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3 years ago

F(x)=4x 2 +2x+6 How many distinct real number zeros does f have?

Mathematics

2 answers:

hoa [83]3 years ago

6 0

Answer:

It has 0 distinct real number zeros. The function does not touch the x-axis

Ierofanga [76]3 years ago

4 0

Answer:

NO real zeros for this quadratic function.

Step-by-step explanation:

We can answer this questions looking at the discriminant ( $b^2-4ac$ ) associated with this quadratic function: $f(x) =4x^2+2x+6$

Discriminant is: $b^2-4ac=(2)^2-4(4)(6)=4-96=-92$

Since we get a negative answer, this means that there are NO real solutions to this quadratic function (No real zeros). The zeros are complex numbers.

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Evaluate the following expression using the given value of the variables

bogdanovich [222]

256 is the answer hope that helped.

4 0

3 years ago

Which is the correct ?

melomori [17]

Answer:

it is the 1st one

Step-by-step explanation:

because you have to add up all three sides because you need 180 then subtract that answer from 180 and you will get your answer

7 0

3 years ago

Through: (-3,-5), parallel to y = 2x + 2

Archy [21]

Answer:

y = 2x + 1

Step-by-step explanation:

Since you have an equation and a point, all you need to do is substitute the coordinates into the equation and then solve for the y-intercept (or "b"):

y = mx + b

y = 2x + 2

(-3, -5)

-5 = 2(-3) + b

-5 = -6 + b

-5 + 6 = b

b = 1

Now you have your final equation:

y = 2x + 1

*Remember that parallel lines have the same slope, so finding a new slope is not needed!

4 0

3 years ago

I have no idea what this is. <br><br> g(-9)

vladimir2022 [97]

They are asking for the y coordinate of the g I guess
If that is the case, the answer is 1

3 0

3 years ago

A border of uniform width is placed around a rectangular photograph that measures 8 inches by 10 inches. If the area of the bord

amid [387]

Answer:

width of the border is 3 inches

Step-by-step explanation:

Given data

size = 8 inches by 10 inches

area = 144 square inches

to find out

width of the border

solution

first we consider width of border is x

area of new full rectangle = (8 + 2x ) × ( 10 + 2x )

so we know area of photo = 8 × 10 = 80 square inches

and area of border = 144 square inches that is given

so new area of photo with the border is 80 + 144 = 224 square inches

and we can say that

area of full rectangle - area of the photograph = Area of Border

(8 + 2x) × (10 + 2x) – (80) = 144 square inches

80 + 16x + 20x + $4x^{2}$ – 80 = 144

$4x^{2}$ + 36x – 144 = 0

solve thios equation we get

$2x^{2}$ + 9x – 36 = 0

solve thios equation we get

(x + 12) (x – 3) = 0

so here x have two value one is negative and other is positive

so we consider only positive value

x = -12 or x = 3

width of the border is 3 inches

7 0

3 years ago