Saturday
August 30, 2014

Posts by Anonymous


Total # Posts: 69,925

rounding
146.627 rounded to the nearest tenth of a foot? I got 146.6 but that wouldn't be it right, because it has to be a whole number so 147?
May 30, 2014

HELP!!!!
Lee is on a cliff 360 m above sea level, the angle of depression of a ship is 28 degrees. To the nearest meter, what is the distance between the ship and the base of the cliff? Would this be set up 360/tan28 due to it being the angle of DEPRESSION?
May 30, 2014

Physic
A standing wave is formed on a string for which three and one half wavelengths fit into the total length of the string, which is 2.5 m. The wave has a period of 0.10 s. If the string has a mass density of 220 g/m, what is the tension in the string? (Answer: 11.2N) Answer is ...
May 30, 2014

Physics
Thank you so much
May 30, 2014

Physics
A 2.50 kg fireworks shell is fired straight up from a mortar and reaches a height of 110. m. (a) Neglecting air resistance (a poor assumption, but we will make it for this example), calculate the shell’s velocity when it leaves the mortar. (b) The mortar itself is a tube ...
May 30, 2014

Physics
A 75.0 kg skydiver is free falling at 65.0 m/s when she pops her parachute. As the 'chute opens she slows to 5.50 m/s over a distance of 45.0 m. What force does the parachute exert of her harness during this time?
May 30, 2014

help
A person standing 34 meters from the foot of a chimney finds that the measure of the angle of elevation to the top of the chimney is 52 degrees. To the nearest tenth of a meter, find the height of the chimney.
May 30, 2014

how would i set this up?
According to the Americans With Disabilities Act, a ramp can rise no more than 1 ft for every 12 ft of horizontal distance. To the nearest tenth degree what is the maximum angle that the ramp can form with the ground?
May 30, 2014

trig! check my answe please
An advertising blimp hovers over a stadium at an altitude of 125 m. The pilot sights a tennis court at an 8o angle of depression. To the nearest meter, find the ground distance in a straight line between the stadium and the tennis court. I set it up 125/tan8, knowing its a ...
May 30, 2014

binomial thearm
x to the power of 10 +5x to the power of 9 +4x to the power of 8 divided by x+2
May 30, 2014

physics
A 0.180 kg block on a vertical spring with spring constant of 4.00 ✕ 103 N/m is pushed downward, compressing the spring 0.061 m. When released, the block leaves the spring and travels upward vertically. How high does it rise above the point of release?
May 29, 2014

physics
An 66.0 N box of clothes is pulled 5.5 m up a 30.0° ramp by a force of 116 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy.
May 29, 2014

physics
A 56.0 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force 1310 N. If the diver comes to rest 4.1 m below the water's surface, what is the total distance between the diving board and the diver's ...
May 29, 2014

Algebra
1. 6e^-x=3 2. 32(1.5)^x=640 3.5000/(1.05)^x=250 4.50(3-e^2x)=125
May 29, 2014

algebra
Julia can finish 20 mile bike ride in 1.2 hrs. Katie can finish the same bike ride in 1.6 hrs. How much faster. Does Julia ride then katie
May 29, 2014

geometry
The endpoints of are A(2, 2) and B(3, 8). is dilated by a scale factor of 3.5 with the origin as the center of dilation to give image . What are the slope (m) and length of ?
May 29, 2014

Microeconomics
x 130
May 29, 2014

Precalculus
* I know how to graph this but I don't know how to punch the equation in correctly. I am not sure about the window either.. How can I type this equation in the graphing calculator? y=pi(25-x)^2 • 2x Note, the 2x is NOT multiplied by 2.. Show how I can type this in...
May 29, 2014

physics
A pair of sleds weighs 25kg and experiences a frictional force of 25N. If a dog team applies a 175N force pulling it 12m. 1. Find the work done by friction 2. Find the work done by the dog team 3. Find the net work done I need to compare my answers so the could you please post...
May 29, 2014

