# Posts by charlie

Total # Posts: 471

math
solving a natural log

math

math
If you invest \$1000 at 3% interest compounded semiannually. when will the investment be worth \$1500 ? 1000(1 +.03/2)^q= 1500 not sure if this is right ? thanks

physics
A hippo has a mass of 6000kg. When standing on 4 feet, how much pressure is exerted on the ground? Assume each foot has an area of 0.10 square meter. Show your work.

maths
Calculate the area of the following triangles, giving your answers to 2 decimal places: (a) The right-angled triangle with sides a=16, b=63, and c=65. (b) The triangle with angle ? = 40° and adjacent sides b=10 and c=20.

Algebra
There are 3 red chips and 2 green chips. You win the game if you take out all the chips of the same color. What is the probability you take all the green chips out?

Algebra
In a set of 6 numbers, {-2, -1, 0, 1, 2, 3}, what is the probability the product of any two numbers is zero?

math
A 5.35 kg steel block is spun around a motor at 36.5 rpm. The angular acceleration of the block is -2.14 rads/s^2 and it takes 1.79 s for the block to come to a complete stop. What is the angular displacement while the block slows to a stop?

Statistics
a ball rolls off a table and falls 0.80 m to the floor, landing with a speed of 4.5 m/s. 1. What was the initial speed of the ball? 2. What initial speed must the ball have if it is to land with a speed of 5.8 m/s? 3. What is the magnitude of the acceleration of the ball just ...

logarithm functions
use the properties of logarithms to expand the expression as sum, difference or multiple of logarithms. Simplify. a.log(x^3/2) b.log base4 16a

math
a board is 19ft 9inches long is cut into nine equal pieces to the nearest inch. how long is each piece? how many inches of board will be left over?

math
a+b=76 a-b=38 a/g=?

Chemistry
How would one work through this problem? -Calculate the number of liters of 1.25M solution that can be made from 6.400g of barium nitrate. - I know that it's just stoichiometry, but I'm confused. The formula for molarity is the number of moles of the solute divided by ...

Chemistry
What volume of coffee (pH =5.0) would be required to have .25 moles of H3O+ ions? (Hint: two step)

Physics
D.0

Language arts
Yes number two is correct.

Chemistry
Thank you so much.

Chemistry
I am sorry I think autocorrect changed it to that. It is supposed to so corrected no or reacted.

Chemistry
Some hydrogen is collected over water at 10 degrees C and 105.5 kPa pressure. The total volume of the sample was 1.93 L. Calculate the volume of the hydrogen or reacted to STP.

I believe that A is a good thing, but is it really a rule to be used in an A.U.P? I think not, the answer is B.

life orientation
she should go through it cautiously and be smart about it. don't try to fix it then and there, do it gradually so she can get it done alright and efficiently. don't try to push it

life science,mathematics,agricultural,tourism
whatever study field your heart desires. what do you think will make you happy to wake up to in the morning. what will make you love your job and your career choice? if you can see yourself happy with whatever it is then GO FOR IT :D

10 drivers ed questions?
if you look up the drivers manual online, you should find it.

10 drivers ed questions?

history,geography,life science,maths literacy
why don't you do it yourself? nobody is going to do your work for you!

Geometry
Thanks!

Geometry
Find the area of each rectangle wit the given base and height... A=lw 1) 4ft, 4in 2) 30in, 4yd 3) 2ft 3in, 6in 4) 40cm, 2m

Physics,geo,life scince,pure maths,
how about you learn some basic grammar first :)

Geometry
WHICH STATEMENT IS TRUE? a) a right angle has a complement b)and obtuse angle has a complement c)the supplement of a right angle is a right angle d) every angle has a supplement****

Math
Can you show me how to translate 9^x six units to te right? Thanks

math
Erica started her own pizza restaurant. She offers one type of crust, one kind of sauce and 6 different toppings: sausage, pepperoni, mushroom, onions, green peppers and tomatoes. 1. How many different two-topping pizzas can she make? 2. Erica decides to offer three kinds of ...

math

math
thanks

math
I need 1 paragraph explaing where math came from for my uncle

j
5/7=40/X (cross multiply) 5X=280 X=56 B

Chemistry
look at any mole, what is the ratio of particles of the numerator compared to the number of particles in the denominator?

Can someone help me on imperialism???
I had no assigned materials Ms sue, This was it, i was told to research it and figure it out. i just needed a little bit of help. Thank you reed for your help!

Can someone help me on imperialism???
No choices, this is study material for a project that's due next week, these are questions to help me study for it.

Can someone help me on imperialism???
I need help identifying this, can you give me some help? Identify the situation regarding Imperialism. Identify what Americans thought about Imperialism or Isolationism.

Check 2 of my world history answers??
i didn't repost them.. i got it now

Check 2 of my world history answers??
Thanks for the reading suggestion Damon, ill be sure to read it.

Check 2 of my world history answers??
star* by my answer 2. All of the following are considered causes of the Great Depression EXCEPT Problems in Agriculture** Uneven distribution of wealth Lack of stock available 7. Hoover believed in which of the following strategies to end the Great Depression? Volunteerism and...

star* by my answers 1. This man became President after the 1928 election and became the "face" of the Great Depression in the United States. Theodore Roosevelt Woodrow Wilson Herbert Hoover** 2. All of the following are considered causes of the Great Depression ...

star* by my answers 1. This man became President after the 1928 election and became the "face" of the Great Depression in the United States. Theodore Roosevelt Woodrow Wilson Herbert Hoover** 2. All of the following are considered causes of the Great Depression ...

Algebra 2
Thank you.

Algebra 2
Two times a number subtracted from its square equals 143. Find the number(s).

World history/ Latin America
1. The policy by which strong nations extend their control and influence over weaker territories is called? Socialism Imperialism * Populism 2. This theory justified the use of racial, national and cultural superiority that nations used to build their empires? Populism * ...

World history/ Latin America
sorry let me put my answers, i put the wrong one.

World history/ Latin America
Check my answers please?? i have a star by my answer. 1. The policy by which strong nations extend their control and influence over weaker territories is called? Socialism Imperialism Populism 2. This theory justified the use of racial, national and cultural superiority that ...

maths
there are 12 sweets in a bag. 7 of the sweets are strawberry flavou. 5 of the sweets are lime flavour. harriet takes 2 sweets at random work out the probability that she takes at least one strawberry sweet.

Kinesiology
What is your opinion about companies that charge higher insurance premiums for their employees who have health risk behaviors (i.e Obese, Tobacco Users, etc.)?

History
8. How did Native Americans and whites differ in their views on land use? * Native Americans saw themselves as part of nature and considered it sacred, while whites saw it as a natural resource used to produce wealth. Indian cultures had no regard for preserving land and were ...

History
number 5 is Promontory, Utah. number 6 would be coal

History
number 5 Sacramento, California ?? number 6 gold?

History
i check one for number 2. theres starts at the end of questions too

History
check my answers??? 1. During Reconstruction, Southern agriculture thrived because it became more diverse and expanded with the diminishing demand for cotton and tobacco. * True* or False 2. Identify the factor which helped limit the economic recovery of the South following ...

math packet
Solve this equation for x. 0.5(5-7x) = 8-(4x+6)

algebra
Solve this equation for x. 0.5(5-7x) = 8-(4x+6)

Social Studies
do you have the answers to this

Social Studies ( Check my answer)
do you know the rest of the answers for this quiz?

maths
Thabo is 5years older than Amy,in 7years time Amy will be 3/4`s of thabo`s age. How old is Amy now?

Algebra
Sorry I messed up it was actually -7 divided by 14/3

Algebra
1. Find the quotient -7 divided by 14/13 A.-2/3 B.-98/3 C.-1/2 D.-3/2

Computer Science Principles
I need to know what's wrong with my code and it's supposed to be in the Next-Line blocking style. import java.util.Scanner; public class AreaOfCircle{public static void main(String[] args) { double PI = 3.14159;double get_this; double v; Scanner keyboard = new Scanner(...

Algebra
Thank you so much.

Algebra
An algebra teacher is writing a test. There will be two types of questions: multiple-choice and open-ended. The multiple-choice questions take 3 minutes to complete and the open-ended questions take 12 minutes to complete. There must be at least 3 open-ended questions, at ...

Math
If a 20 inch pully runs at 350rpms, what size does the second pully have to be to run at 3500rpms? I Don't remember the equation all I am looking for is the equation please

math
how does 3x(x-4)+5=12 = x=6+sq rt 57-3 or x=6-sq rt 57/3

math
What is the solution to the following equation? 3x(x-4)+5=12

math packet
how do I solve the following: 2x(x-3)+3=4

utu secondary school papuanew guinea
A given mass of air has a volume of 6.0l at 1 atom.what volume will it occupy at 190mm hg if the temperature does not change?

