Answer:
use desmos online. itll graph it for you.
Step-by-step explanation:
2n + 9
let the number be n then twice the number is 2 × n = 2n
and 9 more than this means add 9 to, hence 2n + 9 is the expression
Answer:
80,000 + 6,000 + 500 + 3
Step-by-step explanation:
Expand so that all non-zero digits are by itself. Remember to retain it's place value:
86503 = 80,000 + 6,000 + 500 + 3
~
Answer:
C) 4/15
Step-by-step explanation:
The two equations ...
- 2x + 1/2y = 2
- 1/2x + 2y = 6
can be solved for x using Cramer's rule:
x = (2·2 -1/2·6)/(2·2 -1/2·1/2) = (4-3)/(4-1/4) = 1/(15/4)
x = 4/15
_____
Cramer's rule for the solution to ...
is ...
- ∆ = ae-db
- x = (ce -fb)/∆
- y = (fa-dc)/∆
Maybe use a ruler To find the area and add them together to fin the volume.
