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:
3c + 2x + 11
Step-by-step explanation:
Step-by-step explanation:
step 1. what is 4^2?
step 2. 16.
Answer:
The answer is 0.45 pounds for an apple and 0.3 pounds for a pear
Step-by-step explanation:
Answer:
155.25 grams
Step-by-step explanation:
40 = X(½^(9/4.6))
X = 40 ÷ (½^(9/4.6))
X = 155.25 grams
