Sin 40° + sin 130° + sin 220° + sin 310° = ...
sin 130° = sin 50°;
sin 220° = - sin 40°;
sin 310° = - sin 50°
... = sin 40° + sin 50° - sin 40° - sin 50° = 0
Answer: 0.
Adding another card with value $25 would decrease the standard deviation
because it is closer to the mean the the current standard deviation.
Answer:
Only:
B. x=7
D. x=0
Step-by-step explanation:
Substitute the answers in the formula and only 7 and 0 will work.
Answer: add
Step-by-step explanation:
It’s going to be -2 because the y intercept is when x=0.