F(3)=-18
You just replace x for three for your equation and then use Ofer of operations to solve it.
So f(3)= 21+ 2(3)-5(3)^2
The exponent goes first: f(3)= 21+ 2(3)-5(9)
Next is multiplication: f(3)= 21+ 6-45
Now add: f(3)= 27-45
Finally subtract: f(3)= -18
Hope this helps!
Answer:
42
Step-by-step explanation:
89-5=84
84÷2=42
and reverse it to check
(42+5)+(42)=89
Answer:
5x + 4
Step-by-step explanation:
Answer:
$1880.48 to the nearest cent.
Step-by-step explanation:
Total after n years = P(1 + r)^n where P = initial deposit, r = the rate as a fraction.
4 5/8 % = 0.04625.
Here the total after 5 years = 1500(1 + 0.04625)^5
= $1880.48 to the nearest cent.
