Answer: To find it multiply 3 cm times 3 to get 9 in
Step-by-step explanation: If 1 cm is equal to 3 inches then to get the product multiply the number by 3 then convert to inches.
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Answer:
x = 16.67
Step-by-step explanation:
4x - 6 + 8x - 6 = 180
12x - 14 = 180
+ 14 + 14
12x = 194
/ 12 / 12
x = 16.67
Answer: 12 = 7 + 5
Step-by-step explanation:
12 = 7 + 5
Answer:
70910 (c)
Step-by-step explanation:
You move the decimal point to the right each time.
Answer:
0.38
−0.0814
Step-by-step explanation:
X ___ 0 __ 0.15 __ 0.30 ___ 0.45 ___ 1
P(x)_0.20 _0.20___0.20 ___0.25 __0.20
The expected mean ; E(X) :
Σx * p(x)
(0*0.2) + (0.15*0.2) + (0.3*0.2) + (0.45*0.2) + (1*0.2) = 0.38
The variance ; Var(X) :
Σx²*p(x) - E(x)²
(0^2 * 0.2) + (0.15^2 * 0.2) + (0.3^2 * 0.2) + (0.45^2 * 0.2) + (1*0.2) - 0.38^2
0.063 - 0.1444
−0.0814
