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
maksim [4K]
3 years ago
14

For what values of m does the graph of y = mx^2 – 5x – 2 have no x-intercepts?

Mathematics
1 answer:
STALIN [3.7K]3 years ago
8 0
\Delta\ \textless \ 0\\
\Delta=(-5)^2-4\cdot m\cdot(-2)=25+8m\\
25+8m\ \textless \ 0\\
8m\ \textless \ -25\\
m\ \textless \ -\dfrac{25}{8}
You might be interested in
Help with this please.
Ivanshal [37]

Answer:

  • True
  • True

Step-by-step explanation:

This question asks you to compare the coordinates of the vertex of each function.

__

The vertex of the function is its minimum, the point where the graph stops decreasing and starts increasing. It is the lowest point on the graph.

<h3>f(x)</h3>

The vertex is (-4, -1). The minimum is -1, located at x = -4.

<h3>g(x)</h3>

The vertex is (1, -25). The minimum is -25, located at x = 1. We know this is the minimum because there are no g(x) values that are lower (more negative).

<h3>comparison</h3>

The minimum of f(x), -1, is greater than the minimum of g(x), -25. TRUE

The x-value of f(x) at its minimum, -4, is less than the x-value of g(x) at its minimum, 1. TRUE

8 0
2 years ago
Is 2/5 the same as 0.4?
ICE Princess25 [194]
Yes, because if you devide 2 by 5 it equals a decimal of .4
<em>~Hope this helped :)</em>
8 0
3 years ago
Read 2 more answers
Please explain to me how 3.2÷4=0.8 is done
DedPeter [7]

To make it easier just assume there is no decimal point then just work out the 32÷4 where we know that 4 goes into 32 8 times so you get 8 remember the decimal point and since it was one decimal place you will push the decimal over to the left of 8 and that is how you get 0.8

4 0
3 years ago
Read 2 more answers
What is 19/20 as a decimal and a fraction
vredina [299]
The decimal would be .95 and the fraction would be 95/100 I believe 

NOT 100% sure 

Hope it helps


7 0
3 years ago
Read 2 more answers
Express polynomial as a product of two factors.​
Marat540 [252]

Answer:

x=36/7-3

Step-by-step explanation:

see this is for nerds so i can't really show you cause i don't know how to but put this on your test and u will get it right

4 0
3 years ago
Other questions:
  • If (x,y) is a solution to the system of equations shown below, what is the product of the y-coordinates of the solutions? x^2+4y
    12·1 answer
  • Which is a reasonable first step that can be used to solve the equation 2(x + 6) = 3(x - 4) + 5?
    15·1 answer
  • Solve for d: 7d = –35
    14·1 answer
  • he sides of a square are five to the power of two fifths inches long. What is the area of the square?
    8·2 answers
  • Through the points (-10,-20) and (5,10)
    12·1 answer
  • 1. There are 25 students who started computer programming in elementary school and 25 students who started computer programming
    9·1 answer
  • Find the area of the figure.
    15·1 answer
  • Which mathematical property is demonstrated below? 3 + 0 = 3
    11·2 answers
  • Find the rate of change on the graph​
    8·2 answers
  • What is the surface area of this shape?<br> 1 cm<br> 5 cm<br> 4 cm<br> 2 cm<br> 6 cm<br> 3 cm
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!