Can somebody give me the answers to all of these pls rn

Solution,

= 3x^2+5x-6-x^2+3x+9

= 3x^2-x^2+5x+3x-6+9

=2x^2+8x+3

2. x^2-10x-24

= x^2-(12-2)x-24

= x^2-12x+2x-24

= x(x-12)+2(x-12)

=(x-12)(X+2)

3. 3x^2-9x

take the common,

= 3x(x-3)

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the lateral surface area of a sphere is 2πrh where h=2r.

then:

surface area = 4πr^2.

in this case, r=8 units ⇒ surface area = 4π(8 units)^2. = 256π sq. units!

then, the surface area of the sphere shown in the image is: 256π sq. units!

domain is all the x values included in the

0 ≤ x ≤ 2

range is all the y values of the graph

-2 ≤ y ≤ 2

***keep in mind that there are different ways to show domain and range

hope this !

~just a girl in love with shawn mendes