Answer:
2x+1^2(2x-1)
Step-by-step explanation:
Brainliest if this helps
Answer:
27 unit cubes.
Step-by-step explanation:
Nine unit cubes multiplied by three layers.
9x3=27
Answer:
Option c.
Step-by-step explanation:
Confidence interval refers to an interval such that there is a probability that the value of a parameter lies within that interval.
Therefore,
the confidence interval of the mean means that there is a probability that the value of a parameter lies within that confidence interval.
So, option c. is correct
Answer:

Step-by-step explanation:
Using foil method, Multiply the first term

Next, Multiply the Outer term in each parenthesis. (2x^2 and 7


Then, Multiply the Inner Terms (-3x,-4,7) in each parenthesis


Then multiply the last term (-4 and 7).

Combine it you have

which simplify to

Answer:
The probability that a manufactured ball will be rejected is 0.99, to two decimal places.
Step-by-step explanation:
The mean weight is 16 Ibs. The standard deviation of the weights of all manufactured balls from the mean weight is 25. The distribution is normal. With a standard deviation this large, it is already obvious that there is a high probability of producing or having rejected balls. The weights of the balls produced here ranges from (16-25)Ibs to (16+25)Ibs.
That's -9Ibs to 41Ibs.
The minimum permissible weight is 15.68. Any ball with a lesser weight gets kicked out!
So the distance or difference between this figure and the mean is (16-15.68) = 0.32
So the probability of obtaining less than 15.68Ibs or the probability of having balls between the lower boundary of -9Ibs and 15.68 is:
25-0.32 = 24.68
24.68 ÷ 25 = 0.9872 ~ 0.99 to two decimal places.