Answer:
20 degrees
Step-by-step explanation:
9 - (-11) = 20 degrees
Answer:
should be 12 if the x and y are squared. If you meant 2x and 2y than 12 is incorrect.
Step-by-step explanation: 144=r^2.
Answer:
when multiplying by 10 just move up by one zero
This sequence (1.6, 0.8, 0.4, 0.2,... ) is geometric.
We have formula for any member of geometric sequence:

If a1=1.6 then:

The solution for all these equations is: q=0.5. We have: a1=1.6, q=0.5 and this is geometric sequence.
2.4x10 to the power of -10