Answer:
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Step-by-step explanation:
See the attached picture.
The negative sign in front of the 2 makes the graph an upside down U shape.
All you have to do is multiply 8 by 20 which is 160
Sin(x) = cos(90-x) , so the answer is 0.83 * 0.55
Answer: <B= 101, <C= 79, <D=101
Step-by-step explanation: all parallelograms have the diagonal angles equal so that is why <c=79. Parallelograms also have all angles equal to 360. so if you add <C, and <A you have 158. then you subtract that from 360 and you get 202. You then need to divide it by to to get the measures of angles B and D which are 101 each.