Given y=x2 + 9x + 20 find the zeroes.

Mathematics

1 answer:

Artyom0805 [142]3 years ago

3 0

Answer:

x=-5 x=-4

Step-by-step explanation:

y=x^2 + 9x + 20

We need to factor the equation

What 2 numbers multiply to 20 and add to 9

4*5 = 20

4+5 =9

y=(x+5) (x+4)

To find the zero's we set the equation equal to zero

0= (x+5) (x+4)

Using the zero product property

x+5 = 0 x+4=0

x=-5 x=-4

You might be interested in

Which best represent the solution for the inequality shown? x−2−3≤5

Murljashka [212]

Answer:

x≤10

Step-by-step explanation:

7 0

3 years ago

Can someone please explain expanded form with this number 15,409

Anarel [89]

The expanded form of 15,409 would be 15,000 + 400 + 9.

Your 15 would alone be 15,000. The 409 is turned into zeros.
For 409, take the 9 off of the end and keep it by itself, and then add a zero in replace for the 9, which makes 400.
The 9 should come in at the last part as it is the last number.

Add them all together and you should get <span>15,000 + 400 + 9.</span>

3 0

3 years ago

How many 1/2cups are in 7/8cups

frozen [14]

Answer:

Step-by-step explanation:

7/8) / (1/2) .when dividing fractions, flip what u r dividing by, then multiply

7/8 * 2 = 14/8 = 1 3/4 <==

4 0

2 years ago

If the volume of the square pyramid is 40 cubic millimeters, and the length of s is 2 millimeters, what is the length of the alt

ira [324]