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
Mariulka [41]
3 years ago
12

What are the roots of this equation 2x^2+7x-3=0

Mathematics
2 answers:
Ludmilka [50]3 years ago
8 0

Step-by-step explanation:

2x^2+7x-3=0

by doing splitting the middle term we get/ <u>using quadratic eq we get-</u>

Let's solve your equation step-by-step.

2x2+7x−3=0

For this equation: a=2, b=7, c=-3

2x2+7x+−3=0

Step 1: Use quadratic formula with a=2, b=7, c=-3.

x=

−b±√b2−4ac

2a

x=

−(7)±√(7)2−4(2)(−3)

2(2)

x= −7±√73 /4

x= −7 4 + 1 4 √73 or x= −7 4 + −1 4 √73

Answer:

x= −7 4 + 1 4 √73 or x= −7 4 + −1 4 √73

please mark me as the brainliest:)

valentinak56 [21]3 years ago
4 0

Answer:

b

Step-by-step explanation:

You might be interested in
Planes X and Y and points C, D, E, and F are shown.
jekas [21]

Answer: Maybe B

Step-by-step explanation:

6 0
3 years ago
Which equation relates the number of triangles in the figure (n) to the perimeter of the figure (p)
WITCHER [35]

Answer:

Option d is correct.

Equation : P=7n+20.

Explanation;

Given the perimeter of each figure is;

Perimeter of triangle is equal to the sum of all the sides of a triangle.

Perimeter of 1 triangle is 21

Perimeter of 2 triangle is 34 and

Perimeter of 3 triangle is 41

Let n be the number of figure and P be the perimeter of the figure;

the only equation which satisfy the given perimeter is;

P=7n+20

Check:

for n =1 which means 1 triangle then;

P =7n+20 = 7 \cdot 1 +20 = 7+20 = 27

for n = 2 , [ i.e 2 triangle]

P =7n+20 = 7 \cdot 2 +20 = 14+20 = 34

and for n =3 [i.e, 3 triangles]

P =7n+20 = 7 \cdot 3 +20 = 21+20 = 41

Therefore, the equation P =7n+20 relates the number of triangles in the figure(n) to the perimeter of the figure(P).


3 0
3 years ago
Add [1/5x-4+2y]+[2/5x+5-4y]=
alisha [4.7K]
<h3>I'll teach you how to solve (1/5x-4+2y)+(2/5x+5-4y)</h3>

-----------------------------------------------------------------

(1/5x-4+2y)+(2/5x+5-4y)

Remove parentheses:

1/5x-4+2y + 2/5x+5-4y

Group like terms:

1/5x+2/5x+2y-4y-4+5

Add similar elements:

3/5x+2y-4y-4+5

Add similar elements:

3/5x-2y-4+5

Multiply:

3x/5-2y-4+5

Add subtract the numbers:

3x/5+1-2y

Your Answer Is 3x/5+1-2y

plz mark me as brainliest :)

6 0
3 years ago
Write two conditionals from each biconditional
bearhunter [10]

Two conditionals from each biconditional are

  • (1) A month has exactly 28 days (2) It is February
  • (1)Two angels are complementary  (2) The measures of the angles add up to 90
  • (1) The area of square s^2 (2) The perimeter of the square is 4s

<h3>How to write two conditionals from each biconditional?</h3>

A biconditional statement is represented as:

if and only if p, then q

From the above biconditional statement, we have the following conditional statements

Conditional statement 1: p

Conditional statement 2: q

Using the above as a guide, the conditional statements from the biconditional statements are:

<u>Biconditional statement 30</u>

  • A month has exactly 28 days
  • It is February

<u>Biconditional statement 31</u>

  • Two angels are complementary
  • The measures of the angles add up to 90

<u>Biconditional statement 32</u>

  • The area of square s^2
  • The perimeter of the square is 4s

Read more about biconditionals at

brainly.com/question/27738859

#SPJ1

3 0
1 year ago
PLEASEEEE HELPP!!! 6-2+9a-4a+a+7 <br> PLEASEE HELP THIS IS URGENT!!!! pelaseeeeee helppp
never [62]
The answer is 6a+11 (don’t add this part) fjdjfjdjdjcjcjcjcjcjjcccj
8 0
3 years ago
Other questions:
  • Write an equation to model this situation. Then use your equation to solve. Jack has saved $16.50 to spend on the fair ride tick
    10·1 answer
  • HELP! i’ll mark brainliest right away!
    14·2 answers
  • BEST ANSWER GETS TO BE BRAINLYEST!!!!!
    7·2 answers
  • What is n. ... 12+9=n+12
    11·2 answers
  • (a) An angle measures 70°. What is the measure of its supplement?
    13·1 answer
  • Pls help extra points and mark brainlist
    14·1 answer
  • Given a+2 when a=5 I need help
    15·2 answers
  • The ratio of roses to tulips is in an arrangment is 2/3. The total number of flowers is 25. How many tulips are there?
    9·1 answer
  • Please help me with this homework
    8·1 answer
  • The graph of y=f(x) is the solid black graph below. Whoch function represents the dotted line
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!