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
ira [324]
3 years ago
7

What is the discriminant of the polynomial 4x^2 - 20 x + 25 ?

Mathematics
2 answers:
marta [7]3 years ago
7 0

Answer:

-12x+ 25 hopes this helps

Step-by-step explanation:

4x 2 - 20 x + 25

8x - 20x +25

-12x + 12


Zarrin [17]3 years ago
3 0

Hello from MrBillDoesMath!

Answer:

0

Discussion:

For the quadratic ax^2 + b^x + c, the discriminant is b^2 - 4ac. In our case, the discriminant is

(-20)^2 - 4 (4)(25) =

400      - 4 (100)   =

0

(This means the polynomial has a duplicate root. In fact it factors as          (2x-5)^2       ).


Thank you,

MrB

You might be interested in
Tommy can paint a fence in 6 hours. If his friend Huck helps, they can paint the fence in 1 hour. How fast could Huck paint the
Luda [366]
1hr/10min is the answer
8 0
3 years ago
To describe a specific arithmetic sequence, Elijah wrote the recursive formula:
11111nata11111 [884]

Answer:

t_{n}  = 30 + 7n, where, n = 0, 1, 2, 3, 4, .........

Step-by-step explanation:

Given the arithmetic sequence in recursive formula.

f(0) = 30 and f(n + 1) = f(n) + 7 ......... (1)

Therefore, putting n = 0 in equation (1) we get f(1) = f(0) + 7 = 30 + 7 = 37 {Since, f(0) is given to be 30}

Again, putting n = 1 in equation (1) we get f(2) = f(1) + 7 = 37 + 7 = 44

And, putting n = 2 in equation (1) we get f(3) = f(2) + 7 = 44 + 7 = 51

and so on.

Therefore, the arithmetic sequence is 30, 37, 44, 51, .......

Therefore, the linear equation of this sequence is given by t_{n}  = 30 + 7n, where, n = 0, 1, 2, 3, 4, .........

(Answer)

3 0
3 years ago
Please help me ASAP!!
choli [55]

Answer:

r = -4

Step-by-step explanation:

If M is the midpoint of DE, that would mean that the distance from M to D and M to E would be the same.

This creates the equation 1-8r=13-5r.

Now it's just simple algebra.

You add 8r to both sides, creating 1=13+3r. Then, you subtract 13 from both sides, getting 3r=-12. Dividing both sides by 3 and solving for r, you get r=-4.

Checking our answer, you see that 1-8(-4)=1-(-32)=1+32=33, and 13-5(-4)=13-(-20)=13+20=33.

8 0
3 years ago
Complete the sentence.<br><br><br> 7 is 35% of _________.
Sonbull [250]
<span>Okay, pretend the number equals X,
so x is 35%, and that would equal 7, so then 
x is still 35/100 = 7 
x = 7 which is 100/35 
x = 700/35 
x = 20 
then you get the number = 20 
I hope this was helpful, and good luck! :P</span>
7 0
3 years ago
Read 2 more answers
Kim has a lawn service business. The equation 165 – 105x + 3y = 0 relates y, her weekly profits , and 2, the number of lawns she
Ede4ka [16]

Answer:

1. -105

2. 3

3. 165

1. -35

2. 55

3. y= mx + b

= -105 + 0

= -105

4 0
3 years ago
Other questions:
  • A company puts bottles of lotion into boxes that are three-inch cubes.The boxes were then packed into a shipping crate,2ft x2ft
    8·1 answer
  • Help solve lowest term of 836/54 please
    15·1 answer
  • What’s the answer to this?
    7·1 answer
  • I’m struggling with this question, please help me
    5·1 answer
  • . What is 6 8ths x 5? Draw a model of your choice to help you solve.<br> WILL GIVE BRAINIST
    7·1 answer
  • eah’s friends gave her $12 at her birthday party. Then her grandparents gave her some more money. In all she had $112 of birthda
    9·1 answer
  • Help with the geometry pls and thx​
    10·1 answer
  • A zoo has 65 birds now. It adopted 17 new birds last week. How many birds did the zoo have before it adopted the new birds? Writ
    13·1 answer
  • How to figure out how to do this problem
    9·1 answer
  • Please answerNot to be un polite but all of you are ignoring me and I pay y’all to help me so I don’t get it
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!