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
hichkok12 [17]
3 years ago
5

Explain how to find the value of z if you know that 100x*2 + 120x + z is a perfect square trinomial

Mathematics
2 answers:
maksim [4K]3 years ago
8 0
For perfect trinomial, determinant is zero.
Comparing given equation with general quadratic equation ax²+bx+c,

a=100, b=120, c=z
Δ=b²-4ac = 0
120²-4(100)(z) = 0
z=120²/4(100) = 36

Therefore, the required trinomial is,
100x²+120x+36
wariber [46]3 years ago
7 0
Divide the value of "b" by 2 and then square it.

   (b / 2)²
= (120 / 2)²
= (60)²
= 3600

Therefore the value of z is 3600. That's at least what I believe lol
You might be interested in
-20y + 15 = 2 - 16y + 11
shtirl [24]
In order to answer this, we will first need to combine like terms on each side. on the left, you can leave them alone. however on the right, we will need to combine 2 and 11. this is 13. the right side becomes 13-16y. after that, we can add 20y to both sides. that equals 15=13+4y now we can subtract 13 from both sides. 2=4y. then we divide by 4 on both sides to find y. y=.5
7 0
3 years ago
When solving negative one over five(x − 25) = 7, what is the correct sequence of operations?
Rufina [12.5K]
Add 25 to both sides x-25 +25 =7 +25
x =32 
7 0
3 years ago
Is this equation an example of growth or decay?<br><br> y=2(3)−x<br><br> growth<br><br><br> decay
iris [78.8K]

Answer:

it is decay

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Stephanie had seven add an 8 pound of bird seed she use three out of 8 pound to fill a bird feeder f Stephanie had 7 pound of bi
natulia [17]
So if I understand correctly, she had 7 1/8 pounds of birdseed and used 3/8 pound.
Convert the 7 1/8 to an improper fraction [(8*7)+1]/8 =57/8
57/8 - 3/8 = 54/8, which is 6 6/8 which reduces to 6 3/4 pounds left

If she had 7 pounds of birdseed and used 3/8 pounds, you need to find a common denominator to subtract if you can't do it in your head. 8 would be the common denominator, so:
56/8 - 3/8 = 53/8, which is 6 5/8 pounds left
6 0
3 years ago
Math Help Quick!!!! Plzzzzzzzz!!!!!
KatRina [158]

Answer:(5,-10)

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Plz help i will give brainliest
    10·2 answers
  • Consider the density curve below.
    13·1 answer
  • Suppose you invest $63 a month in an annuity that earns a 3.3% APR
    14·1 answer
  • Find the domain of y=\sqrt{3x-8}
    10·1 answer
  • The distribution of annual profit at a chain of stores was approximately normal with mean μ = $66,000, standard deviation σ = $2
    7·1 answer
  • The area of a square is 25 square meters. what is the length of one side of the square
    9·1 answer
  • Georgie is 40 years old <br> Her friends summer is 7/8 of her age <br> How old is summer?
    15·2 answers
  • How many miles are in 506,880 inches?
    7·1 answer
  • Solve the absolute value equation and enter the solution in set notation.<br><br> |2x−3|−7=0
    8·1 answer
  • HELP NO LINKS OR TROLLING
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!