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
Alexxx [7]
3 years ago
13

Write a quadratic equation with the given roots. Write the equation in the form ax2 + bx + c = 0 where a, b, and c are integers.

-10 and -2
Mathematics
1 answer:
Vikki [24]3 years ago
5 0

A quadratic with roots at 8 and 5 is f(x) = x^2 +12x + 20

In order to find an equation given roots you can create statements that equal 0 in order to create parenthesis. For instance we know x = 8 at one point. So, we can solve that to equal 0.

x = -2 ----> add 2 to both sides

x + 2 = 0

We can do the same for the other zero.

x = -10 ----> add 10 to both sides

x + 10 = 0

Now that we have both of these, we can multiply these two things together. This will give us the function we need.

f(x) = (x + 2)(x + 10)

f(x) = x^2 + 10x + 2x + 20

f(x) = x^2 + 12x + 20

You might be interested in
You are enlarging a photograph to make a poster. The posterwill be similar to the original photograph. The photograph is6 inches
natka813 [3]

Answer:

Poster’s perimeter = 150 in

Step-by-step explanation:

Given:

Width of poster = 2.5 ft = 2.5 × 12 = 30 in

Find:

Poster’s perimeter.

Computation:

Height of poster = [30×6]/4

Height of poster = 45 in

Poster’s perimeter = 2 [Width of poster + Height of poster]

Poster’s perimeter = 2 [30+45]

Poster’s perimeter = 2 [75]

Poster’s perimeter = 150 in

5 0
4 years ago
Help!! Please thank you
Alchen [17]
Ok so we need to set the bottom to 0 to find the vertical asympyotes. This becomes x^2 - 4 = 0. Since we're talking about asymptotes, i'll assume you can solve basic equations. Solving for x and you get x = ±2. This means the vertical asymptotes are at ±2. To solve for horizontal asymptotes you take the limit as x goes to ±∞. Either way you end up with ±∞/∞. Now this isn't 1 because they grow at different rates. You differentiate both the top and bottom(L'hopital) and you get 6x/2x which becomes 3. This means the horizontal asymptote is at y = 3.
3 0
3 years ago
Andrea receives a $40 gift card to use at a town pool. It costs her $8 per visit to swim. A
ycow [4]

Answer:

The value of the gift card = v = $40

The visit to the skate cost = $8

The number of visits = n

∴ n = the value of the gift card over the cost of one visit to the skate

∴ n = v/8 = 40/8 = 5

Step-by-step explanation:

The general function for relating the value of the gift card, v, in terms if the number of visits, n. ⇒⇒⇒   v = 8n

4 0
3 years ago
-2.3 - (4.5 - 3 1/2)
Andrej [43]
Your answer will be -5.3
6 0
4 years ago
Read 2 more answers
What is the perimeter of this rectangle?
DanielleElmas [232]
P= 2(1 + h)

P= 2(8 + 13)

P= 2(21)

P=42

Your answer is 42
7 0
3 years ago
Other questions:
  • Do 2b+ b and 3b have the same value for all values of b? explain your reason
    12·1 answer
  • !!!TIME LIMIT PLZ HURRY!!!Which describes the relationship between <1 and <2?
    14·2 answers
  • Solve in ordered pair format <br>x-y=5<br>x=y+3
    12·1 answer
  • The question is in the picture along with the answer choices please help!!
    8·1 answer
  • Mrs. Piper is driving Anna, Jo, and Mai home from school. All of them want to ride in the front seat. How can she make a fair de
    9·2 answers
  • Your bank offers free access to online banking, but they charge you $.02 for each online e-check you send. They charge you $.10
    8·1 answer
  • URGENT I NEED HELP RIGHT NOW 5 STAR + BRAINLY
    8·2 answers
  • Which system of inequalities is shown in the graph?
    10·1 answer
  • Answer the statistical measures and create a box and whiskers plot for the following set of data.
    7·1 answer
  • Add the following term <br> 2x^7 + 3x^7 =
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!