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
tensa zangetsu [6.8K]
2 years ago
15

How do you find the missing number of a perfect square trinomial? 25x^2 - 60x + ___

Mathematics
1 answer:
Harrizon [31]2 years ago
4 0

Answer:

  36

Step-by-step explanation:

Compare what you have to the square ...

  (a +b)^2 = a^2 +2ab +b^2

Your "a" is √(25x^2) = 5x

Your "2ab" is -60x. Since you know "a", you can find "b".

  2ab = -60x

  2(5x)b = -60x . . . . . . . substitute for "a"

  b = -60x/(10x) = -6

Then the missing term is b^2 = (-6)^2 = 36.

Your trinomial is ...

  25x^2 -60x +<u>36</u>

You might be interested in
Math help!!!!! thanks!!!!!!!
astraxan [27]
PEMDAS
We start with exponents.
4 x 4 is 16
12 divided by 3 is 4
4 times 5 is 20
20-16 is 4
4 is the answer.
5 0
2 years ago
Read 2 more answers
What are the factors for 36
dsp73
4, 6, 9, and 12 I think
7 0
3 years ago
Read 2 more answers
How do I divide 30 divided bt 7230​
Zolol [24]
You write like that that's how I do it

3 0
3 years ago
Read 2 more answers
NEED HelP ASAP!!!!!!
Nata [24]

Answer:

the bottom left

Step-by-step explanation:

desmos is a website you can use for graphing :)

3 0
2 years ago
Read 2 more answers
Vicente has a prism like water tank whose base area is 1.2 square meters. He bought 6 goldfish at the store , and the store owne
Reika [66]

Answer:

1.25 meters

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • {20 points}
    7·1 answer
  • The figure shows the dimensions of a sail for a model boat.
    12·2 answers
  • 5(x+1)=20<br><br> What is is the answer?
    13·2 answers
  • If angle a is congruent to angle b and the supplement of b is 22 degrees the angle a =
    9·2 answers
  • WILL GIVE BRAINLIEST
    6·2 answers
  • What is the value of sec theta in the triangle below
    6·1 answer
  • 8(6-x)-3x(6-x)=0 how would this be factored​
    6·1 answer
  • Giving brainily if ur correct
    8·2 answers
  • What is the area of a 45 degree sector of a circle with a radius of 12 in.
    6·1 answer
  • Tua wanted to teach his pet raven to count because they are very smart birds. He used various fruits and nuts to represent numbe
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!