Answer:
78
Step-by-step explanation:
(-5)•(-5) + 3•21= 25+ 63= 78
Answer:
Step-by-step explanation:
x = 0.8 + 0.2y
Answer:
-1078
Step-by-step explanation:
To find the nth term in an arithmetic sequence we use the following formula
aₙ=a₁+(n-1)*d
Where a₁ is the first time, and d is the common difference (in this case -20)
So we have
2+(55-1)*-20
2+(54)*-20
2-1080
-1078
Answer:
98
Step-by-step explanation:
Add them all up. 60+20= 80+18 = 98.
Answer:
n<4+9
n<13
Step-by-step explanation: