9=n+3
Subtract 3 on each side
n=6
Answer:
n(number)= 0.70588235294
Step-by-step explanation:
doing 12/17 we get 0.70588235294 do n=0.70588235294x12=17
Answer:
ab² - 9
Step-by-step explanation:
Given in the question an expression
(ab + 3)(ab - 3)
To product mentally we will use polynomial identity called
Difference of squares
<h3>a² - b² = (a+b)(a-b) </h3>
here a = ab
b = 3
(ab + 3)(ab - 3) = ab² - 3² = ab² - 9
Answer:
8.25
Step-by-step explanation:
A=a+b
2h=6+5
2·1.5=8.25ft²