Physics
a person pushes on a hockey puck with their stick at an angle so the vertical force is 22N down and the horizontal force is 45N forward. Assume the ice is frictionless. What is the actual force the hockey player transmits to the puck? what is the work done by the person ...
May 29, 2014

college algebra
The sum of three consecutive natural numbers is 651, find the numbers. 3*7*31 21*31=651 is what I put for my answer but that was incorrect on the homework. Please help me Another Question I had problems with was :Your weekly paycheck is 25 percent less than your coworker's...
May 29, 2014

college algebra
Two cyclists, 64 miles apart, start riding toward each other at the same time. One cycles 3 times as fast as the other. If they meet 2 hours later, what is the speed (in mi/h) of the faster cyclist? Let "x" be the slower rate the faster rate is "3x" x+3=2x ...
May 29, 2014

chem 2
Consider a chromium-silver voltaic cell that is constructed such that one half-cell consists of the chromium, Cr, electrode immersed in a Cr(NO3)3 solution, and the other half-cell consists of the silver, Ag, electrode immersed in a AgNO3 solution. The two electrodes are ...
May 29, 2014

Precalculus
How can I type this equation in the graphing calculator? y=pi(25-x)^2 • 2x Note, the 2x is NOT multiplied by 2.. Show how I can type this in .. Parantheses and other notions ......
May 29, 2014

college algebra
One positive number is one-fifth of another number. The difference between the two numbers is 200, find the numbers. Im not sure how to approach this problem x-1/5 = x+200 ? I also keep wanting to divided 200/5 .. Please help Im all over the place not sure what to do
May 29, 2014

college algebra
7x+2,000-4x=2830 3x=5030/3 x=1,676 ?
May 29, 2014

college algebra
Phyllis invested 55000 dollars, a portion earning a simple interest rate of 4 percent per year and the rest earning a rate of 7 percent per year. After one year the total interest earned on these investments was 2830 dollars. How much money did she invest at each rate? 2380-x...
May 29, 2014

Science
I meant C Oops!!
May 29, 2014

Science
Oh i get it so it is D?
May 29, 2014

Science
Is 6 A?
May 29, 2014

Science
And I don't know 5 or 6
May 29, 2014

Science
I don't know 3 but i think 4 is D?
May 29, 2014

Science
Is number 2 A?
May 29, 2014

Science
Okay I know 1 is b
May 29, 2014

Science
Really?!?! Please help me!!!!!!!!
May 29, 2014

Science
6 is D?
May 29, 2014

Science
1. How does a nuclear power plant produce energy? A. Through solar panels B. Through nuclear fission reactions C. Through geothermal heat D. Through nuclear meltdown reactions<------------ 2. How can human population growth affect ecosystems like rain forests? A. Human ...
May 29, 2014

math
mbln
May 29, 2014

math
Todd's birthday has the same date as the number of letters in the mouth ( for example May 3). If his birthday is written in this form - mouth/day/14- and the sum of the mouth and the date is greater than the year (14), what is the probability that his birthday is before ...
May 29, 2014

help
An advertising blimp hovers over a stadium at an altitude of 125 m. The pilot sights a tennis court at an 8o angle of depression. To the nearest meter, find the ground distance in a straight line between the stadium and the tennis court.
May 29, 2014

Science
Yes
May 29, 2014

Science
How do fossil fuels contribute to air pollution? by reversing the greenhouse effect
May 29, 2014

Science
So the first one??
May 29, 2014

Science
how can using biomass fuel instead of gasoline in car engines help conserve natural resources? It burns more fossil fuels It reduces the use of coal<--- It uses a renewable resource
May 29, 2014

College Algebra
Wilma drove at an average speed of 35 mi/h from her home in City A to visit her sister in City B. She stayed in City B 15 hours, and on the trip back averaged 50 mi/h. She returned home 41 hours after leaving. How many miles is City A from City B Distance = Speed * Time D= 35...
May 29, 2014

MATH PLZ HELP
There are 4 pink erasers and 14 in total so is the answer 4/10 or 2/5?
May 29, 2014

MATH PLZ HELP
i do not know how to do this question. can someone help me with this question? 7. A jar contains 5 green erasers, 2 striped erasers, 4 pink erasers, and 3 white erasers. You select an eraser at random. What is P(not pink)?
May 29, 2014

Science (Please check!)
You are Correct:)
May 29, 2014

Math
can someone help me find 1 - 2/7 in fraction not decimal?
May 29, 2014

Science
Is #2 B?
May 29, 2014

Science
4b and 5a
May 29, 2014

Science
1. Which of the following is the most effective way to preserve biodiversity? A) Captive breeding B) Habitat destruction C) Habitat preservation<---- D) Habitat fragmentation 2. A county commissioner wants to reduce the amount of waste sent to the local landfill. Which of ...
May 29, 2014

