Tutors Answer Your Questions about Finance (FREE)
Question 1025291: If f(x) and g(x) are continuous on [a, b], which one of the following statements is false?
the integral from a to a of f of x, dx equals 0
the integral from a to b of the sum of f of x and g of x, dx equals the integral from a to b of f of x, dx plus the integral from a to b of g of x dx
the integral from a to b of f of x, dx equals 1 minus the integral from b to a of f of x, dx
the integral from a to b of 5 minus f of x, dx equals the integral from a to b of 5, dx minus the integral from a to b of f of x, dx
Click here to see answer by robertb(5830)   |
Question 1025361: Which of the following integrals cannot be evaluated using a simple substitution?
the integral of 1 divided by the quantity x squared plus 1, dx
the integral of 1 divided by the quantity x squared plus 1, dx
the integral of x divided by the quantity x squared plus 1, dx
the integral of x cubed divided by the quantity x to the 4th power plus 1, dx
Click here to see answer by robertb(5830) |
Question 1025369: Evaluate the integral the integral of the product of the quantity x times the square root of 1 minus x, dx.
negative x squared over 3 times the quantity 1 minus x raised to the three-halves power, plus C
x squared over 3 times the quantity 1 minus x raised to the three-halves power, plus C
the quotient of the quantity 2 minus 3 times x and 2 times the square root of the quantity 1 minus x, plus C
negative 2 divided by 15 times the quantities 2 plus 3 times x and the quantity 1 minus x raised to the three halves power, plus C
Click here to see answer by Fombitz(32388)  |
Question 1025500: Whats an example of a system of three equations in three variables that has
(3, 5, 2) as a solution. Show that the ordered triple satisfies all three equations.
So far I've tried:
1.) a(x-3)+b(y-5)+c(z-2)=0
2.)
3.)
Click here to see answer by Fombitz(32388) |
Question 1025525: A theater group made appearances in two cities. The hotel charge before tax in the second city was $1500 lower than in the first. The tax in the first city was 5.5% , and the tax in the second city was 7.5% . The total hotel tax paid for the two cities was $570 . How much was the hotel charge in each city before tax?
Click here to see answer by josmiceli(19441)  |
Question 1025540: A chef is using a mixture of two brands of Italian dressing. The first brand contains 9% vinegar, and the second brand contains 14% vinegar. The chef wants to make 280 milliliters of a dressing that is 11% vinegar. How much of each brand should she use?
Click here to see answer by mananth(16946)  |
Question 1025641: Which system of inequalities are represented in this graph linked below?
http://postimg.org/image/7y1r6c1l7/ - graph
A.) x + y > 3; -x + y > - 4
B.) -x + y ≥ -4; x + y ≤ 3
C.) -2x + y > -4; 2x + y < 3
D.) -x + y > -4; x + y < 3
Thanks in advance, I cant find the solution.
Click here to see answer by josgarithmetic(39617) |
Question 1025641: Which system of inequalities are represented in this graph linked below?
http://postimg.org/image/7y1r6c1l7/ - graph
A.) x + y > 3; -x + y > - 4
B.) -x + y ≥ -4; x + y ≤ 3
C.) -2x + y > -4; 2x + y < 3
D.) -x + y > -4; x + y < 3
Thanks in advance, I cant find the solution.
Click here to see answer by Theo(13342)  |
Question 1025535: A petroleum company has two different sources of crude oil. The first source provides crude oil that is 25% hydrocarbons, and the second one provides crude oil that is 75% hydrocarbons. In order to obtain 80 gallons of crude oil that is 65% hydrocarbons, how many gallons of crude oil must be used from each of the two sources?
Click here to see answer by josmiceli(19441) |
Question 1025654: A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 70% salt and Solution B is 85% salt. She wants to obtain 120 ounces of a mixture that is 80% salt. How many ounces of each solution should she use?
Click here to see answer by stanbon(75887) |
Question 1025656: The Royal Fruit Company produces two types of fruit drinks. The first type is 25% pure fruit juice, and the second type is 50% pure fruit juice. The company is attempting to produce a fruit drink that contains 35% pure fruit juice. How many pints of each of the two existing types of drink must be used to make 80 pints of a mixture that is 35% pure fruit juice?
