Answer:
The rate of Yvone's hair growth is 3.1 cm per month.
Step-by-step explanation:
WIth the data from Yvonne's hair we can create a sequence that goes as follows:
A = {47, 50.1, 53.2, 56.3, 59.4,...}
This is an arithmetic sequence, the numbers are related to each other by a common difference, in other words to find the next number we just need to add a constant "r". To find this constant we can subtract any adjacent numbers on this sequence, this is shown below:
r = 50.1 - 47 = 3.1
r = 53.2 - 50.1 = 3.1
r = 56.3 - 53.2 = 3.1
and so on.
The rate of Yvone's hair growth is 3.1 cm per month.
Answer:
(a) The mean and standard deviation of the pallet weight are 3000 lb and 10.95 lb respectively.
(b) The probability that the pallet weight (W) will exceed 3015 lb is 0.085.
Step-by-step explanation:
Let the random variable <em>X</em> denote the weight of the parts.
The random variable <em>X</em> is normally distributed with parameters, <em>μ</em> = 1 lb and <em>σ</em> = 0.20 lb.
It is provided that a shipping pallet holds 10 boxes and each box holds 300 parts of different types.
That is, there are a total of 300 × 10 = 3000 parts in a pallet.
(a)
Compute the mean and standard deviation of the pallet weight as follows:
Mean of the pallet weight = n × E (X)
Standard deviation of the pallet weight =
Thus, the mean and standard deviation of the pallet weight are 3000 lb and 10.95 lb respectively.
(b)
Compute the probability that the pallet weight (W) will exceed 3015 lb as follows:
*Use a <em>z</em>-table.
Thus, the probability that the pallet weight (W) will exceed 3015 lb is 0.085.
A number tripled mean you have to multiply it by 3
so the answer is
3 times a number q or...
3q
These questions are all of the same type: division. They ask to find how many of a number can fit in another number.
As for question 5, there are 42 pounds of dog food, and pound of dog food is used for each feeding. To find the number of times Mr. Lash can feed his animals, divide 42 by . The answer is 48.
Solving the rest of the questions by this method, here are the answers. If you wish you can do them yourself to verify your understanding.
6) 12
7) 4
8) 8
9) 2
Note: in question 9, the question is in reverse order compared to the other questions.
Answer:
y=-10
Step-by-step explanation:
y+5=-5
y=-10