You have to me more specific with this question
Answer:
D
Step-by-step explanation:
Let me know if it's correct
The answer would be 3.
In order to find this you must place the values in where you see the letters. So start with the letters and plug in.
mx - y
Since m = 1, put that in.
(1)x - y
Since x = 5, put that in
(1)(5) - y
Since y = 2, put that in
(1)(5) - (2)
Now follow the order of operations and solve
(1)(5) - 2
5 - 2
3
Answer:
15 Kg cm²
Step-by-step explanation:
Given that V varies inversely with P then the equation relating them is
V = 
← k is the constant of variation
To find k use the condition
V = 360, P = 20, then
360 = 
( multiply both sides by 20 )
k = 7200
V = 
← equation of variation
When V = 480, then
480 = ( multiply both sides by P )
480P = 7200 ( divide both sides by 480 )
P = 15
Answer:
21^2 − 14 − 7
Step-by-step explanation:
(3+1)(2+5−7)
(3x+1)({\color{#c92786}{2x}}+{\color{#c92786}{5x}}-7)
(3x+1)(2x+5x−7)
(3+1)(7−7)
(3x+1)({\color{#c92786}{7x}}-7)
(3x+1)(7x−7)
2
Distribute
3
Distribute
again
4
Multiply by 1
5
Combine like terms
Solution
21^2 − 14 − 7
