08/23/20

Question in description

During a total eclipse of the sun, the moon is directly in line with the sun and blocks the sun rays. The distance DA between the earth and sun is 93,000,000 miles the distance De between earth and... more
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08/23/20

Find the average rate of change of the function on the interval specified for real number h, j(x) = 7x^3 on [1, 1 + h]

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08/23/20

If you are dealt 4 cards from a shuffled deck of 52​ cards, find the probability that all 4 cards are clubs.
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08/22/20

If 1800 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box.
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08/21/20

Geometry Problem
How to calcualte the surface area of a cone with 6 cm radious and 15 cm height
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08/21/20

Suppose g is the inverse function of f and f(4) = 5, f(5) = 2, f'(4) = -3/4 , and f'(5) = 2/3. Find g'(5).
Calculus 2 homework problem and I don't even know where to begin. Thank you for any help.
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08/21/20

Find the image of (-3,8) after a 270 rotation counterclockwise about the origin
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08/21/20

A model rocket leaves the ground at time t=0 and travels straight up from the ground.

The height, in feet, of the rocket above the ground is given by y(t), where t is measured in seconds for 0≤t≤120. Values of y(t) for selected values of t are given in the table above. Of the... more
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08/20/20

When 75g of sodium sulfite and 80.0g of hydrogen bromide are reacted, the products formed are sodium bromide and hydrogen sulfite. Calculate the mass of sodium bromide produced.

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08/20/20

Ventilation of a thick, metal Faraday Cage/Physics or Engineering question
How can you permit airflow in a faraday cage built of thick metal that shields high and low frequencies?
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08/20/20

Can you please help me with this question? I'm not sure I get the picture here.
A farmer has 200 feet of fencing to surround a small plot of land. He wants to maximize the amount of space possible using a rectangular formation. The enclosed area will be against the side of a... more
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08/20/20

I put it in the description box

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08/20/20

The population of Arizona is about 4.78x10 6. The land area of Arizona is about 1.14x10 5 square miles. What is the population density per square mile?

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08/20/20

Jupiter has a mass of 1.9 × 1027 kg, and its moon Europa has a mass of 4.8 × 1022 kg. Their centers are separated by a distance of 670,900 km.
a. What is the force of gravity acting on Europa? b. What is the acceleration of Jupiter due to the force of gravity between it and Europa?c. Europa has a radius of 1569 km. What is the... more
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08/20/20

Chemistry, 11th grade
Hello,my question:20) If we want a solution containing 12 mol/l of HCl we must- Dissolve 219 g HCl in 500 ml H2O- Dissolve 50 g HCl in 114 ml H2O- Dissolve 656 g HCl in 2 litres of water Thank you... more
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08/20/20

Which Cole contains more caffeine?
A 500-mL bottle of Coke Zero contains 48mg of caffeine. A 500-mL bottle of Diet Coke contains 65 Mg of caffeine. Which contains more caffeine: a 12-oz can of Diet Coke, or a 20-oz bottle of Coke Zero
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08/19/20

How many ounces of each will be used if the juice drink is to be sold in 5​-ounce ​cans?
A juice company sells apple juice for 12 cents an ounce and apple drink for 6 cents an ounce. They wish to market and sell for 10 cents an ounce cans of juice drink that are part juice and part... more
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08/19/20

The school is how many ​mile(s) from their house.
A brother and a​ sister, Sofia and​ Daniel, jog to school daily.​ Sofia, who is​ older, jogs at 10 miles per hour. Daniel jogs at 6 miles per hour. When Sofia reaches the​ school, Daniel is 3/4... more
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08/19/20

The perimeter of a rectangular field is 60 meters. Its area is 200 square meters. Find the dimensions

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08/18/20

Algebra 2 Distances

Find the distance between (2,-6) and (7,4)
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08/18/20

Trigonometry Word Problem
The water at a local beach has an average depth of one meter at low tide and an average depth at high tide of 8m. One cycle of the tides takes approximately 12 hours. This periodic motion can be... more
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08/17/20

please please help

A triangle has three angles. The second angle is 20° more than the first. The third angle is 8° more than the second. Find all three angles. Show your work
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08/17/20

IF 2^(3x) = 3 FIND 4^(9x-2)
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08/17/20

A heater puts out 2070 Btu of energy in the form of heat per hour. Given that 1 Btu=1.055 kJ, how many megajoules of energy in the form of heat can be produced per year (365 days) by the heater?
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08/17/20

Convert a speed of 209 cm/s to units of inches per minute. Also, show the unit analysis by dragging components into the unit‑factor slots.
Show the steps of how you got the answer.
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