Trig
Charo is 50 feet from the tallest totem pole, located in Alberta Bay, Canada, which has a height of 173 feet. If Charo’s eyes are 5 feet from the ground, find the angle to the nearest degree of elevation for her line of sight to the top of the totem.
May 29, 2014

history japanese americans
or would not paying them reparation reinforce slavery
May 29, 2014

history japanese americans
are there any suggestions for this question Why would America pay reparations to victims and family members of Japanese Americans who were placed in internment camps, Jewish survivors and family members of Nazi death camps and even those who we went to war with (see military ...
May 29, 2014

Art
Variety- Things that are different. Describe two separate instances in the painting of "The Family of Carlos IV" where things are different.
May 29, 2014

Language Arts CHECK ANSWERS
3. Everyone admired the grandeur of A. the rose garden. B. the mountains. ** C. the car. 10. Which sentence corrects the following sentence? Isnt that she by the side of the pool? A. Is that her by the side of the pool? B. Is that hers by the side of the pool? C. The sentence ...
May 29, 2014

Science
3rd
May 29, 2014

Science
Kudzu, a nonnative species, was brought to Georgia for decorative purposes. It is a vine that grows quickly and covers anything in its path. It can also grow on trees and block the sunlight. How is kudzu an environmental issue for Georgia? (1 point) Kudzu can easily be removed...
May 29, 2014

math
. 3 gal = ____ qt. 22. 5 cups = ____ tsp 23. 15 lb = ____ kg 24. 150 ml = ____ Tbsp 25. 3 qt = ____ oz = _____ tsp
May 29, 2014

algebra
2x-x^3>=0 solve for x
May 28, 2014

College Algebra
x/(2x-4)-7=1/(x-2).. How I clear this denominator if I must clear it at all.. Im not sure how to approach these problems.I have several others similar to this 1/2y+ 4= 1/7y I changed the denominators to 14y, then got 7/14y+ 4= 2/7y but my online homework says that is incorrect...
May 28, 2014

College Algebra
7/(x+1) - 3/2 =6/(3x+3) Im not sure how to begin, I thought abou clearing the denominators by multiply everything by (x+1)(2)(3x+3) but that didnt work out.
May 28, 2014

penn foster
When three lilies are arranged in a pattern in which the largest lily is lowest and the next one up is smaller and the next one is even smaller than the second, the designer is using the technique called
May 28, 2014

College Algebra
2/9+-5/6= -8 -(-3/7 k) The answer I got found was 82k=-903 I then divided that by 82 and found k=-11.0121. Which was incorrect, please help me.
May 28, 2014

physics
The power output of a star is 7.22 x 1028 watts. Every 47.0 seconds, the star converts _________ kg of its mass into energy.
May 28, 2014

geometry
Rewrite the following in If-then form: the product of x and y is an odd multiple of 5
May 28, 2014

College Algebra
Let Z be equal to (2-5i) The question is z^2 +iz -(5+i) The answer I got for this was -22 + 18i but it isn't correct on my homework page please help/
May 28, 2014

College Algebra
Write the following in a+bi form (-5-i)/(3-3i) -5/3 and 1/3i (-5/2i)/(-1/5i) 23 and 0i (-2i)^3 -2 and 0 Im having trouble with these probems and here is my answers. PLEASE HELP
May 28, 2014

College Algebra
Write the following a+bi form i(3.14-3i) Please help. I believe that the answer is 3.14i-3i, which would be (3.13*-1)-3*-1. however this was incorrect please tell me where I went wrong
May 28, 2014

Science
1. Which of the following is evidence that groundwater cause erosion and deposition ? a) the formation of meanders b) the formation of large boulders in the desert c) the formation of alluvial fans d) the formation of stalagmites and stalactites in caverns <----
May 28, 2014

Math
Here are 5 questions I cannot figure out 1. Is every parallelogram a square? 2.Is every rhombus a square? 3. Is every square a rhombus? 4. Is every rectangle a parallelogram? 5. Is every rectangle a rhombus? Thank you so much for answering
May 28, 2014

MATH
Ido not know how to do this. A jar contains 5 green erasers, 2 striped erasers, 4 pink erasers, and 3 white erasers. You select an eraser at random. What is P(not pink)? (1 point)
May 28, 2014

