Two numbers that multiply to -225 and add to 16 and 25 and -9.
By the equations according to the <em>cylindrical</em> system of coordinates, the equation for a helix are x = 8 · cos (2π · t /T), y = 8 · sin (2π · t /T) and z = 6 · (t/T).
<h3>How to derive the equations of a helix in cylindrical form</h3>
According to the <em>cylindrical</em> system of coordinates, helix can be described by the following equations:
Radius
x = r · cos (2π · t /T) (1)
y = r · sin (2π · t /T) (2)
Height
z = H · (t/T) (3)
Where T is the period of one <em>complete</em> revolution.
If we know that r = 8 and H = 6, then the equations for the helix is:
x = 8 · cos (2π · t /T)
y = 8 · sin (2π · t /T)
z = 6 · (t/T)
How to learn more on helices: brainly.com/question/16911869
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Answer:
C. 83.5%
Step-by-step explanation:
-1 < z < 2.5
0.9938-0.1587 = 0.8351
83.5%
WXY is a acute angle
YXZ is a acute angle as well
Answer:
25%
Step-by-step explanation:
25% of the dolls are made with curly hair.
