Question

Round to the nearest tenth.

The value of z is the value of a2 − 3a when a = -5. Find the value of z2.

Answer 1

U just posted this...

Clarify the question, it is unclear.

Answer 2

this is what it says in my book

Answer 3

It say a2 or a with a little 2?

Answer 4

little 2

Answer 5

there is no z with the equation.

Answer 6

Read questio, saifoo..

Answer 7

my book must be cookoo

Answer 8

Lol, now i got it.

Answer 9

a^2 = -5*-5 = 25

-3a = -3*-5 =15

a2-3a = 40 =z

z^2 = z*z = 1600

Answer 10

i was correct Duck.

Answer 11

z = a2 − 3a

Answer 12

z = a2 − 3a
z = 25 - 15
z = 10

Answer 13

saifoo, a is negative....

Answer 14

http://www.wolframalpha.com/input/?i=a^2-3a%2C+a%3D-5

Answer 15

Lol,

Answer 16

then the answer is:

z = a2 − 3a
z = 25 -3(-5)
z = 25 + 15

z = 40

Answer 17

and z^2 is..?

Answer 18

z^2 = 1600..

lol..

Answer 19

You frightened him away...