3 years ago

f(x)= -4x^2+10x-8 what is the value of the discriminant of f how many distinct real number zeros does f have

Mathematics

1 answer:

Mazyrski [523]3 years ago

4 0

Answer:

Step-by-step explanation:

The function is f(x) = -4x²+10x-8

Let Δ be our the dicriminant

Δ= b²-4ac
b = 10
a = -4
c = -8
Δ = 10²-4*(-4)(-8)
Δ = 100-128
Δ = -28

The value of the discriminant is -28 and since it is negative this function has no real zeroes

You might be interested in

Please tell me the answer

Tpy6a [65]

Answer:

(3.5, 3) and (0,-4)

Step-by-step explanation:

Zeros are the points that are on the x-intercept. The points not on the x-intercept are (3.5, 3) and (0,-4)

6 0

3 years ago

Trisha bought a pair of shoes for $40 and a blouse for $35. Trisha's purchases are subject to a sales tax rate of 8.75%. Includi

Margarita [4]

$40+$35=$75
75/100*8.75=6.5625
6.5625+75=81.5625
approximately equal to $81.56

5 0

3 years ago

The shirt costs twice as much as the shoes. Together, they cost more than $200. What is the minimum cost for each item? (Round t

miskamm [114]

$200 because you can't round toe the nearest dollar

4 0

3 years ago

Read 2 more answers

What’s three points that satisfy the system of inequality’s of 4x+6y<24

Vlada [557]

Answer:

(0,0), (1,1), (2,2)

Step-by-step explanation:

When testing to find possible points in situations like this, I always start by testing with the origin point (0,0).

In this case:

4x+6y<24 ==> 0 + 0 < 24 TRUE, it satisfies the inequality.

We then try with (1,1):

4x+6y<24 ==> 4 + 6 < 24 TRUE, it satisfies the inequality.

And with (2,2):

4x+6y<24 ==> 8 + 12 < 24 TRUE, it satisfies the inequality.

8 0

2 years ago

I have homework and i dont understand it its called "Solving Systems of Equations by Elimination." The problem im stuck on is

Goshia [24]

8x + y = -16 ;
3x - y = 5 ;
____________(+)
11x = -11;
x = - 11 / 11 ;
x = - 1;
y = -5 + 3 * ( - 1 ) = - 8.

8 0

3 years ago