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
hram777 [196]
3 years ago
5

The x-intercept was substituted incorrectly

Mathematics
1 answer:
seraphim [82]3 years ago
4 0

Answer:

Step-by-step explanation:

let the eq. of parabola be

y=ax²+bx+c

points (-1,0),(2,0),(3,4) and (0,-2) lie on it.

0=a-b+c

0=4a+2b+c

subtract

3a+3b=0

a=-b

4=9a+3b+c

-2=0+0+c

c=-2

a-b-2=0

-b-b-2=0

-2b-2=0

b+1=0

b=-1

a=-b=-(-1)=1

eq. of parabola is

y=x²-x-2

You might be interested in
20. What is the perimeter of a square that has a side length of 4x - 5y? (Show Work)
sammy [17]
Answer= 16x -20y

Perimeter of a square= 4( Side length)
Therefore, 4(4x -5y)
= 16x -20y
I think that is it cuz e can’t solve it any further
8 0
3 years ago
What is the diameter of if the circumference of 14
Serggg [28]

Answer:

The diameter would be 4.456338407...

Step-by-step explanation:

This is because if the formula for circumference is C= D(pi) , to find the diameter it's the opposite. D= C/pi

3 0
3 years ago
If f(x)=2x^3-x+c and f(2)=10 then what's the value of c?
Goshia [24]

Answer:

c = -4

Step-by-step explanation:

If f(x) = 2x^3 - x + c and f(2) = 10, plug in 2 for the x values in the function and make the function output 10.

10 = 2(2^3) - 2 + c    Now, we only have to deal with one variable, that is c.

10 = 2(8) - 2 + c

10 = 16 - 2 + c

10 = 14 + c

-4 = c    After simplifying, we get that c is -4.

To check this, plug in 2 for x, and -4 for c in the function. If the function produces 10 as the result, the halleluja!

f(2) = 2(2^3) - 2 - 4

f(2) = 2(8) - 2 - 4

f(2) = 16 - 2 - 4

f(2) = 10

7 0
3 years ago
Read 2 more answers
Madison is starting her own sewing business. Madison thinks she will do a better job than her competitors, so she thinks she can
GREYUIT [131]

Answer:

<h2>$2479.5</h2>

Step-by-step explanation:

In this problem we will estimate her monthly earnings

given that she earns $13.05 per hour

and also given that she works for 190 hours in a month

then in a month, her earnings will be

=$13.05*190

=$2479.5

alternatively,

per week she works 47.5hours

in a week she will earn 13.05*47.7= $622.485

4 weeks make a month

then after one month her earning will be

$622.485*4= $2479.5

8 0
3 years ago
What is the coefficient of the variable 2q + 24
Rudik [331]

Answer:

2

Step-by-step explanation:

The coefficient is the number before the variable. Therefore 2 is the coefficient of variable q.

6 0
3 years ago
Other questions:
  • How to write 37.025 in word form
    14·2 answers
  • What the correct answer fast
    14·1 answer
  • What is one way to find the total cost of a pair of shoes for $57 with a sales tax of 2%?
    10·1 answer
  • Combine the like terms to create an equivalent expression: <br> 2s+(−4s)=?
    7·1 answer
  • Which expression represents the distance between the point (a,0) and (0,5)
    14·1 answer
  • The length of the shadow of a tree is 24 feet, the tan P = .7.
    6·1 answer
  • Team A walks at a constant rate of 2.5 miles per hour
    5·1 answer
  • Teresa is making iced tea. She has a container that has a volume of 3.95 gallons to store the iced tea.
    11·1 answer
  • You have a loan for $200,000 at 8.5% annual simple interest. What is your monthly interest payment?
    12·1 answer
  • 4.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!