What is an discriminant

Mathematics

2 answers:

igor_vitrenko [27]2 years ago

8 0

Answer:

a function of the coefficients of a polynomial equation whose value gives information about the roots of the polynomial.

Nonamiya [84]2 years ago

4 0

A function of the coefficients of a polynomial equation whose value gives information about the roots of the polynomial.

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A more than 6 is -30 solve problem

erastovalidia [21]

Answer:

a = =36

Step-by-step explanation:

a + 6 = -30

make a on its own

a = -30 - 6

a = =36

8 0

3 years ago

Factor completely: 64 - y^3

madam [21]

From your equation, you can see that you have a difference of two cubes (aka two cubes being subtracted): 64, which is $4^{3}$ , and $y^{3}$ .

There is rule for the difference of two cubes:
The difference of two cubes is equal to the difference of the cube roots times a binomial, which is the sum of the squares of the roots plus the product of the roots.

That sounds pretty confusing, but it's much easier to understand when put mathematically. Let's say our two cubes are $a^{3}$ and $b^{3}$ . The difference of those two cubes is:
$a^{3} - b^{3} = (a - b)( a^{2} + ab + b^{2})$

In our problem, a = 4 (since $a^{3}$ = 64) and b = y (since $b^{3} = y^{3}$ . Plug these values into the rule to find the factor of $64 - y^3$ :
$64 - y^3 \\
= (4 - y)( 4^{2} + 4y + y^{2}) \\
= (4 - y)( 16 + 4y + y^{2})$

-----

Answer: $(4 - y)( 16 + 4y + y^{2})$

8 0

2 years ago

Two submarines are underwater. The number -4,845 represents Submarine A's position (in feet) relative to the surface. The number

kolbaska11 [484]

Answer

Step-by-step explanation:

because submarine b has a bigger negative number so its more further down

6 0

3 years ago

Which expression is equivalent to (4g3h2k4)3

RSB [31]

Answer: