Answer:
0.0478
Step-by-step explanation:
We solve using z score formula
z = (x-μ)/σ, where
x is the raw score = 135 mm
μ is the population mean = 130 mm
σ is the population standard deviation.
We are given variance = 9
Standard deviation = √variance = √9 = 3
Hence
z = 135 - 130/3
z = 1.66667
Probability value from Z-Table:
P(x<135) = 0.95221
P(x>135) = 1 - P(x<135) = 0.04779
Approximately to 4decimal places = 0.0478
Answer:
5x - 1
Step-by-step explanation:
(f + g)(x) = f(x) + g(x), thus
f(x) + g(x)
= 3x - 2 + 2x + 1 ← collect like terms
= 5x - 1
Answer:
130
Step-by-step explanation:
Take calculator and do 1 divided by 3 plus 4 which will give you 4.333...
then multiply that answer by 30.
Answer:

Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable