporo4naja [7]3 years ago
8 0
Ax^2+bx+c
if a=1, then
take 1/2 of b and square it

w^2-4w+c
b=-4
-4/2=-2, (-2)^2=4
add that
w^2-4w+4
(w-2)(w-2)
(w-2)^2

to make it into perfect squres, add 4
You might be interested in
Select the expression that is equivalent to (picture)
seraphim [82]
The answer to this question is x^(rt + s) since (x^r)^t becomes x^(rt) by the exponent power of a power property. Then multiplying powers of the same base results in the exponents being summed.
6 0
3 years ago
Y = -8<br><br> Y = -2x - 12 <br><br> Solve this equation by substitution
aliina [53]

Answer:

x = - 2

Step-by-step explanation:

- 8 = - 2x - 12

- 8 + 12 = - 2x - 12 + 12

- 2x = 4

- 2x ÷ - 2 = 4 ÷ - 2

x = - 2

5 0
3 years ago
Find 5x9 and 1x9, and add the answers.
kipiarov [429]
5*9=45
1*9=9
Then add both numbers together
45+9=54
4 0
3 years ago
Read 2 more answers
Ruth borrowed a book from a library. The library charged a fixed rental for the book and a late fee for every day the book was o
DIA [1.3K]

Answer: The second term of the expression which is 0.25x is the variable cost which is the extra amount paid for being late.

The expression 2 + 0.25x represents the amount that Ruth paid for the book.

It should be noted that the fixed cost is represented by 2 while the 0.25 represents the variable cost which is the late fee. Also, the x represented the number of days for being late.

In conclusion, the second term of the expression represents the amount that was charged for being late.

7 0
3 years ago
The angle of elevation from a soccer ball on the ground to the top of the goal is 34. If the goal is 8 ft tall, what is the dist
Nastasia [14]
You can use the Pythagorean Theorem. Which is a^2 + b^2 = c^2.

So now to plug in the equation.

In your case a is 8 and c is 34. So now we need to solve for b.


8 squared is equal to 64.
34 squared is equal to 1156.

Now to plug things in.

64 + b^2 = 1156

Now subtract 64 from 1156.

That equals 1092.
The equation is now

b^2 = 1092

Now do the square root of 1092.

But since the square root is an irrational number you can just write b = 1092 ( but put a square root with 1092)
8 0
4 years ago
Other questions:
  • Find the exact value of the expression.<br> tan( sin−1 (2/3)− cos−1(1/7))
    7·1 answer
  • Mary mixed 8 L cranberry juice into 5L of apple juice that had 30% sugar . if the cranapple mixture was 35% sugar what was the p
    6·1 answer
  • Help please!!! really really important​
    6·1 answer
  •  In a survey of 2,900 people who owned a certain type of​ car, 1,015 said they would buy that type of car again. What percent of
    8·1 answer
  • Find the slope of a line that passes through (-4,-5) and (-3,5)
    5·1 answer
  •  Given that 3^10 = 59 049 , what is 3^-10 expressed as an exact value?
    9·1 answer
  • Help I'm desperate it's near midnight and assignment due tomorrow rip me
    9·1 answer
  • 7. A general cone has base area 3 units2. Find the area of the slice of the cone that is parallel to the base and 2/ 3 of the wa
    6·1 answer
  • ANYONE HELP FOR THESE AND CAN U EXPLAIN HOW TO DO IT
    7·1 answer
  • Four plumbers estimated the length of the radius of a cylindrical pipe. the estimates made by the plumbers are listed. • plumb
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!