Answer:
xn = n·(n + 1)/2
Step-by-step explanation:
X ·2 = 12x - 15
2x = 12x - 15
2x + (-12x) = (12x - 15) + (-12x)
Result: x = 3/2
Answer:
3. adjacent; 49
4. adjacent; 71
5. verticle; 41
6. adjacent; 14
Step-by-step explanation:
ok basically if the angles are next to each other, then they're adjacent and if they're across from eachother they're verticle.
to find 3:
set both equations equal to each other and solve because verticle angles are equal
to find 4:
add the 2 equations together and set it equal to 180 because adjacent angles add up to equal either a complementary angle or supplementary depending on the problem
Answer:
Step-by-step explanation:
49 | 43 | 92
75 | 38 | 113
124 | 81 | 205
The annual interest would be $24 since 120=5 years, 120 divided by 5 equals 24
