Parallel lines have to have the same slope. The must stay the same distance apart at all times to be parallel and the only way to do that is to change in exactly the same manner as they move so slope is the change in x over the change in y. it must be the same
Answer:
3 37/90
Step-by-step explanation:
You didn't ask for the work. Hope this helps.
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Answer:
x¹²,8x⁴,6x,2x,1
Step-by-step explanation:
x²×x⁶×x⁴=x¹²
x^4(8) =8x⁴
x^1(6) =6x
x^1(2) =2x
x^0 = 1
Answer:
x =76.45 degrees
Step-by-step explanation:
72 + 252 – 2(7)(25)cos _x__=242
combine like terms
324-350cosx = 242
subtract 324 from each side
-350x = -82
divide by -350
cos x = -82/-350
cos x = 82/350
take the arccos of each side
arccos (cos x) = arccos (82/350)
x =76.45 degrees
Answer:
Step-by-step explanation:
a)
Confidence interval in less than symbol expressed as
Where 
is sample mean and 
is margin of error.
b)
The given t interval is 
That is 
and 
Solve these two equation by adding together.
Solve this value of \bar{x} in equation and solve for
Best point estimate of 
Best point estimate of margin of error = 0.193
c)
Since sample size = 100 which is sufficiently large (Greater than 30) , it is no need to confirm that
sample data appear to be form a population with normal distribution.
