Answer:
12
Step-by-step explanation:
c = sqrt(a^2+b^2)
Imput numbers and solve for b!
Answer: t=10
Step-by-step explanation:
FOIL 8(2t-6)= 16t-48
Combine like terms 3t+16t-48=2+14t becomes 19t-48=2+14t
Put all t's on same side 19t-14t=2+48
5t=50 Divide by 5 on each side to have t by self
Answer:
118.2°
Step-by-step explanation:
Supplementary angles are angles that sum up to 180°. 180 - 61.8 = 118.2°, so that's you answer.
Answer:
(a)
and 
(b) The sample variance is
and the sample standard deviation is 
Step-by-step explanation:
(a)
The sum of these 17 sample observations is

and the sum of their squares is

(b)
The sample variance, denoted by
, is given by

where 
Applying the above formula we get that


The sample standard deviation, denoted by <em>s</em>, is the (positive) square root of the variance:

Applying the above formula we get that

36/40 would be close to 1