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
vichka [17]
3 years ago
15

50pts help! consider this quadratic equation. 2x^2-1=3x+4 Which equation correctly applies to the quadratic formula?

Mathematics
2 answers:
eduard3 years ago
7 0

Step-by-step explanation:

im not going to go in to detail but the answer is c

DaniilM [7]3 years ago
4 0

Answer:

c

Step-by-step explanation:

You might be interested in
Part one: How do you solve a system of equations approximately using graphs and tables?
tatiyna
This problem can be solve by graphing (technology), as suggested. 
The answer is posted as an attached image.  We see that after about 14.75 years, the invading species will surpass the indigenous population.

If it needs to be solved mathematically and accurately, the math is a little more advanced, using the bisection method, or Newton's method.
However, we can also do that by trial and error, starting from 14.75.  It is easier than you might think.

Post if you would like to have more information on one or the other methods.

Note: the scale of y has been shrunk by 1000, so each unit on the y-axis represents 1000 frogs.

5 0
3 years ago
Solve the following equation for X: 3+1/x
vladimir2022 [97]

Answer:

x=2

......

Step-by-step explanation:

x=3+1/x

x^2=4

x=2

6 0
3 years ago
A corn vendor at a farmers market was selling a bag of 8 ears of corn for $2.56.Another vendor was selling a bag of 12 for $4.32
ankoles [38]

To decide which one is the better deal, you need to compare them on price per ear. So, the the first vendor is $2.56/8ears= $0.32/ear

the second vendor: $4.32/12 = $0.36/ear

The first vendor with the bag of 8 ears is the better deal!

5 0
3 years ago
Read 2 more answers
A study to compare the mean level of LDL cholesterol in male and female students who do not exercise regularly gave the data sho
Doss [256]
Female:                                     Male:
60                                              35
96                                             109
26                                              31
n₁=no. of entries=3                    n₂=no. of entries=3
s₁=sample standard                   s₂=sample standard 
      deviation=35.005                       deviation=43.924
x₁=sample mean=60.666           x₂=sample mean=58.333

Here s and x are calculated from calculator.
Now,
for significance level
1-α=90%
1-α=0.9
α=0.1
α/2=0.05

As population variances are unknown for both Male and female so the best suitable formula is

    (x₁ - x₂) ± tα/2,v₁ * \sqrt{ \frac{s_1^2 }{n_1} + \frac{s_2^2}{n_2} }
   ........1

where v(degree of fredom)=(s₁²/n₁+s₂²/n₂)² / ((s₁²/n₁)²/n₁-1)+(s₂²/n₂)²/n₂-1))
    by putting values 
           v=3.81026
From Statistics table,
      See the t table at α/2=0.05  and v=3.81026
use interpolation as v value is not in the table,
      3.81026-3/4-3 = x-3.182/2.776-3.182
                          x= 2.853
by putting values in eq. 1 we get
  
(60.666-58.333) ± (2.853)*\sqrt{ \frac{35.005^2 }{3} + \frac{43.924^2}{3} }      

  2.333 ± 92.516 is the correct answer.


8 0
2 years ago
3x^2+17x-9/x+4 what is the quotient
zvonat [6]

Answer:

The quotient of given expression is (3x+5).

Step-by-step explanation:

The given expression is

\frac{3x^2+17x-9}{x+4}

The coefficients of dividend are 3,17 and -9.

Use synthetic division to divide 3x^2+17x-9 and x+4.

The bottom row represents the coefficient of quotient and remainder.

The given expression can be written as

\frac{3x^2+17x-9}{x+4}=3x+5-\frac{29}{x+4}

Therefore the quotient of given expression is (3x+5).

5 0
3 years ago
Other questions:
  • The least common multiple of two numbers is 22. One number is even, and one number is odd
    13·2 answers
  • One month,ruby worked 6 hours more than Isaac, and Svetlana worked 4 times as many hours as ruby. Together they worked 126 hours
    12·1 answer
  • two riders rode a total of 165 miles. if they replaced each horse with a fresh horse every 11 miles, how many horses would they
    12·1 answer
  • Which two numbers on the number line have an absolute value of 1.75? Select the location of both numbers on the number line
    5·2 answers
  • 60 cars to 24 cars<br> What is the answer
    10·2 answers
  • With proof please, i need to know how many dozen sugar cookies they should prepare
    14·1 answer
  • #4 is 28 it just got cut off
    13·2 answers
  • The percentage difference from 239,900 to 251,895
    7·2 answers
  • HELP PLEASE , i need it asap
    11·2 answers
  • Also i wanna say thank you for helping me this school year you did a great job have a great summer​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!