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
Scilla [17]
4 years ago
13

Use the quadratic formula to solve the equation x2+7x​

Mathematics
1 answer:
monitta4 years ago
4 0

The solution of the equation x2+7x​ is 0, -7 using the quadratic formula.

Step-by-step explanation:

x2 + 7x = 0

-b  ± √ b2 - 4(ac)/ 2a

substitution,

a = 1, b = 7, c = 0

= -7  ± √(7)2 - 4(1 x 0) / 2 x 1

= - 7   ± 7 / 2

x = 0 , -7

You might be interested in
Hello, just need the answer for this question. Thank you for your help if you do so.
musickatia [10]

Answer:

In the first one you are missing (x - 3) so it will be 4(x - 3) and if you factor it out it will be 4x - 12

In the second one you are missing a (x -5)which means 9x(x -5) or when you factor it out it will be 9x^2 - 45x

Step-by-step explanation:

3x^2 -23x + 40 = (3x - 8) (x - 5)

3x^2 -17x + 24 = (3x -8) ( x - 3)

7 0
3 years ago
Help meeee!!!!!!!!!!!!!!!!!!!
Ivenika [448]

Answer:

Y=-2x

When x= -6 then y =12

Step-by-step explanation:

If y and x in direct variation then y=c*x for some constant c.

We are told

-4=c2

——> c= -2

So y= -2x

When x= -6 this becomes

Y= (-2) * (-6)

——> y = 12


8 0
3 years ago
Identify an equation in point slope form for the line parallel to y=1/2x-7 that passes through (-3,-2)
ANTONII [103]

Answer:

Step-by-step explanation:

The point slope form of a straight line is expressed as

y - y1 = m(x - x1)

Where

m represents slope of the line

y1 represents the initial value of y

x1 represents the initial value of x

If two lines are parallel, it means that they have the same slope. From the equation of the given line, slope = 1/2

Therefore,

m = 1/2

x1 = - 3

y1 = - 2

Substituting into the point slope equation, it becomes

y - - 2 = 1/2(x - - 3)

y + 2 = 1/2(x + 3)

The equation is

y + 2 = 1/2(x + 3)

4 0
3 years ago
Which is the more reasonable measure for the length of a car?<br> 50m<br> 5cm<br> 5m<br><br> Thanks
Roman55 [17]

Answer:

5m

Step-by-step explanation:

8 0
2 years ago
What is 12765x6748+6789
slava [35]
Every calculation with multiple operations must abide to BODMAS (Brackets, Other, Divide, Multiple, Addition, Subtraction)

Thus we would multiple first, giving us 86138220. Then we would add giving us: 86145009
3 0
3 years ago
Read 2 more answers
Other questions:
  • The acute angles of a ________ triangle are complementary
    9·1 answer
  • Find the polar coordinates of the points with cartesian coordinates (−x, y).
    14·1 answer
  • A soccer ball was kicked in the air and follows the path h(x)=−2x2+1x+6, where x is the time in seconds and h is the height of t
    5·2 answers
  • PLEASE SOMEONE HELP ME ON THIS
    12·2 answers
  • State if the given binomial is a factor of the given polynomial.<br> (2x^3-2x^2+3x-2)/(x-2)
    13·1 answer
  • Please help me 1,2,3 or 4 need ASAP.
    11·1 answer
  • Multiple choice geometry help trig ?!!!!!!!!
    12·1 answer
  • Help plsss and hurry
    9·1 answer
  • This is the last one!
    11·1 answer
  • If 3x – 9y = -5 is a true equation, what would be the value of 4(3x – 9y)?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!