Line DQ is equal to 7. Since point Q is the centeriod, this means that line DQ will equal the same as line QD. Thus, line QD is 7 making like DQ 7 as well. Hope that helped :))
30 + 70 + D = 180
100 + D = 180
D = 80°
Answer:
B. -255
Step-by-step explanation:
This picture is from the user of: DBlaze.
Solution:
Give the following below

To find the cosine function, we will apply the general formula for cosine function below

To find the value of b


Substitute the values of the variables into the general formula for cosine function

Applying a graphing tool,
The graph of one cycle of the function is shown below
Answer:
4. supplementary
5. complementary
Step-by-step explanation:
4 is supplementary because the sum of the two angles is 180°.
5 is complementary because the sum of the two angles is 90°.