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
Vinil7 [7]
3 years ago
8

For what values of (m) does the graph of y=mx²-5x-2 have no x-intercepts?

Mathematics
1 answer:
Natali5045456 [20]3 years ago
5 0
You need to find where the discriminant is less than zero
Remember the discriminant is b^2 - 4ac
a = m
b = -5
c = -2
Set up the inequality like this
(-5)^2 - 4m(-2) < 0
25 + 8m < 0
8m < -25
m < -25/8 < -3.125

So any number less than -3.125 will make this graph have no x-intercepts (or real roots)
You might be interested in
Jason poured 1 gallon 1 quart of water into an empty 2-gallon bucket. How much more water can be added to reach the bucket's 2-g
Romashka [77]

Answer: 3 quart

Step-by-step explanation:

Given

Jason poured 1 gallon 1 quart of water into an empty 2 gallon bucket

1 gallon can be written as 4 quart

So, 2 gallon can be written as 8 quart

Subtract 1 gallon 1 quart(5 quart) from 2 gallon(8 quart) to get the volume added

\Rightarrow 8-5\\\Rightarrow 3\ \text{quart}

So, 3 quart of water must be added to reach 2 gallon capacity.

6 0
3 years ago
What is the value of x in the equation 3 ( 4 x − 6 ) = − 3 ( 5 − 2 x )
valina [46]

Answer:  x = 0.3

Step-by-step explanation:

12x-18=-15+6x

6x = 3

x = 1/2 or 0.5

[Corrected]

3 0
3 years ago
Read 2 more answers
Scientists believe that there is an extremely massive black hole at the center of the Milky Way. How many times more massive tha
xenn [34]
I got B 
Hope this helps :D
5 0
3 years ago
What is -2 1/4 + 5 1/2 ?
Fofino [41]
To first find the answer to this, let's find a common denominator between each fraction. The denominator is the bottom number of a fraction.
To find the common denominator, let's factor out each of our denominators 5 times to see if they have a common number.
4: 4, 8, 12, 16, 20
2: 2, 4, 6, 8, 10
They both appear to have the smallest common denominator of 4, so let's use 4.

We already have 1/4 with a denominator of 4, but not 1/2.
2 x 2 = 4, so multiply the numerator and the denominator of 1/2 by 2.
1 x 2 = 2
2 x 2 = 4
Your new fraction is 2/4.

Our expression now is:
-2 1/4 + 5 2/4
or (in simpler terms)
5 2/4 - 2 1/4

Subtract the fractions first.
2/4 - 1/4 = 1/4

Now subtract the whole numbers.
5 - 2 = 3

You are left with:
3 1/4

I hope this helps!
8 0
3 years ago
A car cruises at a constant rate of 55 miles per hour. How much time will it take to go to 715 miles?
Verizon [17]
To get the answer, all you have to do is 715 ÷ 55 which equals 13 (hours)
3 0
3 years ago
Read 2 more answers
Other questions:
  • 6=-w/8. How do I solve this equation . What is w
    14·1 answer
  • a triangle has a perimeter of 49 inches. the medium side is 7 more than the short side, and the longest side is 5 times the leng
    10·2 answers
  • PLZZ HELP
    12·2 answers
  • A square has points at (2, 2) and (5, 2). What is the perimeter of the square?
    13·1 answer
  • For the graph of f (x) = | x |, what does the origin represent?
    8·1 answer
  • Find the size of angle xyz<br> give your answer to 3 significant figures
    10·1 answer
  • Given that (3,-1) is on the graph of f(x), find the corresponding point for the function f(3x)
    5·1 answer
  • The polynomial equation x3- 4x2 + 2x+ 10 = x2 - 5x-3 has complex roots 3+2i. What is the other root? Use a graphing
    12·1 answer
  • Help please please please​
    15·1 answer
  • Challenge A family wants to rent a car to go on vacation. Company A charges $70.50 and
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!