All categories

3 years ago

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

Mathematics

1 answer:

erastova [34]3 years ago

5 0

Answer:

Step-by-step explanation:

For a quadratic of the form

ax² +bx +c = 0

The "discriminant" is the expression ...

b² -4ac

For this equation, we have a=1, b=5, c=7, so the discriminant is ...

5² -4·1·7 = -3

When the discriminant is negative there will be two distinct complex roots to the equation, and no real roots.

_____

When the discriminant is zero, there will be one real root with multiplicity 2; when it is positive, there will be two distinct real roots.

You might be interested in

Find the value of x.

slavikrds [6]

Answer:

$x=11$

Step-by-step explanation:

we know that

The <u><em>Midpoint Theorem</em></u> states that the segment joining two sides of a triangle at the midpoints of those sides is parallel to the third side and is half the length of the third side.

In this problem

$(x+5)=\frac{1}{2}(3x-1)$

solve for x

Multiply by 2 both sides

$2x+10=3x-1$

subtract 2x both sides

$10=3x-1-2x$

$10=x-1$

Adds 1 both sides

$x=11$

3 0

2 years ago

A farmer has 500 feet of fencing to enclose a rectangular

gizmo_the_mogwai [7]

Answer:

Becoming a square will cause in the sides to grow higher and become taller therefore.

Step-by-step explanation:

7 0

2 years ago

Angela recorded the increase in temperatures outside her home each hour for 8 hours in this table.

Soloha48 [4]

It is 50.6 ferry hight

7 0

3 years ago

Read 2 more answers

Please help with this. I will give you 5 score

castortr0y [4]

(2x2) + 4((3x2)/2) = 4 + 12 = 16 in^2

4 0

2 years ago