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Determine length of the arc with angle 120 degree in the circle with 12 meters. Compute all values of t in interval [0,2pi] which satisfy 2 cos t + 1 =0.
How many people live in New York in year 2008? Find out when population will reach 10 million mathematically. Verify graphically.
Rectangular solar panel is 10 cm by 15 cm. By adding same amount to each dimension, area is doubled. How much is added.
Revenue got by selling x graphing calculators is estimated to be x(30-0.5x) dolars. Cost of each calculator is $18. How many graphing calculators should be sold to make the profit of at least $59.5
Match equation of ellipse with suitable description. 9x2 + 25y2 = 2025 Options are- Intercepts are (±15, 0) and (0, ±9). Intercepts are (±9, 0) and (0, ±15).
Determine the cell potential, E, for a voltaic cell composed of one compartment containing a Pb(s) electrode immersed in 1.0MPb2+(aq), and a second compartment having a Pt(s)electrode immersed in the
If bearing is chosen so that boat will land at the point exactly across from its starting point, how long will it take for boat to make crossing?
If revenue R, in dollars, is R(p) = -1/2p^2 + 1900p (a) Find at what prices p is revenue zero? (b) For what range of prices will revenue go over $1,200,000?
It costs the manufacturer $8.95 to make sunglasses which sell for $29.99. How many pairs of sunglasses should manufacturer sell to make the profit of $17,884?
Determine the pressure of two moles of H2 gas using perfect gas law and then the van der Waals equation for a system with having 1.0dm^3 volume at 25 C.
A balloon of Xe gas through the research having a mass of 262g in a 1.0 dm3 volume exerts pressure having 40.1at m at 25 deg. calicos. Why does Xenon behave like a perfect gas?
Determine the number of grams of Potassium Hydrogen Phthalate, KHP, are necessary to make the 500 mL of 0.48 M KHP? Where the formula weight= 204.23
They then move their equipment 1000 feet closer to mountain and take another reading. This angle measures 5.0 degree. Determinhe the height of mountain.
Explain the name of the major organic product which is taken from the reaction between the1-phenyl-1-ethanol and it concentrated the sulfuric acid when excited.
Discuss the list and the four most significant that control the relative reactivity of a carbonyl functional group in an addition or a substitution reaction.
Analyze the volume of propylene glycol, in gallons, required to produce the same antifreeze protection as 3.00 gallons of ethylene glycol.
Write first four terms of sequence, An, giving US consumption of natural gas n years after 2003. Write first four terms of the similar sequence bn showing Asian gas utilization.
An element having the sample of a 2.077 g, which has an atomic mass among 40 and 55, reacts with oxygen to form 3.708 g of an oxide. Calculate the formula of the oxide (and identify the element).
Determine the molality in the mol/ kg using the formula ΔT= Kf the KF VALUE for lauric acid is 3.9i did that and they got molality and Δt/kf = 1.9 mole kg
The sample of Tap Water consists of water, calcium ions, fluoride ions and the several other dissolved ions. The ions are squarely distributed throughout the water. Explain which term could be used
Calculate the volume at 80°C if the balloon measures the 1.25 L at the room temperature. A balloon having the sample of the helium gas which is warned in an oven.
Angular displacement theta of the certain pendulum bob in terms of its initial displacement theta 0 is theta = theta 0 cos wt . If w = 7.00 rad/s and theta 0 = pi / 34 rad, sketch two cycles graph
What is the density if an unknown solid weighs the 84.0 grams and occupies the 30.0cm3 of space? Determine the mass of a liquid which is having the volume of 3.5 liters and a density of 1.50 g/ml
Determine the number of milliliters of the stock solution which is taken for the dilution and it is desired to prepare the 0.500 L of a 0.100 M solution of NaCl from a 1.00 M stock solution.
Let (x,y) be the point on graph of parabola y = f(x) = x^2 + 8. a) State distance (d) from (x,y) to point (9,5) as a function of x. b) Approximate point on parabola which is closest to (9,5).