Answer:
34
Step-by-step explanation:
so 56 -89 is 23
e3 - y7 divided by the quotient is 7
Answer: total cost earn=$1360
adult sold =45
student sold =80
adult cost twice as student cost so we can say adult sold 45+45=90
so total sold=90+80=170
to get the cost of 1 meal we divide 1360 by 170
1360/170=8
one student meal cost=8$
one adult meal cost=8*2=16
total students meal cost=8*80=640$
total adult meal cost=16*45=720
640+720=1360
<h3>
Answer: B. (3,-2)</h3>
There are two ways to confirm this is the answer. The first is to note that (3,-2) is on the boundary, so it is part of the solution set. This only works if the boundary line is a solid line (as opposed to a dashed or dotted line).
The second way is to plug (x,y) = (3,-2) into the given inequality to find that
which is a true statement. So this confirms that (3,-2) is in the solution set of the inequality.
Answer:
- 1800 ; 4284.8579 ;
Step-by-step explanation:
Given the table :
Outcome _____ probability
-12000 ________ 0.15
__ 0 __________ 0.85
Expected loss, m: Σx*p(x)
(-12000 * 0.15) + (0 * 0.85)
-1800 + 0 = - 1800
Standard deviation = sqrt(Var(x))
Var(x) = Σx²*p(x) - m²
(-12000^2 * 0.15) + (0^2 * 0.85)] - 1800^2
21,600,000 - 3240000
= 18360000
Standard deviation = sqrt(18360000)
Standard deviation = 4284.8579
Yeah the answer is number 5