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
Tomtit [17]
4 years ago
6

It is given that -3 is one of the roots of the quadratic equation x square -4x-h=0.find the value of h

Mathematics
1 answer:
elena-14-01-66 [18.8K]4 years ago
5 0
Since -3 is one of the roots, that means it would satisfy the equation.

x^2 - 4x - h = 0,    substitute x = -3.

(-3)^2 -4(-3) - h = 0
9  +  12  -  h      = 0
21 - h = 0
21 =  h.
h  = 21.
That's the value of h.  Cheers.
You might be interested in
Write an equation for the line below​
zimovet [89]

Answer:

y = 1/3x - 3

Step-by-step explanation:

Two points are (0, -3) and (-6, -5)

Slope formula [ y2-y1/x2-x1 ]

-5-(-3)/-6-0

-2/-6

1/3

y = 1/3x - 3

Best of Luck!

6 0
4 years ago
What is this answer to 27
anygoal [31]
-3w times -3w = -9w
-9w + 11

5 0
4 years ago
Read 2 more answers
Probability digital escape
svlad2 [7]

Answer:u multiply by hdhfhf

Step-by-step explanation:

6 0
3 years ago
If 7 gallons of paint are used to paint 4 classrooms at Cascade Middle
denis-greek [22]

Answer: 28 gallons of paint needed to paint 16 classrooms.

Step-by-step explanation:

As 7 gallons Paint 4 classrooms so if we need to paint 16 classrooms which four times 4 classrooms so 7*4=28 gallons will be needed to paint 16 classrooms

7 0
3 years ago
What is the exact distance from (–4, –2) to (4, 6)? A. 24−−√units
aliina [53]
I hope this helps you

7 0
3 years ago
Read 2 more answers
Other questions:
  • Teen obesity:
    6·1 answer
  • What is the fraction that is simplified of 39 over 8
    13·1 answer
  • An aluminum can is a right cylinder. Find the amount of paper needed for the can's label and the total
    7·1 answer
  • Whats the area of a circle if the diameter 6
    9·2 answers
  • Divide. 0.78÷106 <br> 0.00078 <br> 0.000078 <br> 0.0000078 <br> 0.00000078
    14·1 answer
  • PLEASSEE HELLP<br><br> A. Absolute value<br> B. Cubic<br> C. Quadratic<br> D. exponential
    7·1 answer
  • Find the measure of &lt;A​
    9·1 answer
  • Is (6,5) for y = 5x - 25 a solution
    9·1 answer
  • Find the value of given expression<br><br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B44%20%2B%2077%7D%20" id="TexFormula
    14·2 answers
  • You and your friend enjoy riding your bicycles. Today is a beautiful sunny day, so the two of you are taking a long ride out in
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!