Answer:
Step-by-step explanation:

Answer:
7.99
Step-by-step explanation:
x^2 +3x
Let x=1.7
(1.7)^2 +3(1.7)
2.89+5.1
7.99
We have that
<span>f(x)=2x</span>²<span>+12x+16
using a graph tool
see the attached figure</span>
Answer:
7x-15
4x-3
4x-5
7x +25
Step-by-step explanation:
Step 1 : Simplify both sides
-5(6a+21)=-15
(-5)(6a)+(-5)(21)=-15
-30a-105=-15
Step 2 : Add 105 to both sides
-30a-105+105=-15+105
-30a=90
Step 3 : Divide both sides by -30
-30a=90
—————
-30 -30
a = -3