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
Pie
3 years ago
8

Without his pencil or calculator, Joey knows that 2x³+3x²− 1 = 0 has at least one real solution. How does he know?

Mathematics
1 answer:
vova2212 [387]3 years ago
6 0

Answer: Find the discriminant

Check explanation

Step-by-step explanation:

b^2-4ac

if it is equal to 0 there is no solution

Greater then 0 there is 2 real solution

Less then 0 there is 1 real

3^2-4(2*-1)

9-4(-2)

9(8)

72 there is at least one real solution

You might be interested in
The measure of angle KMJ??
Irina18 [472]
44

Assuming JM and LN are parallel, KMJ=MKN. MKN is part of a triangle where the other two values are defined (48 and 88). By subtracting these values from 180, we find the value of MKN is 44, which therefore is also the value of KMJ.
3 0
2 years ago
In the figure below, BD and EC are diameters of circle P.
Zinaida [17]

Answer: 333 degrees

Step-by-step explanation:

8 0
3 years ago
I need the answer to this simple Algebra 1 question. Thank you, I will give 10 brainly!!
Finger [1]
The answer is A because 8 is where you started and each time the x number goes up by on the y number goes down by seven (-7)
8 0
3 years ago
If a stadium has 15,000 seats sold at $10.00, $12.50, and $15.00 equally distributed in three sections, how much can be made if
madreJ [45]
187500 $ because 5000 seats for each just multiply
6 0
3 years ago
Read 2 more answers
Find the measure of line segment DF.<br> A) 12<br> B) 13<br> C) 14<br> D) 15
brilliants [131]

As per the  Intersecting Chords theorem, if two chords cross in a circle, the products of the chord segments' measures are equal. The measure of the line segment is DF is 14 units.

<h3>What is Intersecting Chords theorem?</h3>

If two chords cross in a circle, the products of the chord segments' measures are equal.

As per the Intersecting Chords theorem, the product of DF and FB will be equal to the product of CF and FA, therefore,

DF×FB = CF×FA

(x+8) × 8 = 16 × 7

(x+8) = (16×7)/8

(x+8) = 14

Hence, the measure of the line segment is DF is 14 units.

Learn more about Intersecting Chords theorem:

brainly.com/question/15298662

#SPJ1

4 0
2 years ago
Other questions:
  • What’s the x value of PR=9x-31 and QR=43?
    15·2 answers
  • An angle measures 156° less than the measure of its supplementary angle. What is the measure of each angle?
    5·2 answers
  • (3n-4)(n squared +5n-4)<br> What is this in simplest form/terms
    12·1 answer
  • Hannah is making bags of. trail mix for hiking club she will use 21 ounces of walnuts 11.1 ounces of almonds and 13.4 ounces of
    10·1 answer
  • PLEASE HELP i will give brainliest if it is the correct answer i just really need to understand:(Select from the drop-down menus
    11·2 answers
  • A tin man has a head that is a cylinder with a cone on top. The height of the cylinder is 12 inches and the slant height of the
    13·2 answers
  • 6th grader who needs help :( anyone know?
    11·2 answers
  • What is the value of -2-(-16)
    9·1 answer
  • I will give brainlest, i just need help fast, thx.
    13·2 answers
  • 1. ARCHAEOLOGY While digging a hole to plant a tree,
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!