Answer:
He sold 21 CDs
Step-by-step explanation:
200w + 2c = s
W= weeks C= cd sold S = total salary
Answer:
5X²+16X+8=0
Step-by-step explanation:
5(X+2) (X+2)=4(X+3)
5(X²+2X+2X+4)=4(X+3)
5(X²+4X+4)=4(X+3)
5X²+20X+20=4X+12
5X²+20X-4X+20-12=0
5X²+16X+8=0
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
The range is: {3,-5}
Step-by-step explanation:
Given
We will get the range by putting the values given in domain in the function
Putting x=-4
Putting x=-2
Putting x=0
Putting x=2
The range is: {3,-5}
Keywords: Functions, Range
Learn more about range at:
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