Answer:
0.0053
Step-by-step explanation:
Look at the 2 significant figures which are non-zero digits.
The two figures are 5 and 4, the digit after 4 is 3, which is lower than 5, so we don’t have to add +1 to the 4.
Answer:
600
Step-by-step explanation:
Answer:
cos 225° = 
sin 225° =
tan 225° = 1
Step-by-step explanation:
I cannot sketch a diagram, but a 225° angle is a 3rd quadrant angle and the reference angle is 45° (225 - 180 = 45)
cos and sin are negative in the 3rd quadrant and the tan is positive
cos 225° = - cos 45° =
sin 225° = -sin 45° =
tan 225° = tan 45° = 1
Answer:
that's an even function
Step-by-step explanation:
because the greatest degree is 4 and that is even number.
Answer:
(D) Although cause-and-effect cannot be established, there is an association between stress and the presence of heart arrhythmias for the population of all women aged 30 to 50.
Step-by-step explanation:
