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
Vedmedyk [2.9K]
3 years ago
6

It is given 5 and h + 1 are the roots of the quadratic equation x² + (k - 1)x - 5 = 0,where h and k are constant.Find the value

of h and k.
pls help me,i'll mark u as the brainliest!​
Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
6 0

Answer:

Hello,

<u>k=-3 and h=-2</u>

Step-by-step explanation:

5\ is\ a \ root \of \ x^2+(k-1)*x-5=0\\\\5^2+(k-1)*5-5=0\\\\5*(k-1)+20=0\\\\k-1=\dfrac{-20}{5} \\\\k=-4+1\\\\\boxed{k=-3}\\

h+1 is thus a root of x²+(-3-1)*x-5=0

x²-4x-5=0

x²+x-5x-5=0

x(x+1)-5(x+1)=0

(x+1)(x-5)=0

h+1=-1

<u>h=-2</u>

You might be interested in
in the 2010 new york city marathon 42429 people finished the race and received a medal before the race the medals had to be orde
Rufina [12.5K]
Xxxxxxxxxcxxxxxxxxxxx
5 0
3 years ago
Which system of linear inequalities is represented by the
Alex17521 [72]

Answer:

The answer is "y > x-2 and y < x + 1"

Step-by-step explanation:

In the given question the last choice, that is "y > x-2 and y < x + 1" which can be defined in the following diagram.

7 0
3 years ago
How do you substitute x+y=2 3x+2y=5
Monica [59]
Here's how you solve this.  So, x+y=2, right?  Let's isolate x.  x+y-y=2-y.  x=2-y.  NOW, if x=2-y, in 3x+2y=5, we can REPLACE x with 2-y and use it to solve for y!  3x+2y=5.  3(2-y)+2y=5.  (3*2)+(3*-y)+2y=5.  6+(-3y)+2y=5.  6+(-y)=5.  6+(-y)-6=5-6.  -y=-1.  -y/-1=-1/-1.  y=1.

So, if y=1, we can substitute that back into either equation--but let's go with the easier one, x+y=2.  x+1=2.  x+1-1=2-1.  x=1.  1+1=2, so that works; let's check the other equation.  3(1)+2(1)=5.  3+2=5.  5=5.  That's correct!

Answer: x=1, y=1
4 0
2 years ago
Read 2 more answers
Whats the area of the triangle? (10,8,12.8)
statuscvo [17]

Answer:

LXBXH

AREA=10X8X12.8

AREA=1024

4 0
2 years ago
If 6+7=41 then what is 7+8=
Tamiku [17]

Answer:

55 maybe?

Step-by-step explanation:

6*7=42

42-1=41

Then

7*8=56

56-1=55

5 0
3 years ago
Other questions:
  • Which facts are true for the graph of the function below? Check all that apply. F(x) = log6 x
    13·2 answers
  • 1% of what number is 7
    6·1 answer
  • Identify parts of expression: 20+5×9
    5·1 answer
  • If 3x+7=x-1, then does x = -4?
    13·2 answers
  • On which number line do the points represent negative seven and one over two and +1? Number line from negative 10 to positive 10
    5·2 answers
  • THIS IS EXTREMELY URGENT PLEASE ANSWER
    6·1 answer
  • Berry Delicious is a popular shop that sells chocolate-covered strawberries. Last year, the shop used 6,820 kilograms of strawbe
    11·1 answer
  • What two numbers give you the difference of 4 and the sum of 58?​
    15·1 answer
  • The lengths of the sides of a triangle are 8m, 10m, 12m. What are the lengths of the sides of a similar triangle that has a peri
    10·2 answers
  • 7. Calculate the volume of the triangular prism on the right.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!