3 years ago

What Are the solutions of the following system?

Mathematics

1 answer:

ankoles [38]3 years ago

3 0

Answer:

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

Step-by-step explanation:

You might be interested in

A bag contains 10 red marbles, 8 blue marbles and 2 yellow marbles. Find the theoretical probability of getting a yellow marble.

Rzqust [24]

(number of yellow marbles) / (overall number of marbles)
=
2/20

7 0

2 years ago

The function Q(x)=2x^2-kx+18. For what value of k does Q(x) have one distinct real solution? (NEEDS TO BE DONE WITHIN 2 HOURS!)

Aliun [14]

Answer:

k = 12

Step-by-step explanation:

Given:

The equation $Q(x)=2x^2-kx+18$

To find:

Value of $k = ?$ for which the given equation has one distinct real solution.

Solution:

The given equation is a quadratic equation.

There are always two solutions of a quadratic equation.

For the equation: $ax^{2} +bx+c=0$ to have one distinct solution:

$b^2 - 4ac = 0$

Here,

a = 2,

b = -k and

c = 18

Putting the values, we get:

$(-k)^2 - 4\times 2\times 18 = 0\\\Rightarrow k^2 = 18\times 8\\\Rightarrow k^2 =144\\\Rightarrow k = 12$

The equation becomes:

$Q(x)=2x^2-12x+18$

And the one root is:

$2(x^2-6x+9 ) = 0\\\Rightarrow 2(x-3)^2=0\\\Rightarrow x = 3$

4 0

3 years ago

Which set of sides will make a triangle

ElenaW [278]

Answer:

the third one 10 cm, 9cm 9cm

6 0

3 years ago

Find the value of x and show work

Oksana_A [137]

Step-by-step explanation:

35+35+x=180 (sum of interior angles of an triangle is 180

therefore

x=180-70

x=110

3 0

3 years ago

NEED HELP ASAP WILL GIVE HIGH REWARD

VikaD [51]

The answer for this is is 35 370 93 and i got that now by using guzmos

4 0

1 year ago

Read 2 more answers