Answer:
7y^2 - y^2z - 10yz-5
C. 7 y squared minus y squared z minus 10 y z minus 5
Step-by-step explanation:
A. y squared minus y squared z minus 10 y z minus 5
B. y squared minus y squared z minus 5 y z minus 5
C. 7 y squared minus y squared z minus 10 y z minus 5
D. 7 y squared minus y squared z minus 2 y z minus 5
Given:
3y^2 - 6yz - 7 + 4y^2 - 4yz + 2 - y^2z
Collect like terms in the expression
3y^2 + 4y^2 - 6yz - 4yz - y^2z - 7 + 2
Simplify
7y^2 - 10yz - y^2z - 5
Rewritten as
7y^2 - y^2z - 10yz-5
Option C. 7 y squared minus y squared z minus 10 y z minus 5
Is the answer
Find how many cars she can wash in one day:
95 cars / 5 days = 19 cars per day.
Now multiply by 11 days:
19 cars per day x 11 days = 209 total cars.
Answer:
2 more cans
Step-by-step explanation:
2 1/3 x 3 = 7 cans (this the amount of cans of dog food she has)
3 x 3 = 9
the 3 represents how she wants to feed 3 cans of dog food each day for 3 days; the other 3 represents 3 days
9 - 7 = 2
Answer:
3
Step-by-step explanation:
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Answer:
We are given the below probability distribution table:
x P(x)
100 0.180
200 0.051
300 0.227
400 0.113
500 0.090
600 0.099
700 0.165
800 0.075
Now to find the mean, we have to use the below formula:
![Mean, \mu=\sum xP(x)](https://tex.z-dn.net/?f=Mean%2C%20%5Cmu%3D%5Csum%20xP%28x%29)
![=(100 \times 0.180)+(200 \times 0.051)+(300 \times 0.227)+(400 \times 0.113)+(500 \times 0.090)+(600 \times 0.099)+(700 \times 0.165)+(800 \times 0.075)](https://tex.z-dn.net/?f=%3D%28100%20%5Ctimes%200.180%29%2B%28200%20%5Ctimes%200.051%29%2B%28300%20%5Ctimes%200.227%29%2B%28400%20%5Ctimes%200.113%29%2B%28500%20%5Ctimes%200.090%29%2B%28600%20%5Ctimes%200.099%29%2B%28700%20%5Ctimes%200.165%29%2B%28800%20%5Ctimes%200.075%29)
![=18+10.2+68.1+45.2+45+59.4+115.5+60](https://tex.z-dn.net/?f=%3D18%2B10.2%2B68.1%2B45.2%2B45%2B59.4%2B115.5%2B60)
![=421.4](https://tex.z-dn.net/?f=%3D421.4)
Therefore, the mean is