22 True For all real Numbers A and B, A - B = -B + A
23 True For all real Numbers P, Q, and R, P - Q - R = P - R - Q
24) True For all real Numbers X, Y, Z and (X + Y ) + Z = Z + (X + Y)
25) False For all real Numbers M and N, M/M * N = N/N ==> Example: 5/5 * 3 ≠ 3/3 * 5
26) Examples:
Counterexamples =====> 5 - 0 = 5; 5/1 = 5
5 - 3 ≠ 3 - 5; (5 - 3 ) - 2 ≠ 5 - (3 - 2 );
6/3 ≠ 3/6; (24/6 )/2 ≠ 24/ (6/ 2 )
Hope that helps!!!! : )
I’m not sure if you are doing ratios and proportion but this is my answer:
30/100 = n/560
30 x 560 = 16,800
16,800 ÷ 100 = 168
Reinel saves $168 last week
Answer:
cotθ = 
Step-by-step explanation:
sine = opposite / hypotenuse
cotangent = adjacent / opposite
So first we have to solve for the adjacent side b, using pythagorean theorem
cotangent = adjacent / opposite
cotθ =
Answer:
intersection is (1,5)
Step-by-step explanation:
plug one equations into the other
y=2x+3
3x+y=8
3x+2x+3=8
simplify
5x+3=8
subtract 3
5x=5
x=1
plug x into one equation
y=2+3=5
intersection is (1,5)
