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
garik1379 [7]
3 years ago
15

Of the five quadratics listed below, four of them have two distinct roots. The fifth quadratic has a repeated root. Find the val

ue of the repeated root.
-x^2 + 18x + 81
3x^2 - 3x - 168
x^2 - 4x - 4
25x^2 - 30x + 9
x^2 - 14x + 24
Mathematics
1 answer:
musickatia [10]3 years ago
6 0

Answer: 3/5

Step-by-step explanation: The fourth quadratic in the list is the square of a binomial:

25x^2 - 30x + 9 = (5x - 3)^2

Therefore, the repeated root of this quadratic is the solution to 5x - 3=0, which is 3/5

You might be interested in
Simplify the expression: w2 + 7w2 + 8w - 5 + 9 - 2w2
ololo11 [35]
<h3>6w^2 +8w +4 is the simplified expression</h3>

<em><u>Solution:</u></em>

Given that,

We have to simplify

w^2 + 7w^2 + 8w -5+9-2w^2

We can simplify the above expression by combining the like terms

Like terms are terms that has same variable with same exponent and same or different coefficient

From given,

w^2 + 7w^2 + 8w -5+9-2w^2

Group the like terms

w^2 + 7w^2 -2w^2 + 8w - 5+9\\\\Combine\ the\ like\ terms\\\\6w^2 +8w -5+9\\\\Combine\ the\ constants\\\\6w^2 +8w +4

Thus the given expression is simplified

4 0
3 years ago
The total cost CC (in dollars) to participate in a ski club is given by the literal equation C=85x+60C=85x+60, where xx is the n
Morgarella [4.7K]
First of all why is there 2 similar equation connected to one another?

Second in order to solve this all you need to do is plug in the number and solve for x

For 485

85x+60=485
85x=420
X=5

Do the same thing and you get 3
6 0
3 years ago
Read 2 more answers
A ferris wheel
Elena L [17]

Answer:

12375

Step-by-step explanation:

one rotation: 495

25 rotations x 495 seconds

12375  seconds

5 0
3 years ago
Read 2 more answers
A number to the 12th power divided by the same number to the 9th power equals 125 what is the number
nadezda [96]

If x to the 12th power is divided by x to the 9th power:

Since they share same bases, and are being divided, it would be the same as x^{12 - 9), or x^{3}

Now, simply find the cube root of 125, which is 5.

Therefore, the number (x) must be equal to 5.

<em>Hope this helps! :)</em>

7 0
3 years ago
What value of c makes the polynomial below a perfect square?
Montano1993 [528]

Answer:

The value for c is B. 49

4 0
3 years ago
Other questions:
  • The graph below represents cans collected for a food drive at willowdale middle
    10·2 answers
  • What is the IQR (Interquartile Range) for the following data? 20, 27, 28, 29,
    12·1 answer
  • Which expression is equivalent to 1/5 divided by 1/2
    14·1 answer
  • Nigel is making holiday cookies. His recipe calls for 1/2 pound of raisins. The recipe also calls for 1/4 pound of dates and 1/8
    14·1 answer
  • A certain student has taken 124 credit hours so far in college. The student took the same number of credit hours in each fall se
    10·1 answer
  • You can identify sample spaces for compound events using organized lists, tables, and tree diagrams. Which of the three methods
    5·2 answers
  • Andy wants to find the distance across a river. In
    12·1 answer
  • Henri bought a swimsuit suit at a cost of $8. Which statements are true regarding the cost of the suit? Select three correct opt
    13·1 answer
  • Help asapppoppppppppp
    9·2 answers
  • 1. Determine the distance from the bridge for three consecutive frets. Round each answer to 3 decimal place. For example, you ca
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!