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2 years ago

What is the solution to the system of equations?

Mathematics

1 answer:

Airida [17]2 years ago

4 0

Answer:

take a brain break

Step-by-step explanation:

take a drink from the fridge add some refreshing ice sqeeze the the living heck out ur ju and enjoy some sugur in it and enjoy

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I'm stuck :/ help hurry

Free_Kalibri [48]

Answer: i think A is negative -2 and B is -19 hope this help im not a hundred percent sure if i got it wrong please let know.

Step-by-step explanation:

4 0

3 years ago

Factor the following polynomial completely.

stiv31 [10]

Answer:

10x^2 (x+2) (x+6)

Step-by-step explanation:

assuming you meant 120 not 1120

10x^4+ 80x^3 + 120x^2

factor out 10 x^2

10x^2 (x^2 +8x+12)

what numbers multiply together to get 12 and add together to get 8

2*6 = 12 2+6 = 8

10x^2 (x+2) (x+6)

B and D are the same answer?????

3 0

3 years ago

3) Solve each equation using the quadratic formula. Show<br> a. x2 – 3x – 10 = 0

Naya [18.7K]

Answer:

Step-by-step explanation:

The quadratic formula of a quadratic equation

$ax^2+bx+c=0\\\\\text{If}\ b^2-4ac>0\ \text{then the equation has two solutions}\ x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

$\text{If}\ b^2-4ac=0\ \text{then the equation has one solution}\ x=\dfrac{-b}{2a}$

$\text{If}\ b^2-4ac$

We have:

$x^2-3x-10=0\to a=1,\ b=-3,\ c=-10\\\\b^2-4ac=(-3)^2-4(1)(-10)=9+40=49>0\\\\x=\dfrac{-(-3)\pm\sqrt{49}}{2(1)}=\dfrac{3\pm7}{2}\\\\x=\dfrac{3-7}{2}=\dfrac{-4}{2}=-2\\or\\x=\dfrac{3+7}{2}=\dfrac{10}{2}=5$

5 0

3 years ago

A dance instructor wants 8 costumes to be yellow and 24 costumes to be blue. What is the ratio of blue costumes to yellow costum

Mars2501 [29]

3:1

because...
8/8=1 and 24/8=3

8 0

3 years ago

Is 1/4 the answer to this what ratio forms a porportion with 8/36

Svetlanka [38]

No.
1/4 would be proportional to 9/36.

8/36 can be simplified to 4/18, and further reduced to 2/9.

3 0

3 years ago