Science
Which of the following statements describes the difference between physical and chemical weathering? Chemical weathering changes the composition of a rock, while physical weathering does not.
May 28, 2014

Science
How is an area’s topography determined? B. By using an areas elevation relief and landforms How do Global Positioning Systems use elevation points on Earth’s system to find latitude and longitude? A. By using signals form a network of satellites How are lakes and ...
May 28, 2014

Science
Which part of the ocean floor is part of the continuous underwater mountain range that circles Earth? B. Mid-ocean ridge Which of the following statements describes the difference between physical and chemical weathering? B. Physical weathering is caused by ice, while chemical...
May 28, 2014

Science
How is an area’s topography determined? B. By using an areas elevation relief and landforms How do Global Positioning Systems use elevation points on Earth’s system to find latitude and longitude? A. By using signals form a network of satellites How are lakes and ...
May 28, 2014

math
After flying at an altitude of 9 kilometers, an airplane starts to descend when its ground distance from the landing field is 175 kilometers. To the nearest degree what is the angle of depression for this portion of the flight?
May 28, 2014

Math
No, its just one. On my paper it says: 16. A jar contains 120 beads a. What is the angle measure for orange. I got 144. b. How many red beans are there? On the graph it shows the angle measure is 66
May 28, 2014

Math
A jar contains 120 beads. b. How many red beans are there? The angle degree is 66, how would I find this out? I don't know how to.
May 28, 2014

economics
are there any welfare or subsidy payments that should be reviewed or added
May 28, 2014

math
Suppose f(x) = x^3 on the interval [1, 4]. Use the Mean Value Theorem to find all values c in the open interval (1, 4) such that f'(c)= (f(4)-f(1))/4-1 c= square root of 7 c= cubed root of 21 c = 7 Mean Value Theorem does not apply
May 28, 2014

calculus
Identify the open intervals) where the function f of F(x)= x√10-x^2 is increasing.
May 28, 2014

American government
the first news about the monica lewinsky scandal appeared: A on FM radio morning jockey shows. B on prime-time news C on CNN D through posts on the internet
May 28, 2014

calculus
A golf ball is hit off the top of a cliff that is 75 feet tall at an angle of 45° to the horizontal with an initial velocity of 80 feet per second. The quadratic equation shown below models the height, h(x), of the ball when it is x feet from the cliff’s edge. How far...
May 28, 2014

Geometry
Abcd is a parallelogram. If m<bcd = 113 , then m<dab = ?
May 28, 2014

chemistry
) A chemist dissolves 1.000 x 103 g of potassium hydroxide in enough water to make 1.5 L of stock solution. The chemist later wants 2.00 x 102 mL of 0.10 M potassium hydroxide. How much stock solution does the chemist need in order to make this second solution?
May 28, 2014

Language Arts (CHECK ANSWERS)
I believe you are correct :) Anyone else know? lol
May 28, 2014

Physics
A train 900'm long takes 1minute to cover a bridge of 300 m calculate its average speed
May 27, 2014

trig length
To secure a 610-meter radio tower against high winds, guy wires are attached to a ring on the tower. The ring is 7 meters from the top. The wires form a 69o angle with the ground. To the nearest hundredth meter find the length of the guy wire
May 27, 2014

English
There arent any
May 27, 2014

English
I need help finding quotes about haunting past in the book The Stone Carvers. Please.
May 27, 2014

English
What food represents bravery? (Someone who is brave)
May 27, 2014

English
How does Flaubert criticize the institution of family and marriage in Madame Bovary? I need to write an essay and was also wondering if these were good points to talk about. 1. Emma's childhood and the education of girls sets them up for disappointment in marriage because ...
May 27, 2014

physics
Find the required angular speed, ω, of an ultracentrifuge for the radial acceleration of a point 2.00cm from the axis to equal 6.00×105 g (where g is the acceleration due to gravity).
May 27, 2014

Science
1.How are continental glaciers different from valley glaciers? C. Continental glaciers flow in all directions as they move, while valley glaciers mice down slopes already cut by rivers 2. How does the process of plucking cause erosion D. Rocks are mixed with sediment and ...
May 27, 2014

physics
What is the maximum walking speed of an adult man whose legs are each 0.90 m long?
May 27, 2014

general chemistry
how to calculate molarity?
May 27, 2014

algebra
given the function rule f(x)=x^2-4x+3, what is the output of f(-3)
May 27, 2014

Economics

May 27, 2014

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