Milli = .001
deci = .01
centi = 1
kilo = 1000
Answer:
c) 80⁰
isosceles triangle, two sides and angels are equal.
Step-by-step explanation:
180⁰= full triangle
80⁰+20⁰=100⁰
180-100=80⁰
Answer:
15, 8, 13, 13
Step-by-step explanation:
(1) mean = Σx / n = 135 / 9 = 15
(2) range = highest value - lowest value = 21 - 13 = 8
(3) mode = 13 (most repeated value in data set)
(4) for 9 values in a data set, we have that (9 + 1) / 2 = 5th number
median = 13