Tutors Answer Your Questions about Finance (FREE)
Question 1124096: Every Monday, James has a math class and a biology class.
The probability that he will have his math homework done is 0.46
and the probability he will have his biology homework done is 0.57.
If the probability he will have his biology homework done but not his math
homework is 0.21,
what is the probability he will have his math homework done given that he does
not have his biology done?
Enter your answer as a whole number or a fraction in lowest terms.
Click here to see answer by Edwin McCravy(20055)   |
Question 1124097: J, K, and L are events in sample space S.
Pr(J)=0.35
Pr(K)=0.18
Pr(L)=0.24
Pr(J∩K)=0.11
Pr(J′∩L′)=0.55
Pr(K′∩L)=0.16
What is Pr(J|K)?
What is Pr(L|J)?
What is Pr(K|L′)?
Enter your answers as whole numbers or fractions in lowest terms.
Click here to see answer by Edwin McCravy(20055) |
Question 1124097: J, K, and L are events in sample space S.
Pr(J)=0.35
Pr(K)=0.18
Pr(L)=0.24
Pr(J∩K)=0.11
Pr(J′∩L′)=0.55
Pr(K′∩L)=0.16
What is Pr(J|K)?
What is Pr(L|J)?
What is Pr(K|L′)?
Enter your answers as whole numbers or fractions in lowest terms.
Click here to see answer by ikleyn(52781)  |
Question 1124192: The function f(x)=3^x is an exponential function and is often referred to as the "tripling function."
a. for any value of x, f(x+1)is how many times as large as f(x).
b. for any value of x, f(x+2) is how many times as large as f(x).
c. If x increases by 4, f(x) becomes how many times as large?
Click here to see answer by Theo(13342)  |
Question 1124190: A 9-inch tall sunflower is planted in a garden and the height of the sunflower increases by 10% per day.
a. What is the 1-day percent change in the height of the sunflower?
b. At any given moment, the height of the sunflower is what percent of its height 1 day prior?
c. What is the 1-day growth factor for the height of the sunflower?
d. Write a function f that determines the height of the sunflower (in inches) in terms of the number of days t since it was planted.
Click here to see answer by josmiceli(19441)  |
Question 1124285: Three consecutive odd integers are such that the square of the third integer is 9 less than the sum of the squares of the first two. One solution is -3 -1 and 1 find 3 other consecutive odd integers that also satisfy the given conditions
Click here to see answer by solver91311(24713)  |
Question 1124389: Suppose a company has fixed costs of $54,400 and variable cost per unit of 4/9 x + 222 dollars, where x is the total number of units produced. Suppose further that the selling price of its product is 1856 −5/9 x dollars per unit.
(a) Find the break-even points. (Enter your answers as a comma-separated list.)
Hint: Form the revenue function R(x) and the cost function C(x) first. Then find the break-even points.
Click here to see answer by solver91311(24713) |
Question 1124485: Factories A and B produce all of the computers sold at Cheapo Discount Stores. Factory A produces 4 times as many computers as factory B. The probability that a computer produced by factory A is defective is 0.3 and the probability that one produced by factory B is defective is 0.2.
If a Cheapo computer is selected at random and it is found to be defective, what is the probability it came from factory A?
If a Cheapo computer is selected at random and it is found not to be defective, what is the probability it came from factory B?
Click here to see answer by ikleyn(52781) |
Question 1124483: An urn contains five red balls, two green balls, and three yellow balls. Three balls will be drawn from the urn, one at a time, at random.
If the balls are drawn without replacement (i.e. when a ball is drawn it is not placed back into the urn before the next draw), what is the probability the first is yellow, the second is green, and the third is red?
If the balls are drawn with replacement (i.e. when a ball is drawn it is placed back into the urn before the next draw), what is the probability the first is yellow, the second is green, and the third is red?
Enter your answers as whole numbers or fractions in lowest terms.
Click here to see answer by math_helper(2461)  |
Question 1124561: Factories A and B produce all of the computers sold at Cheapo Discount Stores. Factory A produces 4 times as many computers as factory B. The probability that a computer produced by factory A is defective is 0.3 and the probability that one produced by factory B is defective is 0.2.
If a Cheapo computer is selected at random and it is found to be defective, what is the probability it came from factory A?
If a Cheapo computer is selected at random and it is found not to be defective, what is the probability it came from factory B?
Enter your answers as whole numbers or fractions in lowest terms.
Click here to see answer by Boreal(15235)  |
Question 1124560: Tom has three coins. Two are fair and one is an unfair coin weighted so that heads is five times as likely as tails. He selects one of the coins at random and flips it.
What is the probability it comes up heads?
If it does come up heads, what is the probability it was a fair coin?
Enter your answers as whole numbers or fractions in lowest terms.
Click here to see answer by Boreal(15235) |
Question 1124414: For each of the following equalities, determine the value(s) of x that makes the equation true. If there is more than one value, enter the values as a comma-separated list.
a. 9 1/2=x
b. x^2=64
c. n^4.5*n^5=n^x
d. m^9.9/m^6=m^x
Click here to see answer by Boreal(15235) |
Question 1124707: A model rocket is launched with an initial velocity of 250 ft per second. The height h, in feet, of the rocket t seconds after the launch is given by
h = −16t2 + 250t.
How many seconds after the launch will the rocket be 400 ft above the ground? Round to the nearest hundredth of a second.
Thank you!!!
Click here to see answer by ikleyn(52781) |
Question 1124738: Xiao Li wishes to accumulate $50,000 by the end of 10 years by making equal annual end-of-year deposits over the next 10 years. If Xiao Li can earn 5 percent on her investments, how much must she deposit at the end of each year?
Click here to see answer by ikleyn(52781) |
Question 1124773: Andres Michael bought a new boat. He took out a loan for $24,500 at 4.5% interest for 2 years. He made a $4500 partial payment at 2 months and another partial payment of $3000 at 6 months. How much is due at maturity?
Click here to see answer by Boreal(15235) |
Question 1124820: If the solutions to a quadratic equation are - 3 and + 4, what is the equation?
Be careful to write the quadratic in standard form: Ax2 + Bx + C = 0.
A, B, and C must be integers - no fractions, no decimals - and A must be positive.
The equation is
Click here to see answer by josgarithmetic(39617) |
Question 1124826: Sam is having a problem with rabbits getting into his vegetable garden, so he decides to fence it in. The length of the garden is 9 feet more than 6 times the width. He needs 74 feet of fencing to do the job.
What is the length of the garden?
Click here to see answer by josgarithmetic(39617) |
Question 1124848: A college student earned $7200 during summer vacation working as a waiter in a restaurant on the boardwalk at the beach. The student invested part of the money at 10% and the rest at 9%. If the student received a total of $680 in interest at the end of the year, how much was invested at 10%
The amount invested at 10% was
Click here to see answer by ikleyn(52781) |
Question 1124830: The profit, P, in dollars for manufacturing n units of a certain product is given by the formula P = 3n2 - 30n - 150. (Assume that n is a positive integer.) How many units are produced when the profit is $450.00?
Click here to see answer by ikleyn(52781) |
Question 1124876: A fair coin is tossed nine times, with the result (H or T) of each flip noted.
How many outcomes does the experiment have?
How many outcomes are there where heads comes up three times?
What is the probability of the outcome HHHTTTTTT?
What is the probability that heads comes up three times?
Click here to see answer by rothauserc(4718)  |
Question 1124881: Every day, there is a 90% chance that Kevin will spill coffee on himself while driving to work.
Looking at the next five days, what is the probability that Kevin will spill coffee on himself on just two of those days?
Looking at the next five days, what is the probability that Kevin will spill coffee on himself on at least two of those days?
Enter your answers as whole numbers or decimals.
Click here to see answer by solver91311(24713) |
Question 1124878: Every day, Quinn either gains two pounds (with probability 12) or loses one pound (with probability 12). Each day these probabilities are independent of whether she lost or gained weight any other day.
At the end of four days, what's the probability that Quinn will weigh one pound less than she did before?
At the end of four days, what's the probability that Quinn will weigh one pound more than she did before?
Enter your answers as whole numbers or fractions in lowest terms.
Click here to see answer by ikleyn(52781) |
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