Answer:
Yes
Step-by-step explanation:
Anything that ends in an even number is divisible by 2.
-4 and 2.
(-4)(2) = -8
-4+2= -2
Answer:
4x² - 57x + 206
Step-by-step explanation:
To evaluate (t ○ s)(x), substitute x = s(x) into t(x) , that is
t(x - 7)
= 4(x - 7)² - (x - 7) + 3 ← expand (x - 7)² using FOIL
= 4(x² - 14x + 49) - x + 7 + 3
= 4x² - 56x + 196 - x + 10 ← collect like terms )
= 4x² - 57x + 206
Answer:
let's use Pythagoras theorem,
h²=b²+l²
so,
ad²=ac²+dc²
6²=ac²+3²
36-9=ac²=27
√27 can be written as 3√3,
hence ac= 3√3