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Question 1098489: `f(X)=1/(sqare root(2pi))e^(-x^2 "/"2` what is intergel
Click here to see answer by Alan3354(69443)

Question 1098528: What is the P(1,4,1) on three consecutive rolls of a number cube?
Click here to see answer by Boreal(15235)

Question 1098530: A survey showed that 134 people (26.8% of 100%) were surveyed. How many people were surveyed in total?
Click here to see answer by ikleyn(52781)

Question 1098526: The height and base of a right angled triangle are 15cm and 20cm. If the height is increased by 60%, and the base reduced by 60%, what is the percent change in area?
Click here to see answer by josgarithmetic(39617)

Question 1098605: Find the amount of each payment to be made into a sinking fund which earns 8% compounded quarterly and produces $48,000 at the end of 4.5 years. Payments are made at the end of each period.
Click here to see answer by MathTherapy(10552)

Question 1098627: Given: log2 =a, log7=b. Find: log56
Click here to see answer by Alan3354(69443)

Question 1098629: Pablo invested his savings in two investment funds. The $15,000 that he invested in Fund A returned a 10% profit. The amount that he invested in Fund B returned a 3% profit. How much did he invest in Fund B, if both funds together returned a 8% profit?
Click here to see answer by ikleyn(52781)

Question 1098649: Please help me solve this.
The number 200 is separated into two parts such that if 1/3 of one part is subtracted from 1/4 of the other, the difference is 8. Find the two parts.
Click here to see answer by josgarithmetic(39617)

Question 1098645: Please help me solve this.
A courier who goes at the rate of 6.5 mi./h is followed, after 6.0 h, by another who goes at the rate of 7.5 mi./h. In how many hours will the second overtake the first?
Click here to see answer by josgarithmetic(39617)

Question 1098651: Please help me solve this.
A tank can be filled by a pipe in 3.0 h and emptied by another pipe in 4.0 h. How much time will be required to fill an empty tank if both are running?
Click here to see answer by josgarithmetic(39617)

Question 1098579: A dealer bought a used car for $12600, repaired it and sold it for $18000, thus making a profit of 25%. How much did he spend on repairs?
Click here to see answer by josgarithmetic(39617)

Question 1098670: a loan is repaid with equal payments of 200 dollar at the end of each week for 15 years .if interest is 10.4% p.a. compounded weekly and assuming that there are 52 weeks in a year,
(a) the total amount repaid,
(b) the present value of the loan (correct to 2 decimal places),
(c) the total amount of interest paid (correct to 2 decimal places).

Click here to see answer by Theo(13342)

Question 1098647: The pre- VAT cost of a refrigerator is #32200. What would be the selling price if VAT is added: (a) at 5% ( b) at 8%
Click here to see answer by Fombitz(32388)

Question 1098529: After 4 years, Kate has a total debt of $23760 including 8% interest rate charges per annum. How much money did she borrow?
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Question 1098716: Last year, the expense at Mack's Pizzeria were 5/6 of the total revenue and the remainder was profit. The profit, or the total revenue less expenses, was $107,400. Find the total revenue.
Click here to see answer by Boreal(15235)

Question 1098722: A national census bureau predicts that a certain population will increase from 36.4 million in 2000 to 63.8 million in 2040
Find an exponential function of the form f(t)=y 0 b ^t for these data, in which t=0 corresponds to 2000, and f(t) is in millions.
f(t)=?
Click here to see answer by Fombitz(32388)

Question 1098784: PQR with P=20 degree, Q=85 degree and side r=10mm. Calculate angle R, side p and side q
Click here to see answer by josgarithmetic(39617)

Question 1098767: Some friends tell you that they paid $31,248 down on a new house and are to pay $746 per month for 15 years. If interest is 6.6% compounded monthly, what was the selling price of the house? How much will they pay in 15 years?
Click here to see answer by josmiceli(19441)

Question 1098877: you deposit $9000.00 in a savings account. Determine what interest rate you would have, to earn $540.00 in interest for 1 year

Click here to see answer by richwmiller(17219)

Question 1098919: A jet bomber traveling 500 miles per hour arrived over its target at the same time as its fighter jet escort which left the same base 1/2 hour after the bomber took off. How many hours did it take a jet bomber to reach the target if the fighter jet traveled 600 miles per hour?
Click here to see answer by ikleyn(52781)

