Total # Posts: 1,372
A fire engine is rapidly approaching the corner. Explain what happens to the frequency of the sound wave as the fire engine draws closer. What do you hear? Can some please help
December 4, 2015
Marco is studying a type of mold that grows at a fast rate. He created the function f(x) = 345(1.30)^x to model the number of mold spores per week. What does the 1.30 represent? How many mold spores are there after 4 weeks? Round your answer to the nearest whole number A.1.30 ...
November 13, 2015
Suppose just go is selling magazine subscriptions each of the scription cost $20 the company pays the school half of the total sales in dollars the school must also pay a one time fee of $18 right and solve any Quetion to determine the fewest number of the scription that can ...
November 13, 2015
A pine tree stands beside a road that has a 7 degree gradient. When the angle of elevation to the sun is 59 degrees, the tree casts a shadow of 31 ft down slope along the road. What is the height of the tree?
October 23, 2015
1. which of the following is not part of theory of evolution. a. organisms end to produce more offspring than can survive to reproductive age. b. organisms can acquire changes during their lifetime.*** c. organisms that do not survive to reproduce do not pass on their traits d...
October 5, 2015
The leaders of the Virginia Company recruited more settlers and reorganized the colony. They allowed the new settlers to own land. Those settlers began to grow tobacco, a crop they learned about from the Indians. By 1612, Virginians were shipping tobacco to England, which led ...
September 29, 2015
which is a irationaal? a. 0.117117117......** b.0.8596876205.... c.0.812812812812.... d. 0.605605605..... what is 0.32 written as a fraction in simplest form? a.32/100*** b.8/25 c.100/32 d 16/25 plz help
September 28, 2015
1. Which economic activity did not depend on the involvement of African americans ? a. cattle industry b. cultivation of rice c. forest industry d. textile industry*** 2.How did the Huguenots contribute to the economy of calolina? a. they were skilled craftmens** b. they came ...
September 25, 2015
an empty swimming pool is shaped like a rectangular prism with a length of 18 feet and width of 9 feet. Once water begins to be pumped into the pool, the depth of the water increases at a rate of 0.5 foot hour. write a function d(t) that gives the depth in the pool after t hours
September 25, 2015
pretty please help (history)
1. What may have caused religious disagreements amongst the colonists in colonial south Carolina? a. the capital only had an Anglican church** b. settlers weren't religious c. people did not go to church every sunday d. all of the settlers belonged the Anglican church im ...
September 24, 2015
1.What was primary cash crops of Jamestown? a. corn b. cotton c. tobacco*** d. sugar I choose c am I correct 2.What was the main reason settlers founded he new England colonies? a. land for large plantations b. religious freedom c. gold and silver**** d. homes and jobs I ...
September 24, 2015
Colors are used in the image "Figures Veiwing Lake" to create all of the following except a. emphasis the central figure b. symmetrical balance c. unity d. radical balance*** I think d because it anit balance on each side....can someone plz help me out with this ...
September 17, 2015
What are the two main reasons for "a wave of discontent directed at those who have represented (the people) over the decades" as discussed in the article? the guardian article world 2014 apr 07 india-elections-nehru-gandhi-dynasty...
September 15, 2015
a worker has a new pump and an old pump. the new pump can fill a tank in five hours and the old pump can fill the same tank in 7 hours write and solve an equation for the time it will take both pumps to fill one tank if the pumps are used together.
August 27, 2015
Pairs of markings, a set distance apart, are made on highways so that the police can detect drivers exceeding the speed limit. Over a fixed distance, the speed R varies inversely with the time T. For one particular pair of markings, R is 35mph when T is 6 seconds. Find the ...
July 24, 2015
HELP PLEASE! The distance d that an object falls is directly proportional to the square of the time of the fall,t. A person who is parachuting for the first time is told to wait 12 seconds before opening the parachute. If the person falls 64 feet in 2 seconds, find how far he ...
July 24, 2015
to determine the number of catfish in a pond, a game warden catches 131 catfish, tags them and throws them back into the pond. later, 20 catfish are caught, 10 of them are tagged. How many catfish would the game warden expect to be in the pond? 131/10 20/x
June 15, 2015
Victoria tossed a coin 30 times and got 17 heads. What is the ratio of heads to coin tosses? What is the ratio of heads to tails? What is the ratio of tails to heads? If victoria tosses the coin 150 times, how many times can she expect to get heads?
April 26, 2015
chemistry - kinetics
Understanding the high-temperature behavior of nitrogen oxides is essential for controlling pollution generated in automobile engines. The decomposition of nitric oxide (NO) to N2 and O2 is second order with a rate constant of 0.0796 M−1*s−1 at 737∘C and 0....
