Answer:
see below
Step-by-step explanation:
see attached for my workings, step-by-step and the trig identities I used.
For this problem, we can use systems of equations. I will use the variables <em>x </em> (for ice-cream) and <em>y</em> (for soda). We get the system:
2.25x+0.75y=30.00
x+y=18
Putting the second equation in terms of y, we get that y=-x+18. We can substitute this into our first equation.
2.25x+0.75y=30.00
becomes
2.25x+0.75(-x+18)=30
Solving for x, we get that x=11. This satisfies answer B.
However, if you want to check to see if this is correct, you could find y by plugging in your value of x into the first equation, then check to see if your found values satisfy BOTH equations.
2.25(11)+0.75y=30
24.75+0.75y=30
0.75y=5.25
y=7
Then we plug this into both equations to see if they are true.
2.25(11)+0.75(7)=30
24.75+5.25=30
30=30 (This is true)
x+y=18
11+7=18
18=18 (This is true).
Both equations are true, so the value for x and y are correct. We see that only answer B is supported through analyzing your work.
:)
Answer:
For each n get its posting then AND them
Step-by-step explanation:
1. Lets presume we have multiple n terms
2. We get the posting from each n term
3. We use the function AND and apply it to each n term
4. We start with the tiniest set and we continue from there
5. We have a pair of n terms
6. We get the posting from 1st n
7. We get the posting from 2nd n
8. We apply n1 AND n2
Answer:
29
Step-by-step explanation:
For this Q:
mean=31
st.dev.=0.8
x=32
Calculate z-score:
z=(x-m)/s = (32-31)/0.8=1.25
This z-score value corresponding to the probability of 0.8944
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