Answer:
8.6
Step-by-step explanation:
Sine is opposite/hypotenuse so you have
Sin20° = a/25.
To get a you have to multiply 25 to both sides of the equation to get
25 Sin20° = a
Find Sin20° on a calculator and you'll get approximately 0.3420
Then you multiply Sin20° by 25 and you'll get approximately 8.5505 which rounds to 8.6 which is a.
Answer:
PR = 6√2, PN = 6, PQ = 12√2
Step-by-step explanation:
Find the unknowns through Sin, Cos, Tan formulae.
The explanation is attached in the pictures. !!
since all angles are the same, then the sides must also be the same measure
therefore
6x-3=3x+6=5x
we can solve for x by taking any 2 equations
6x-3=5x
minus 5x both sides
x-3=0
x=3
The probability density function (pdf) is;
f(x)= for a ≤ x ≤ b.
while the mean is given as
And the standard deviation given as