Click here to see answer by stanbon(75887) |
Question 1025674: Tandy sold lemonade on Saturday and Sunday afternoon. On saturday, she sold a cup for $0.75. On sunday, she lowered her price to $0.50 per cup. which expression represents how much money Tandy made for the two-day period if she sold the same cups each day?
a. c(.75)+c(.50)+c(.75+.50)
b. c(.75)(.50)
c. 2c(.75+.50)
Click here to see answer by ikleyn(52781)  |
Question 1025671: A petroleum company has two different sources of crude oil. The first source provides crude oil that is 50% hydrocarbons, and the second one provides crude oil that is 75% hydrocarbons. In order to obtain 60 gallons of crude oil that is 70% hydrocarbons, how many gallons of crude oil must be used from each of the two sources?
first source how many gallons?
second source how many gallons?
Click here to see answer by stanbon(75887) |
Question 1025690: A chef is using a mixture of two brands of Italian dressing. The first brand contains 5% vinegar, and the second brand contains 15% vinegar. The chef wants to make 370 milliliters of a dressing that is 7% vinegar. How much of each brand should she use?
first brand = X milimeters
second brand = X milimeters
Click here to see answer by mananth(16946) |
Question 1025673: Tickets to the Smallvielle championship basketball game were $12 each. The first 25 tickets were discounted by $2 each. what expression shows how much money the Smallvielle little league made for total sales of x tickets?
a. x(10)+12(25)
b. x(10)+12(x-25)
c. (10+25)+12(x-25)
d. 10(25)+12(x-25)
Click here to see answer by mananth(16946) |
Question 1025706: A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 45% salt and Solution B is 70% salt. She wants to obtain 70 ounces of a mixture that is 55% salt. How many ounces of each solution should she use?
solution A = x ounces
Solution B = x ounces
thank you to whoever answers :)
Click here to see answer by josgarithmetic(39617) |
Question 1025706: A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 45% salt and Solution B is 70% salt. She wants to obtain 70 ounces of a mixture that is 55% salt. How many ounces of each solution should she use?
solution A = x ounces
Solution B = x ounces
thank you to whoever answers :)
Click here to see answer by lwsshak3(11628) |
Question 1025706: A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 45% salt and Solution B is 70% salt. She wants to obtain 70 ounces of a mixture that is 55% salt. How many ounces of each solution should she use?
solution A = x ounces
Solution B = x ounces
thank you to whoever answers :)
Click here to see answer by MathTherapy(10552)  |
Question 1025753: The Royal Fruit Company produces two types of fruit drinks. The first type is 65% pure fruit juice, and the second type is 90% pure fruit juice. The company is attempting to produce a fruit drink that contains 80% pure fruit juice. How many pints of each of the two existing types of drink must be used to make 120 pints of a mixture that is 80% pure fruit juice?
Click here to see answer by stanbon(75887) |
Question 1025763: A petroleum company has two different sources of crude oil. The first source provides crude oil that is 65% hydrocarbons, and the second one provides crude oil that is 90% hydrocarbons. In order to obtain 170 gallons of crude oil that is 75% hydrocarbons, how many gallons of crude oil must be used from each of the two sources?
Click here to see answer by ikleyn(52781) |
Question 1025820: Please help to solve this, thanks.
Thomas purchased a house for $210,000. After 4 years, he sold the house and made a net profit of $39,000. Find the effective annual rate of return on his investment over the 4 year period. Please round the answer to the nearest tenth of percent.
Click here to see answer by Theo(13342) |
Question 1025819: Please help, I am stucked at this question:
Find the interest rate needed for an investment of $3,000 to grow to an amount of $4,000 in 3 years if interest is compounded continuously. Please round the answer to the nearest hundredth of percent.
I am using the compounded interest formula:
A = P ( 1+〖r/m)〗^mt
where A = $4000 and P = $3000 and t = 3 (years) and m = 1 (annually) and r = interest (percentage)
I am stuck at this step: $4000 = $3000 〖(1+r)〗^3
Suppose if this is correct up to this point, can anyone be kind enough to show me the workings in solving this? Much thanks.
Click here to see answer by Theo(13342) |
Question 1025822: Please help with this question, many thanks.
Lily invested $50,000 in a boutique 4 years ago. Her investment is worth $80,000 today. What is the effective rate (annual effective yield) of her investment? Round your answer to two decimal places.
( Use: R_eff=(〖A/P)〗^(1/t)- 1 , where an initial investment of $P grows to an accumulated amount of $A in t years. )
Click here to see answer by rothauserc(4718)  |
Question 1025841: I am stuck at this question, please help me.
How long will it take an investment of $5,000 to double if the investment earns interest at the rate of 8% compounded continuously? Round your answer to two decimal places.
Click here to see answer by stanbon(75887) |
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