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
serious [3.7K]
3 years ago
13

For what values of m does the graph of y = 3x^2+ 7x + m have two x-intercepts?

Mathematics
1 answer:
qaws [65]3 years ago
8 0

Answer:

m < 49/12

Step-by-step explanation:

The portion of the quadratic formula under the square root sign is the discriminant.

If the discriminant is > 0 then there are two real roots.

b² -4ac > 0

-----------------------------

7² - 4(3)m > 0

49 - 12m > 0

Subtract 49 from both sides

-12m > -49

Divide both sides by -12

(when multiplying or dividing by a negative the inequality must be reversed)

m < 49/12

You might be interested in
A die is rolled twice
strojnjashka [21]
The Probability is 2/6 and 3/6. 2/6= 1/3 and 3/6=1/2    The ratio is 1/6
5 0
3 years ago
A car rental company offers two options. option a is $25 per day plus $0.11 per mile. option b is $12 per day plus $0.36 per mil
AVprozaik [17]
25+0.11n>12+0.36n
13>0.25n
n<52
Option b will cheaper then quantity of miles less than 52 miles.
6 0
3 years ago
What is the best definition of a triangle?
NISA [10]

Answer:

A figure formed by 3 segments connecting 3 non-colinear points.

3 0
3 years ago
Read 2 more answers
Having trouble with this one can somebody help?
Varvara68 [4.7K]
Form equation
y = mx + c
y = (rise/run).x + c
y = (11-1 / 3--2)x + c
y = 2x + c
11 = 2(3) + c
Find c (y-intercept)
11 - 6 = c
c = 5
Final equation of line
y = 2x + 5
Substitute given possible x-values in to find y-values
y = 2(1) + 5 = 7 (1,7)
y = 2(2) + 5 = 9 (2,9)
Therefore d is correct
3 0
3 years ago
Need help hard question! Picture has it all.
iris [78.8K]
Using the tagent rule:

 Tangent(angle) = Opposite Leg /  Adjacent leg

Tangent(51) = x / 10

x = 10 * Tangent (51)

x = 12.349

x = 12.3 ( Rounded to the nearest tenth)
3 0
3 years ago
Other questions:
  • Melanie spent $40 in 4 hours while shopping at the mall. How much money has changed hands? A) $10 B) $40 C) -$10 D) -$40
    6·1 answer
  • PLZ HELP Simplify the rational expression. State any excluded values. 2x/-5x+x^2
    12·2 answers
  • CHECK MY WORK PLEASE (I chose C)
    9·1 answer
  • Each letter of the English alphabet is written on a scrap of paper and put in a hat p(j)= 1/26 what type of probability is illus
    10·2 answers
  • 1+12 ddddddddddddddddddddddddddddddddddddddddddddddddddddd
    14·2 answers
  • Mary Beth traveled 240 miles in 4.8 hours and then stopped for a break. Then she traveled 255 miles in 4.2 hours. Not counting t
    5·2 answers
  • At a fabric store, fabrics are sold by the yard. A dressmaker spent $36.35 on 4.25 yards of silk and cotton fabrics for a dress.
    6·1 answer
  • A line passes through point (8,-6) and has a slope of 3/4. How do you write an equation in slope-intercept form for the line?
    8·1 answer
  • Consider the equation x^2-x-20=0 <br> NEED HELP ASAP!!! Will mark brainlyist
    7·2 answers
  • Evaluate the expression below when x = 4 and y = 12.<br> 5х^2 — Зу
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!