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]
2 years ago
5

The x-intercept was substituted incorrectly

Mathematics
1 answer:
seraphim [82]2 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
Janna buy 2bags of food for her dogs one bag weighs 37 pound the other bag weighs 15 pounds how many pounds do both bags weigh e
lys-0071 [83]

Answer:

52 pounds

Step-by-step explanation:

add them together

37 + 15 = 52

5 0
2 years ago
Write me a paragraph proof.
elixir [45]
Just write all of that but instead of in the box between each statement and reason write if then
4 0
2 years ago
A piece of wood is cut into 3 pieces in the ratio 5:4:3 if the length of the shortest piece is 2 how long is the wood
Bad White [126]

Answer:

Step-by-step explanation:

5:4:3 = x:y:2

4:3 = y:2                 Cross multiply

3y = 8                     Divide by 3

y = 8/3 = 2.66'

5/x = 3/2

3x = 10                   Divide by 3

x = 10/3

x = 3.33

Length of the wood = 2.66 + 3.33 + 2

Length of the wood = 8 feet

8 0
2 years ago
A fair die is tossed 5 times. Let <img src="https://tex.z-dn.net/?f=%5Cdfrac%7Bm%7D%7Bn%7D" id="TexFormula1" title="\dfrac{m}{n}
Ray Of Light [21]

Answer:

m = 1

Step-by-step explanation:

We can suppose that the number we are looking for is for example 5.

(we can do so because the probability is the same for each number - it'sna fair dice)

For the first toss the probability we have 5 is 1/6 (we have 6 numbers on the dice and number 5 is just one of the possible 6 outcomes).

For the second toss the probability we have 5 is again 1/6.

For the rest of 3 tosses we don'tcare what number we will get( we have our two consecutive 5s), so all of the outcomes for the rest of 3 tosses are good for us (probability is 6/6 = 1)

Threfore, the probability to get two consecutive 5s is 1/6 * 1/6 * 1 * 1 * 1 = 1/36.

We can see that m = 1.

4 0
3 years ago
Find the equation of the line with the given properties: slope of 2, contains the point ( 4, -3).
Minchanka [31]
The answer is y=2(x-4)-3
6 0
3 years ago
Other questions:
  • Which of the following is the quotient of the rational expressions shown below? 2x-3/5x^2 divided by x-5/3x-1
    8·2 answers
  • 7..4745 x 10 to the 10th power
    14·1 answer
  • John is interested in purchasing a multi-office building containing five offices. The current owner provides the following proba
    14·1 answer
  • 38 POINTS
    13·2 answers
  • Holiday Time! Crazy Time! You have to work 7 days in a row. You work 8 hours a day every single day for 7 days straight. Your wa
    10·2 answers
  • Given that the two triangles are similar, solve for x if AU = 20x + 108, UB = 273, BC = 703, UV = 444, AV = 372 and AC = 589.
    9·1 answer
  • What number is next in this sequence 1,6,11,16
    7·1 answer
  • Which of these is the formula for the volume of a cylinder?
    10·1 answer
  • Find the value of x<br> (6x + 7)°<br> (8x - 17)°
    10·1 answer
  • Guys I need some help with this question pls!!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!