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
Iteru [2.4K]
2 years ago
7

X^2=3x+3 using the quadratic formula,show steps

Mathematics
1 answer:
o-na [289]2 years ago
8 0
X²=3x+3
x²-3x-3=0. have to get 0 on right first
identify a,b,c. a is 1, b is -3, c is -3
now plug in to the quadratic formula...

x = -b±√(b²-4*a*c) / 2a

x = -(-3) ± √((-3)²-4*1*(-3)) / (2*1)

x= 3 ± √(9- -12) / 2

x=( 3 ± √21) /2
You might be interested in
Is 8:12 equivalent to 10:15
kirill115 [55]
No it’s not because they don’t go into the same multiples
8 0
3 years ago
Read 2 more answers
A water jug holds 8 quarts of water. The jug is shared evenly between 4 people. How many cups of water does each person get?
Elanso [62]
Answer: 8 cups each

explanation: 1 quart= 4 cups
8 quarts=32 cups
32 cups/ 4 people= 8 cups each
6 0
3 years ago
X + y = 24
Masja [62]

Answer:

(10, 14)

Step-by-step explanation:

To solve this system let's use substitution:

Solve the first equation for x, obtaining x = 24 - y, and then substitute 24 - y for x in the second equation:

3(24 - y) + 5y = 100

Performing the indicated multiplication, we get:

72 - 3y + 5y = 100

Combining like terms results in 72 - 100 = -2y, or -28 = -2y

Thus, y must be 14.

If y = 14, then the first equation tells us that x = 10.

Check:  Is this true?  3(10) + 5(14) = 100  YES

The solution is (10, 14).

What was it about the questions on the best that you were supposed to compare to this solution?

8 0
3 years ago
Solve the inequality.
Dima020 [189]

Answer:

Step-by-step explanation:

x + 8 < - 28

x < - 28 - 8

x < - 36

Option A is the correct answer

3 0
2 years ago
3x − 2y = 18<br> y = 2x − 13
jenyasd209 [6]

Answer:

x = - 8

3x - 2y = 18 is the same as 3x - (2x - 13 times 2) = 18

Then I used an algebra site for the rest.

It should be x = - 8

3 0
2 years ago
Read 2 more answers
Other questions:
  • PLEASEEE Find the angles
    14·2 answers
  • The radius of a sphere is 11 cm.what is the surface area of the sphere? Round to the nearest tenth.
    8·1 answer
  • (10 points) State the relationship between segments MA and TH. Explain.
    6·1 answer
  • Evaluate the following expression. Round your answer two decimal places. Log3(10)
    11·2 answers
  • 4. Which of the following equations represent
    10·1 answer
  • Helppp will mark brainliestttt
    12·1 answer
  • HURRY PLEASE
    6·1 answer
  • IF U NEED ANY POINTS JUSF ANSWER THIS!! YOURE WELCOME
    12·2 answers
  • A ball is thrown vertically upwards from the ground. It rises to a height of 10m and then falls and bounces. After each bounce,
    10·1 answer
  • Check solution <br><br> |3x+2|= 4x+5
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!