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Find the limit of f(x) as x approaches 1 from the right.
f(x) = 2 if x<1
x+3 if 1 less than or equal to x less than or equal to 3
6 if x>3
Thank you bobbym you are a lifesaver!
If you can answer any of these problems please help....
1. Give the domain of the function.
f(x) = square root of 2-x
2. Compute and simplify the difference quotient [f(x + h) - f(x)]/h.
f(x) = 1x2 + 6x - 14
3. Find f'(x) when x has the given value.
f(x) = -3/x; x = -5
4. Find f'(x) when x has the given value.
f(x) = square root of x; x = 25
5. Find the equation of the tangent line to the curve when x has the given value.
f(x) = x2 - 4 ; x = 3
thanks bobby!
6. A dietician obtains the amounts of sugar ( in centigrams) from 100 centigrams( or 1 gram) in each of 10 different cereals, including Cherios, Corn Flakes, Fruit Loops, ands 7 others. Those values are listed below. Is the mean of those values likely to be a good estimate of the mean amount of the sugar in each gram of cereal consumed by the population of all Americans who eat cereal? Why or Why not?
3 24 30 47 43 7 47 13 44 39
Find the mean
median
mode
midrange
The geometric mean is often used in business and ecnonmics for finding average rates of change, average rates of growth, or average ratios. Given n values(all of which are positive), the geometric mean is the nth root of their product. The average growth factor for money compounded at annual interest rates of 10%, 8%, 9%, 12%, and 7% can be found by computing the geometric mean of 1.10, 1.08, 1.12, and 1.07. Find the average growth factor.
pLEASE HELP IF YOU CAN...
1. Solve the problem.
The life span of a certain type of car timing belt, calculated in miles, is normally distributed, with a mean of 60,000 miles and a standard deviation of 7500 miles. If the maker of the timing belt wants less than 4% of the belts to fail while under warranty, for how many miles should the timing belts be guaranteed?
2.At one high school, students can run the 100-yard dash in an average of 15.2 seconds with a standard deviation of .9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are:
Between 17 and 17.9 seconds
3. Assume the distribution is normal. Use the area of the normal curve to answer the question. Round to the nearest whole percent.
A machine produces pencils with an average diameter of .30 inches and a standard deviation of .01 inches. What is the probability of a pencil with a diameter less than .285 inches?
thanks guys!
1.A bag contains 7 apples and 5 oranges. If you select 6 pieces of fruit without looking, how many ways can you get 6 apples?
2.How many different three-digit numbers can be written using digits from the set {5, 6, 7, 8, 9} without any repeating digits?
3.A child rolls a 6-sided die 6 times. What is the probability of the child rolling exactly two fours?
thanks bobby m.
the second problem i dont know if i set it up right but its 8 over 1 in parenthesis
Solve the problem.
How many different three-number "combinations" are possible on a combination lock having 23 numbers on its dial? Assume that no numbers repeat. (Combination locks are really permutation locks.)
Evaluate the combination
(8)
(1)
I guess I would like to get a simpler explanation of z -score. I understand if you broke it down a simple as you could.
In the the second problem whats a real life example of when you would use this? I dont plan on making buttermilk soon but maybe some other example would make the concept clearer
I have no idea how to solve this
what is z-score?
A quart of Parker's milk contains a mean of 39 grams of butterfat, with a standard deviation of 2 grams. If the butterfat is normally distributed, find the probability that a quart of this brand of milk chosen at random will contain
a) between 39 and 43 grams of butterfat
b) more than 40 grams of butterfat
thanks again bobbym
bobbym how do i get the second one if i dont know p(m')?
i was working on the first one with you.
Okay thanks that help me solve the first one i think its .222 but for the second one i cant find p(n)
I know but the ' mark are tripping me up
I can solve these problems for the life of me. Someone please help.
Solve the problem using Bayes' Theorem. Round the answer to the nearest hundredth, if necessary.
For two events M and N, P(M) = .2, P(NIM) = .8, and P(NIM') = .7. Find P(MIN).
Solve the problem using Bayes' Theorem. Round the answer to the nearest hundredth, if necessary.
For two events M and N, P(M) = .6, P(NIM) = .2, and P(NIM') = .4. Find P(MIN).
took an online exam today and I could have gotten a B if only I knew how to answer the problems below. If there is anyone who knows how to answer them I would appreciate a little help and clarification.
Probability
1.Give an example illustrating the difference between mutually exclusive events and independent events, and explain.
2.Create two problems with the solutions to one probability experiment involving mutually exclusive events and one involving independent events.
Thanks bobbym. If anyone knows the others please feel free to post.
I took an online exam today and I could have gotten a B if only I knew how to answer the problems below. If there is anyone who knows how to answer them I would appreciate a little help and clarification.
Linear programming
1.A firm manufactures bumper bolts and fender bolts for antique cars. One machine can produce 130 fender bolts per hour, and another machine can produce 120 bumper bots per hour. The combined number of fender bolts and bumper bolt the packaging department can handle is 230 per hour.
** Write the inequalities that describe the constraints on the number of each type of bolt produced. Begin by identifying what x and y represent.
** How many corners does the feasible region have and what are they?
2.When using the simplex method to solve a linear programming problem how do you no that no maximum solution exists?
Probability
1.Give an example illustrating the difference between mutually exclusive events and independent events, and explain.
2.Create two problems with the solutions to one probability experiment involving mutually exclusive events and one involving independent events.
Thanks guys. This really helped me out. I appreciate it.
Can some please help me solve these two problems step by step?
Part I:
4^x-5 = 16^x
Part II:
log 3x = log 18