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
PSYCHO15rus [73]
3 years ago
9

42. Use the Quadratic Equation to find the Roots of x2 + 3x - 3=0

Mathematics
1 answer:
almond37 [142]3 years ago
8 0

Answer:

Step-by-step explanation:

The coefficients of the x terms are {1, 3, -3}, so the discriminant, b^2 - 4ac, is 3^2 - 4(1)(-3), or 9 + 12, or 21.  The positive nature of the discriminant tells us that there are two real, unequal roots.  Following the quadratic formula, we get:

       -3 ± √21

x = -----------------

              2

You might be interested in
One side of a rectangle is five times as long as the other side. If the perimeter is 72 meters, what is the length of the shorte
Yakvenalex [24]
6 meters

72 = x+x+5x+5x
72 = 12x
6 = x 
the shorter side is 6 meters
3 0
3 years ago
Read 2 more answers
Copy and complete:<br> __:11= 1/3 :6
Aleksandr [31]

Answer:

11/18:11=1/3:6

Step-by-step explanation:

x:11=x/11 so

x/11=1/3/6

x /11=1/3*6

x=11/18

7 0
3 years ago
I need an answer ASAP plzzzzzz
valkas [14]

Answer:

F to B Your welcome :)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Complete the table of values fory=2x^2+x
Semmy [17]

Complete question:

y = 2x² + 2x - 3

x = -2 -1 0 1 2

Answer:

<u>Complete table of values</u>

x:   -2        -1         0          1          2

y:    1          -3       -3          1         9

Step-by-step explanation:

Given;

y = 2x² + 2x - 3

To complete the table of values of the equation above, we substitute the value of x into the given equation and solve for y.

when, x = -2

y = 2(-2)² + 2(-2) - 3

y = 8 - 4 - 3

y = 1

when x = -1

y = 2(-1)² + 2(-1) - 3

y = 2 - 2 - 3

y = -3

when x = 0

y = 2(0)² + 2(0) - 3

y = 0 - 0 - 3

y = -3

when x = 1

y = 2(1)² + 2(1) - 3

y = 2 + 2 - 3

y = 1

when x = 2

y = 2(2)² + 2(2) - 3

y = 8 + 4 - 3

y = 9

<u>Complete table</u>

x:   -2        -1         0          1          2

y:    1          -3       -3          1         9

7 0
3 years ago
3. Label the matrix according to the dimensions. *
Lelechka [254]
Add a picture please
8 0
3 years ago
Other questions:
  • Cody was 165cm, {cm}165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school
    8·2 answers
  • A distributive property for 7 times 63
    9·2 answers
  • What is the inverse of f(x)= √3x+4 -1? (The -1 is separate and not part of the square root) √3x+4
    5·1 answer
  • Twice the diffrence of a number and 9 is equal to three times the sum of the number and 5. Find the number
    11·1 answer
  • What is the angle "d" pleaseeee???​
    6·2 answers
  • A linear equation through the origin with a slope of negative three
    9·2 answers
  • Amswerrrr and show workkkkk thanky ou this the last question ​
    11·2 answers
  • 6. The octopus was swimming 3 feet below the surface. If the octopus swam up 3
    14·2 answers
  • Someone please help me with this worksheet
    9·2 answers
  • Em dois retângulos semelhantes, a ampliação foi de 10 cm por 12 cm, para 20 cm por 24 cm, qual a razão de semelhança (K)?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!