April 23, 2015
Abraham Lincoln caused four states to join the Confederacy by ________. :Declaring War :Firing on Fort Sumter*** :Emancipating the enslaved people :Calling for troops What Confederate capital was only about 100 miles from Washington, D.C.? :Richmond, Virginia*** :Lexington, ...
April 13, 2015
The admission of Missouri as a slave state was controversial in the Senate because :the Senate was pro-slavery :it would create sectionalism :it would upset the balance*** :The Senate was anti-slavery Am I right?
April 11, 2015
A concave mirror forms a real image twice as large as the object. The object is then moved such that the new real image produced is three times the size of the object. If the image was moved 94.1 cm from its initial position, how far was the object moved? I have no clue how to...
April 11, 2015
What do bone marrow and the epidermis have in common? A) They are both sites of new cell formation B) They both contain structures that assist the body in cooling down if overheating occurs C) They both contain or are associated with sensory neurons D) They are both involved ...
April 7, 2015
The current flowing in a solenoid that is 20.9 cm long and has a radius of 2.40 cm and 552 turns decreases from 3.51 A to 1.03 A in 0.250 s. Determine the magnitude of the induced electric field inside the solenoid 1.20 cm from its center.
April 4, 2015
A taxi hurries for 1 hour 3 minutes wit a constant speed of 118km/hr and then for another 1 hour 9 minutes with a constant speed of 40km/hr. What is its average speed for the total trip?
March 18, 2015
Rotational Motion/Torque The question says that "A 60.0kg painter is on a uniform 25 kg scaffold supported from above by ropes. There is a 5.0 kg pail of paint to one side, as shown. How far from the left end of the scaffold should the painter stand such that the right ...
March 11, 2015
Three liters of nitrogen combine with 9 L of hydrogen to form 6 L of ammonia. If the molecules of nitrogen and hydrogen have two atoms each, how many atoms of hydrogen and nitrogen are there in one molecule of ammonia?
February 24, 2015
(a) Use a graph of f(x) = sqrt(2x^2+9x+5)−sqrt(2x^2+2x+1) to estimate the value of lim x→∞ f(x) to one decimal place. (b)Use a table of values of f(x) to estimate the limit to four decimal places. (c)Find the exact value of the limit.
February 11, 2015
At time t=0, in seconds, a pair of sunglasses is dropped from the Eiffel Tower in Paris. At time t, its height in feet above the ground is given by h(t)=−16t^2+1000. When do the sunglasses hit the ground? Include units in your answer. I got that the height is 1000ft and...
February 2, 2015
two forces act simultaneously on a box. one pulls with a force of 12 pounds due south. the other pulls with a force of 8 pounds in a direction 20 degrees north od east. what is the resultant of these two forces?
February 2, 2015
What is the Earth's gravitational force on you when you are standing on the Earth and when you are riding in the Space Shuttle 380 km above the Earth's surface? Answer as a fraction of the surface gravity of Earth. (The Earth's radius is 6400 km.)
January 27, 2015
A fully equipped astronaut has a mass of 170 kg. If the astronaut has a weight of 675 N standing on the surface of a planet, what is the acceleration due to gravity on this planet?
January 22, 2015
Virtually all the nitric acid manufactured commercially is obtained by the ammonia oxidization process. This involves this first step: Ammonia gas combines with oxygen to form nitrogen monoxide and water vapour. a) Write a balanced equation for the reaction 6 NH3 + 4 O2 -> ...
January 20, 2015
Which question should you ask during third reading of the muti-draft reading progress? A. Who is the speaker, or the voice that "Say" the words of the poem? B. how has the work expanded my idea's or my imagination? C. What do the word choices and imagery tell me ...
January 14, 2015
Which characteristic best describes Chinese brush paintings? (Points : 3) They depict idealized representations of the human form. They include small touches of gold paint to add decorative detail. They feature a limited variety of brushstrokes in order to create a sense of ...
January 8, 2015
9+10= 21. B. R. U. H. DEEZ NUTz GOTYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY BOOM H. E. A. D. S. H. O. T WATERMEl0n. ITS THE WILD FETTY WAP HIDE YOUR POTATOES OMG OMG OMG DAM SUNN ITS A TRIPPLE...
December 21, 2014
3lbs cost $23.25 6lbs cost $46.50 9lbs cost $69.75 12 lbs cost $93.00 15 lbs cost $116.25 Based on the table,what is the constant of proportionality when using weight to find price?
December 17, 2014
in a resort town, the number of people employed during any given month, f(x) in thousands, can be modeled by function f(x) = 2.3 sin 30 (x+1) + 5.5, where x represents the month, with january =1 and february =2 and so one
December 14, 2014