Question 1098918: At 12:00 noon two Mississippi steamboats are 126 miles apart. At 6:00 p.m. they pass each other going in opposite directions. If one steamboat travels 9 miles per hour faster than the other, find the speed of both boats.
Click here to see answer by ikleyn(52781)

Question 1098966: Jim, Tim and Kim have 67 marbles together. Tim has 6 more marbles than Jim and Kim has 8 more fewer marbles than Jim. How many marbles has Tim?
Click here to see answer by Edwin McCravy(20055)

Question 1098969: Two airplane (a passenger plane and a cargo plane) leave Abbotsford airport at the same time. The passenger plane travels at a bearing of 15 degree and a speed of 720 kph. The cargo jet travel at a bearing of 95 degree and a speed of 650 kph. How far apart will they be after 3 hours?
Click here to see answer by Fombitz(32388)

Question 1099258: Can someone explain me how to calculate this. Thank you
If money loses value, then as time passes, it takes more dollars to buy the same item. Use the table to answer the questions. Let t be years and y be the value of $ in t years..
t: 1, 2, 3, 4, 5, 6,
y: 0.98, 0.96, 0.94, 0.92, 0.90, 0.89
a) Suppose a house cost $103.000 today. Estimate the cost of the same house in 6 years?
b) Estimate a cost of $40 textbook in 2 years?
Click here to see answer by addingup(3677)

Question 1099289: Find f(x) given that
f'(x) = x^3 − 2√x, f(1) = 4
Click here to see answer by KMST(5328)

Question 1099350: Find the equations of the tangent and the normal to each of the curves at the given point
(a) y(x) = sin^(2) x + x, point (π/4, π + 2/4)
(b) g(x) = (2x + 1)/e^ x , point (0, 1).

Click here to see answer by Boreal(15235)

Question 1098198: Suppose that over a six-year period ,1,000 dollars accumulated to 1,959 dollars in an investment certificate in which interest was compounded quarterly.
(a)Find the nominal rate of interest, compounded quarterly, that was earned. (Round your answer to 2 decimal places.)
(b) Find the effective annual rate (EAR) rounded to 2 decimal places.

Click here to see answer by jorel1380(3719)

Question 1098720: Suppose you owe $800 on your credit card and you decide to make no new purchases and to make the minimum monthly payment on the account. Assuming that the interest rate on your card is 1% per month on the unpaid balance and that the minimum payment is 3% of the total (balance plus interest), your balance after t months is given by B(t)=800(.9797^t).
Find your balance at each of the given times in parts.
a) six months
After six months, the balance is $_______? (round to the nearest cent as needed)
Click here to see answer by jorel1380(3719)

Question 1097924: A salesman offered to sell a motorcycle for $1,024. A month later his price was $640 and 2 weeks after that he asked $400. Just last week he was willing to sell it for $250. What will his next price be if he make a consistent reduction?

Click here to see answer by jorel1380(3719)

Question 1099394: Why an empty post?
Click here to see answer by Edwin McCravy(20055)

Question 1099482: Assume that at the current exchange rate, the British pound is worth $1.65 in American dollars. You have some dollar bills and several British pound coins. There are 17 items altogether, which have a total value of $21.55 in American dollars. How many American dollars and how many British pound coins do you have?

Click here to see answer by jorel1380(3719)

Question 1099502: 3x-9=2x+2

Click here to see answer by josgarithmetic(39617)

Question 1099468: Artie buys a new car for $15,000. He makes a down payment of $3,000 and the dealer gives him an add-on loan, charging him an annual interest rate of 7.7%. If he takes out a 6-year loan, what will Artie's monthly payments be?
Click here to see answer by Theo(13342)

Question 1099531: Which of the following have x=2 y=1 as the solution 5y+2x
Click here to see answer by richwmiller(17219)

Question 1099531: Which of the following have x=2 y=1 as the solution 5y+2x
Click here to see answer by josgarithmetic(39617)

Question 1099431: (2r^3/s)^3 (s/r^3)^3
Click here to see answer by Fombitz(32388)

Question 1099579: A small business borrows $31,000 for expansion at 7% compounded monthly.
The loan is due in 5 years. How much interest will the business pay? (round to the nearest cent)
Thank you.
Click here to see answer by Fombitz(32388)

Question 1099582: Jim and Susie both work for a landscaping company. Jim can finish a planting job in 4hours, while it takes Susie 3 hours to finish the same job. if Jim and Susie will work together on the job, and the cost of labor is $55 per hour, what should the labor estimate be?
Click here to see answer by josmiceli(19441)

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