09/21/21

Domain involving cos and tan

suppose x is in the interval [0, π], and it is not in the domain of tan (x). what is cos(2x)? use decimal notation in your answer.
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09/20/21

Business Statistics! Please help
You are selling a product in an area where 30 % of the people live in the city and the rest live in the suburbs. Currently 20 % of the city dwellers user your product and 10 % of the... more
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09/20/21

A culture of yeast grows at a rate proportional to its size. If the initial population is 2000 cells and it doubles after 3 hours, answer the following questions.
A culture of yeast grows at a rate proportional to its size. If the initial population is 2000 cells and it doubles after 3 hours, answer the following questions.1. Write an expression for the... more
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09/20/21

The equilibrium constant is given for one of the reactions below. Determine the value of the missing equilibrium constant.
2 SO2(g) + O2(g) ⇌ 2 SO3(g) Kc = 1.7 × 106 SO3(g) ⇌ 1/2 O2(g) + SO2(g) Kc = ?A. 7.7 * 10^-4B. 3.4 * 10^2C. 1.3 * 10^3D. 1.2 * 10^-6D. 8.5
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09/19/21

probability intro
A jar contains 10 red marbles numbered 1 to 10 and 6 blue marbles numbered 1 to 6. A marble is drawn at random from the jar. Find the probability that the marble is blue or even-numbered. {Give a... more
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09/19/21

find the point on the line x that is closest to...
Find the point on the line x = (1, -1, -1) + t(1, 1, 1) that is closest to (1, -3, 0)
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09/19/21

What is this answer?
The elevation​ E, in​ meters, above sea level at which the boiling point of a certain liquid is t degrees Celsius is given by the function shown below. At what elevation is the boiling point... more
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09/19/21

ap physics 1 question
When Melony dropped her thermoflask off the top of the Spectrum Parking Structure, the object traveled a vertical distance of h in the first second. In terms of h, how far did the thermoflask... more
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09/17/21

Need explanation of multivariable calculus question
Give a geometric description of the set of points in space whose coordinates satisfy the pair of equationsi) x = 2 ,y = 3ii) x=-1,z=0iii)y=0,z=0iv)x=1,y=0
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09/17/21

Having issues with this compound lens problem
I am having trouble finding the focal length of the objective lens in this problem.The barrel of a compound microscope is 16.2 cm in length. The specimen will be mounted 1.11 cm from the objective,... more
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09/17/21

Can I please get help on solving the structure of the next question?
A golfer takes three strokes to putt a golf ball into a hole. On the first stroke, the ball moves 5.9 m due east. On the second, it moves 3.0 m at an angle 20° north of east. On the third, it... more
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09/16/21

Explain why CH3Ch2NHCh3 has a higher boiling point than (CH3)3N even though they have the same moloecular weight

Explain why CH3Ch2NHCh3 has a higher boiling point than (CH3)3N even though they have the same moloecular weight
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09/16/21

Write the anode and cathode reactions for a galvanic cell that utilizes the reaction: Al(s)+Cu2+(aq)→Al3+(aq)+Cu(s)
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09/16/21

physics vectors
If A = i + 5j - k and B = -3i - 2j + 5k. Answer the following problems.2A + BA – 2BA • BA X B
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09/15/21

Normal distribution
Suppose we are told that weights of 1-year-old boys are approximately normally distributed, with a mean of 22.8 lbs and a standard deviation of about 2.15. (Source: About.com) If we randomly select... more
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09/13/21

Calculate the wavenumbers in cm-1 for
Calculate the wavenumbers in cm-1 for the first three lines for the Brackett series of the hydrogen atom, where n1 = 4.
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09/12/21

physics problem

  A man pushes a crate up a rough slope as shown in the figure. The crate is accelerating up the slope. If necessary, use Fs to denote the force of static friction and Fk to denote the kinetic... more
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09/12/21

Empirical Rule and Chebyshev's Theorem
Consider a data set that has a mean of 44.6 and a standard deviation of 7.6. According to Chebyshev's Theorem, give an interval that has at least 89.99% of the data.
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09/10/21

you need to add __ J of heat to raise the temperature of 110 grams of water by 19 degrees celsius

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09/10/21

Write the rational equation given the characteristics below. Leave in factored form.
vertical asymptotes at x = − 6 and x = − 3 x -intercepts at x = − 4 and x = 3 horizontal asymptote at y = 4
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09/10/21

find the largest to smallest radius. F^+, Na^+, Mg^(2+), O^(2-). explain.
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09/10/21

flying show exhibition
Luka is practicing vertical circles for a flying show exhibition. What must be the minimum radius of the circle hoop to ensure that his acceleration at the bottom does not exceed 7.22 g? The speed... more
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09/10/21

Write an equation for a function that has the graph with the shape of y=|x|, but shifted right 8 units and down 6 units.

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09/10/21

Find the equation of the tangent lines to the graph of the curve y=x^3-12x through the point (1,-12) not on the graph.
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09/09/21

Determine the cost per hour on
It costs 140 SEK more to rent a padel court for an hour on weekends than on weekdays.Three hours on a weekend costs 50 SEK more than five hours on a weekday.Determine the cost per hour ona)... more
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