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]
3 years ago
12

Find k such that the roots of the quadratic are real, rational, and equal: 9x^2+kx+1=0

Mathematics
1 answer:
Georgia [21]3 years ago
4 0

Answer:

Step-by-step explanation:

9x^2+kx+1=0

k= -9x-1/x

You might be interested in
-5+|-15÷(-5) |2(-5) ​
pav-90 [236]

Answer:

The value of this expression is -35.

Step-by-step explanation:

Let's use the order of operations (PEMDAS), to solve this problem.

-5+|-15/-5|*2*(-5)\\-5+3*-10\\-5+-30\\-35

In conclusion, the value of this expression is -35. Hope this helped :D

7 0
3 years ago
A quadrilateral has angle measures of 120°, 37°, and 48°. What is the measure of the fourth angle?
White raven [17]
155 degrees because the sum of the angles in a quadrilateral is 360 degrees.
x + 120 + 37 + 48 = 360
x= 155
5 0
3 years ago
Read 2 more answers
The function f(x) = x2 - 4x + 5 is shown on the graph.
Xelga [282]

Answer:

4. The range of the function is all

real numbers less than or equal to 9.

3 0
3 years ago
Which methods could you use to calculate the y-coordinate of the midpoint of vertical line segment with endpoints at (0,0) and (
Hatshy [7]

Answer:

Midpoint formula.

The midpoint formula is (x_1+x_2)/2 , (y_1+y_2)/2

Step-by-step explanation:

This is one method. A list wasn't provided.

5 0
3 years ago
A local animal shelter has a total of 16 dogs, and 4
worty [1.4K]
Why would they chose a dog at random?
You need to feel a connection.
6 0
3 years ago
Other questions:
  • Expand and simplify (1-5x)(1+5x)
    14·2 answers
  • If the y-intercept of a line is 4, what could be an equation for this line?
    8·1 answer
  • Can someone help me answer and explain how to solve this?
    13·2 answers
  • A length of thread measured 2/7 m long. Mr. Keller used 3/5 of it. How much thread did he have left?
    14·2 answers
  • Compare 10x(8+2) and 20x(8+2)
    6·1 answer
  • What is the perimeter of a this house
    9·1 answer
  • Find the range of the function: f(x)=7, D={x | −3≤x≤3}
    11·1 answer
  • What is the equation of this line?
    7·1 answer
  • Simplify:<br><br> 5(6h – 1) – 5h<br> A. h – 1<br> B. h – 5<br> C. 25h – 5<br> D. 35h – 5
    14·2 answers
  • Find the 14th term of the geometric sequence 7, 28, 112,
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!