Answer:
x= -7
Step-by-step explanation:
Complementary angles are angles who sum to 90 degrees. So, since one angle is 13 degrees, naturally the other must equal 77. Good luck! c:
Answer:
View Image.
Step-by-step explanation:
The solution is where both graph cross each other.
Is the solution, the point (x, y) that they gave you, the same point as where the two graph cross each other?
If yes then the solution is correct.
If no then the solution is wrong.
Answer:
385 golf balls
Step-by-step explanation:
margin of error = (z*)(s) / sqrt n
where z* = 1.96 with 5%/ 2 = 0.025 area in each tail
margin of error = (z*)(s) / sqrt n
1.2 yards = (1.96)(12 yards) / sqrt n
solve for n
n = 384.16
385 golf balls (always round up)
Answer:
Step-by-step explanation:
2x-xy=3
-xy=3-2x
y=3-2x/x