Answer:
15
Step-by-step explanation:
124° + 9x + 11 = 180 ➡ 9x = 135° ➡ x = 15
P(z < 3)
From the normal distribution table,
P(z < 3) = 0.9987
Answer:
(C) 30πcm
Step-by-step explanation:
In order to find circumference you use the formula C (circumference)=2(pi)(r) in which r is the radius. In this case, two and 15 are thirty so to find the circumference all you have is the equation 30 times pi centimeters is equal to the Circumference.