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Question 1144223: A large vase has a square base of side length 6cm, and flat sides sloping outwards at an angle of 120° with the base. Water is flowing in at 12cm^3/s. Find, correct to three significant figures, the rate at which the height of water is rising when the water has been flowing in for 3 seconds.
Click here to see answer by Alan3354(69443)  |
Question 1144510: Write a formula showing the dependence of the mass of a piece of cork on its volume, if the density of cork is 0.18g/cm3 Using the formula, find the mass of a piece of cork with a volume of 240 cm3
If the mass of a piece of cork is m, and its volume is v, the formula will be
If v = 240 cm3, m = g
Click here to see answer by Alan3354(69443)  |
Question 1144512: A bicyclist traveled with a speed of 12 km/h from a camping ground to a station, located 60 km away. Write a formula expressing the dependence of the variable s on t, where s is the distance between the bicyclist and the station in km, t - the duration (time) of his travel in hours. Using the formula, find:
A)
s for t=3.5
The formula is
.
For t = 3.5, s =
.
B) t for s=30
The formula is
.
For s = 30, t =
Click here to see answer by richwmiller(17219)  |
Question 1144512: A bicyclist traveled with a speed of 12 km/h from a camping ground to a station, located 60 km away. Write a formula expressing the dependence of the variable s on t, where s is the distance between the bicyclist and the station in km, t - the duration (time) of his travel in hours. Using the formula, find:
A)
s for t=3.5
The formula is
.
For t = 3.5, s =
.
B) t for s=30
The formula is
.
For s = 30, t =
Click here to see answer by josgarithmetic(39617) |
Question 1144762: A man bought a house at $350,000. He paid 20% of the cost from his own resources and the rest with a loan he took from the bank at 7% simple interest per annum for 8 years. Calculate the;
(a) total cost of the house to the man.
(b) percentage increase in the cost of the house as a result of the loan.
(c) percentage loss, correct to the two decimal places, if after paying the loan, he renovates the house at a cost of $10,000 and then sells it for $460,000.
Click here to see answer by josmiceli(19441)  |
Question 1144872: Glo-Tek Industries has designed a new halogen street light fixture for the city of Seattle. According to the product literature, when placed on a 50 foot light pole, the resulting useful illuminated area is a circular disc 120 feet in diameter. Assume the light pole is located 20 feet east and 40 feet north of the intersection of Parkside Ave. Write the equation of the illumanted area and graph the function.
Click here to see answer by ikleyn(52778)  |
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