Step-by-step explanation:
d=20
r=10
π=3
This tells you that the unknown number is multiplied by 3.
2 answers:
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Answer:
C : does not have statistical significance
Step-by-step explanation:
Because there is a 15% chance of getting that many girls by chance, the method - does not have statistical significance.
By this method, the percentage of girls = or 51.15%
This type of method does not have practical significance.
Answer:
z = 55.15432893
x = 59.61543424
y = 22.5166605
Step-by-step explanation:
To find length "z" you will have to use SOHCAHTOA.
Labelling the triangle will show us that the side marked "z" is the hyp and the side marked 39 is the opp.
sin 45 =
z sin 45 = 39
z =
z = 55.15432893
Using Pythagoras' theorem, you can find that the adj = 39
In the other triangles POV, the adj is actually the opp.
Therefore, use tangent to find y.
tan 60 =
y tan 60 = 39
y =
y = 22.5166605
Use Pythagoras's Theorem to find x.