56 is a decimal part of 70. 56 = 4/5 = .8
Answer:
10 pizzas should be ordered
Step-by-step explanation:
60*2=120
120/12=10
Answer:
cos 0=90 degrees
Step-by-step explanation:
If sin of 90 is 1 then cos 90 is 0. Since sin and cos are like complementary angles they angles add up to 90 degrees.

and since sin 90 equal 1 cos of 0 equal 1.
What if we switch angles
Well they are still equal

But this time sin of 0 is 0 and cos 90 is 0.