iGreenHacked
  • iGreenHacked
How do i find z
Geometry
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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iGreenHacked
  • iGreenHacked
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Ryuga
  • Ryuga
@mathmale help me i will become a qualified helper so pls help me
ParthKohli
  • ParthKohli
hey lol this is a 37-53-90 triangle

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mathmale
  • mathmale
the tangent of z is 10/8. Use the inverse tangent function \[\tan ^{-1}x \]
mathmale
  • mathmale
to find the angle z.
Kitten_is_back
  • Kitten_is_back
You can use the Z-table to find a full set of "less-than" probabilities for a wide range of z-values. To use the Z-table to find probabilities for a statistical sample with a standard normal (Z-) distribution, do the following: Go to the row that represents the ones digit and the first digit after the decimal point (the tenths digit) of your z-value. Go to the column that represents the second digit after the decimal point (the hundredths digit) of your z-value. Intersect the row and column from Steps 1 and 2. This result represents p(Z < z), the probability that the random variable Z is less than the value z (also known as the percentage of z-values that are less than the given z value ). For example, suppose you want to find p(Z < 2.13). Using the Z-table below, find the row for 2.1 and the column for 0.03. Intersect that row and column to find the probability: 0.9834. Therefore p(Z < 2.13) = 0.9834.
ParthKohli
  • ParthKohli
it probably pays a lot to know that the 3-4-5 (or any subsequent ratio) triangle has angles 37, 53 and 90.
Kitten_is_back
  • Kitten_is_back
XDXD
mathmale
  • mathmale
Whether or not this is a "3 4 5" triangle, we'll still need to use the inverse tangent function to obtain the measure of angle z.
pogo
  • pogo
hahaha the inverse tangent function is not something like a formula you still gotta learn the specific values
ParthKohli
  • ParthKohli
Actually I'm still wrong because 10 had to be a hypotenuse.
ParthKohli
  • ParthKohli
Just like 5 is a hypotenuse in the 3-4-5 triangle
mathmale
  • mathmale
@Kitten_is_back : Thanks for y our suggestion, but this question is about trigonometry, not statistics.
pogo
  • pogo
you gotta use calculator
mathmale
  • mathmale
Parth: In the illustration, the hypotenuse is not given. The side opposite angle z has length 10 and the side adjacent to angle z has length 8. Can you help @igreenhacked , through explanations, to find the angle z?
ParthKohli
  • ParthKohli
Yes, use a calculator. Also the hypotenuse is given (in a way)
mathmale
  • mathmale
Yes, you're right, but your focus is off. The goal is to find angle z. Could you please help @igreenhacked find it himself / herself?
mathmale
  • mathmale
@igreenhacked: have you learned how to set a calculator to give you an angle in degrees? Have you learned how to find the sines, cosines and tangents of angles on your calculator Have you learned how to find the inverse sines, inverse cosines and inverse tangents? Once I have your answers to these questions, we could move on to solving the problem at hand.

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