Answer:
-8-60p
Step-by-step explanation:
Answer:
Shade above 2x + y = 4.
Shade below 2x + y = 4.
Shade above 2y = 6 – 2x.
Shade below 2y = 6 – 2x.
Make the boundary line 2x + y = 4 dashed.
Step-by-step explanation:
A linear equation would be the best fit, but the last point (-1,-7) kinda messes it up. If the -7 would have been a -6 the line y=-2x-8 would fit perfectly.
Answer:
(a) 0.85
(b) 0.7225
Step-by-step explanation:
(a) The point estimate for the proportion of all such components that are not defective is given by the number of non-defective units in the sample divided by the sample size:
![p=\frac{80-12}{80}\\p=0.85](https://tex.z-dn.net/?f=p%3D%5Cfrac%7B80-12%7D%7B80%7D%5C%5Cp%3D0.85)
The proportion is 0.85.
(b) Assuming that the sample is large enough to accurately provide a point estimate for the whole population, this can be treated as a binomial model with probability of success (non-defective part) p = 0.85. Since both components must be non-defective for the system to work, the probability of two successes in two trials is:
![P(x=2) = 0.85^2\\P(x=2) = 0.7225](https://tex.z-dn.net/?f=P%28x%3D2%29%20%3D%200.85%5E2%5C%5CP%28x%3D2%29%20%3D%200.7225)
An estimate of 0.7225 for the proportion of all such systems that will function properly.
Answer:
(x-4)(x+5)
Step-by-step explanation:
Find 2 numbers knowing sum (1) and product (-20). To find them, factor pairs of (-20) --> (-2,10) (-4,5). This sum is 1=b. Then, these 2 numbers are: - 4 and 5. Y=(x-4) (x+5). Hope this helped :)