Answer:
4.47
Step-by-step explanation:
3x²+31=91
3x²=91-31
3x²=60
x²=60÷3
x²=20
x=√20
x=4.47
D.
-5(-1) + 2(2) = 5 + 4 = 9
-3 + 10 = 7
Answer:
Rows 126
last row has 41
last row is not full because its an odd number
Step-by-step explanation:
Answer:
ok
Step-by-step explanation:
ok