3 years ago

A quadratic equation is shown below:

1 answer:

7 0

hello :

help :
the discriminat of each quadratic equation : ax²+bx+c=0 ....(a ≠ 0) is :
Δ = b² -4ac
1 ) Δ > 0 the equation has two reals solutions : x = (-b±√Δ)/2a
2 ) Δ = 0 : one solution : x = -b/2a
3 ) Δ < 0 : no reals solutions

You might be interested in

Decide whether ABC is a right angle triangle

muminat

The triangle is not a right angle

AC = 22 - 8 - 5 = 9
AC² = AB² + BC²
81 = 64 + 25
81 isn't equal to 89, the triangle is not a right angle

3 0

3 years ago

Read 2 more answers

Find the length of the missing side. Leave your answer in simplest radical form.

malfutka [58]

Solve for hypotenuse

Hypotenuse = $\sqrt{a^{2}+b^{2}}$

Substitute 3 for A and 4 for B
$\sqrt{3^{2}+4^{2}}$

Solve exponents
3^2 = 9
4^2 = 16
$\sqrt{9+16}$

Add
9 + 16 = 25
$\sqrt{25}$

Solve square root
$\sqrt{25}$ = 5
5 is your answer

5 0

4 years ago

Read 2 more answers

For football tryouts at a local school, 12 coaches and 42 players will split into groups. Each group have the same number of coa

melamori03 [73]

The biggest number of groups that can be formed is 6, because six is the greatest common factor of 12 and 42. There will be 2 coaches in each group because 6 x 2 = 12 and 7 players in each group because 7 x 6 = 42.

4 0

3 years ago

Read 2 more answers

I need help fast!!!

Andre45 [30]

The first one is 4 x 10^-9
second one is 4 x 10^10
third one is 5 x 10^7
fourth on is 2 x 10^-5

8 0

3 years ago

Write an equation of a line which is passing through the point (8, −6) and is parallel to another line, whose slope is −2

AlekseyPX

-6=-2(8)+b
-6=-16+b
10=b
Equation: y=-2x+b

8 0

3 years ago

Read 2 more answers