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
lesya [120]
2 years ago
8

4x^2+2xy-10y^2+9=0 what is the value of a,b,c and the discriminant?

Mathematics
1 answer:
zavuch27 [327]2 years ago
6 0

basically you treat y like a number and not a variable

Answer:

a is 4

b is 2y

c is -10y²+9

discriminant is 4(41y²-36)

Step-by-step explanation:

4x²+2xy-10y²+9=0

rewrite in standard form of a quadratic equation like ax² + bx + c = 0

4x²+2yx-10y²+9=0

basically you treat y like a number and not a variable

a is the number with the x²

right away we know a is 4 because of 4x²

b is the one with x so in this formula b is 2y

c is the number without the x which in this case is -10y²+9

discriminant is

b² - 4ac

(2y)²- (4)(4)(-10y²+9)

4y²-(16)(-10y²+9)

4y²-(16)(-10y²+9)

4y²+160y²-144

164y²-144 =

4(41y²-36)

You might be interested in
What 3 digits are in the units period of 4,083,817
insens350 [35]
4, 3, 7 I hope this helped :)
6 0
2 years ago
Mrs. Torres wants to know how many students wear thelr uniforms. In order to gather data, she stands by the front door and recor
Mekhanik [1.2K]

Answer:

Observational Study

Step-by-step explanation:

Because she stands by the front door and records each student

5 0
2 years ago
Find the distance between the points (-21, 17) and (33, 17)
Norma-Jean [14]
Plug it into the distance formula.

d= (sqrt) (x2-x1)^2 +(y2-y1)^2

d= (sqrt) (17-17)^2 + (33-(-21)^2
d=(sqrt) (0)^2 + (33 +21)^2
d= (sqrt) (54)^2
d= (sqrt) 2916
d=54

The distance is 54 units. 

I hope this helps!
~kaikers
7 0
3 years ago
Pleaseee I need help on this one too
erastova [34]
I can't exactly see if the 10 at the end is negative, but I'm going to assume that it is.
10x - 6y = 8
5x - 10y = -10
= (2, 2)
} I hope this helped! {
5 0
3 years ago
Given h(x) = |x+3| -5
statuscvo [17]

Answer:

The parent function f(x) is equal to f\left(x\right)=\left|x\right|

The translations is 3 units to the left and 5 units down

Step-by-step explanation:

we have

h\left(x\right)=\left|x+3\right|-5

The vertex of the function h(x) is the point (-3,-5)

we know that the parent function f(x) is equal to

f\left(x\right)=\left|x\right|

The vertex of the function f(x) is the point (0,0)

so

The rule of the transformation of f(x) to h(x) is equal to

(x,y) -----> (x-3,y-5)

That means ----> The translations is 3 units to the left and 5 units down

4 0
3 years ago
Other questions:
  • What is the asset that cannot be seen or touched but has a monetary value known as?
    10·2 answers
  • What is 2/3 of 6 days?
    7·2 answers
  • A heptagon can be divided into how many triangles by drawing all of the diagonals from one vertex?
    9·2 answers
  • Is the answer a, b, c, or d.
    10·1 answer
  • I need help with this problem x^2=7x+17 step by step using the “completing the square” method
    13·2 answers
  • HELLPP MEE PLEAASSEEE!!????
    5·2 answers
  • The circumference of a circle can be found using the formula C = 2r.
    15·2 answers
  • Percent of change
    13·1 answer
  • What is the quotient of
    7·1 answer
  • There are 3 1/3 pounds of bricks in a bag. Each brick weighs 5/6 of a pound. How many bricks are in the bag?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!