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
dlinn [17]
3 years ago
14

What number should be added to the expression x^2 + 4x to change it into a perfect square trinomial?

Mathematics
2 answers:
Schach [20]3 years ago
8 0
X^2 + 4x
the number to be added is found by dividing the constant of x by 2
 and squared the number
so # to be added =  ( 4/2)²  =  4
the perfect square trinomial is
x² + 4x + 4    =    (x + 2 )²    which is a perfect square trinomial
I hope this help you
tiny-mole [99]3 years ago
3 0
He number that must be added is four because (x+2)^2=x^2+4x+4
You might be interested in
Write the equation in standard form of the line that
aleksklad [387]

Answer:

x+2y=0

Step-by-step explanation:

y-y1=m(x-x1)

y-(-2)=-1/2(x-4)

y+2=-1/2x+4/2

y+2=-1/2x+2

y-(-1/2x)=2-2

y+1/2x=0

1/2x+y=0

2(1/2x+y)=2(0)

x+2y=0

6 0
3 years ago
Chris is driving his car at a rate of 32 miles per hour. Albert is driving his car at a rate of 36 miles per hour. Both started
enot [183]

Answer:

Use the formula r = d/t. Your rate is 24 miles divided by 2 hours, so: r = 24 miles ÷ 2 hours = 12 miles per hour. Now let's say you rode your bike at a rate of 10 miles per hour for 4 hours.

Step-by-step explanation:

7 0
3 years ago
What is 4 1/2 times 3
Leya [2.2K]

Answer:

13.5

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
If you can buy 4⁄5 of a pound of ham for 3 dollars, how much can you purchase for 10 dollars? Write your answer as a fraction of
Marrrta [24]
4/5 pounds for 3 $ 
hence for 1$ we get 4/15 pounds
then for 10$ we would get 4*10/15 =40/15 = 8/3
4 0
3 years ago
Please help i will give out brainliest
enot [183]

Answer:

A

Step-by-step explanation:

To determine if a point lies on the curve, substitute the x- coordinate into the equation. If the value obtained is equal to the y- coordinate then the point lies on the curve, that is

A

y = (\frac{3}{2} )² = \frac{9}{4} ≠ \frac{9}{2} ← not on line

B

y = (- 1)² = 1 ← lies on line

C

y = 4² = 16 ← lies on line

D

y = (\frac{1}{2} )² = \frac{1}{4} ← lies on line

7 0
3 years ago
Other questions:
  • Can u help me with 8 and 10
    12·1 answer
  • (9x+13)^2=49<br> Solve the quadratic equation given below.
    14·1 answer
  • Jen buys 4 tires for 272$
    14·1 answer
  • Use the formula V = s³, where V is the volume and s is the edge length of the cube, to solve this problem.A cube-shaped bin has
    9·1 answer
  • 1 lakh more then 45,25,306​
    7·1 answer
  • What is the square root of 2?
    7·2 answers
  • 2/5 + 1/4 what is the answer
    6·2 answers
  • Help pls and just come for the points
    12·2 answers
  • Factor Trinomials:
    13·1 answer
  • Rebecca earned $115 in simple interest for 8 months at an annual interest rate of 3%. How much money did she start with in her a
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!