Math lit, geography, life sciences and agriculture
Hi i am still in matric and i don't know myb i cn be a chef under this subj...or an jenourlist

accounting
Greco Resort Adjusted Trial Balance August 31, 2007 Debit Credit Cash \$ 19,600 Accounts Receivable 800 Prepaid Insurance 3,375 Supplies 450 Land 20,000 Building 120,000 Accumulated Depreciation- Building 1,080 Equipment 16,000 Accumulated Depreciation—Equipment 360 ...

Physics
An object fired at an angle of 31.9° above the horizontal takes 2.55 s to travel the last 15.5 m of its vertical distance and the last 10.5 m of its horizontal distance. With what speed was the object launched? (Note: This problem does not stipulate that the initial and ...

Math
Check my math please... is the probability of three events with the following individual probs: 1/161x10/100x20/100=0.00012; and that is a 0.012% (1.2%) chance? Thanks

physics
Fall time under g is sqrt 2h/g. Can someone give a derivation from the equations of motion please? Thanks.

Physics
1) Planet Zero has a mass of 5.0*10^23 kg and a radius of 2.0*10^6 meters. What is the acceleration of gravity on planet zero? 2)Phobos, a satellite of Mars, has a radius of 11km and a mass of 10^16 kg. Its a bit lumpy, but let's assume its spherical to get a doable ...

Physics
1) Planet Zero has a mass of 5.0*10^23 kg and a radius of 2.0*10^6 meters. What is the acceleration of gravity on planet zero? 2)Phobos, a satellite of Mars, has a radius of 11km and a mass of 10^16 kg. Its a bit lumpy, but let's assume its spherical to get a doable ...

Physics
1) Determine the force of gravitational attraction between the earth(m=5.98*10^24kg) and a 70-kg physics student if the student is in an airplane at 4.950 meters above the earth's surface.

algebra
a grocery store has 116 bags of marshmallows. over 6 months, it sells 8 bags of marshmallows per month. how many marshmallows are in inventory at the end of 6 months?

algebra
How do you find the unit rate for ....861 bagels divided by 3 days

math
A street light is at the top of a 16.0 ft. tall pole. A man 5.9 ft tall walks away from the pole with a speed of 5.5 feet/sec along a straight path. How fast is the tip of his shadow moving when he is 47 feet from the pole?

math
Water is leaking out of an inverted conical tank at a rate of 6700 cubic centimeters per minute at the same time that water is being pumped into the tank at a constant rate. The tank has height 6 meters and the diameter at the top is 3.5 meters. If the water level is rising at...

CHEMISTRY
V1P1/T1 = V2P2/T2 Temp in Kelvin and assuming room temp of 25C(298K) 7.5×150/293 = V2x1/298 V2 = 1144L Remeber to round your answer to 2 sig figs: 1.0 x 10^3

can't figure it out
let f(x)=-5x+6 find and simplify f(x+2) f(x+2)=___

Physics
A father pulls his son, whose mass is 26.7 kg and who is sitting on a swing with ropes of length 3.27 m, backward until the ropes make an angle of 35.6° with respect to the vertical. He then releases his son from rest. What is the speed of the son at the bottom of the ...

Physics
A father pulls his son, whose mass is 26.7 kg and who is sitting on a swing with ropes of length 3.27 m, backward until the ropes make an angle of 35.6° with respect to the vertical. He then releases his son from rest. What is the speed of the son at the bottom of the ...

Physics
A 25.0-g metal cylinder is placed on a turntable, with its center 70 cm from the turntable's center. The coefficient of static friction between the cylinder and the turntable's surface is μs = 0.71. A thin, massless string of length 70 cm connects the center of ...

Physics

Physics

Physics
Calculate the dot product Ā·Ê(where Ê = Ē/E ~ is the unit vector in the direction of Ē ) and plot both Ā and Ê, showing how Ā·Ê is the projection of Ā on Ê. Ā= −4ˆi + 3ˆj Ē= 12...

math
what is the tenth term

math packet
11 nickles and 5 dimes

math
WOW! Thanks, I had trouble setting up the equation to solve. But it makes sense, like when solving an interest problem.

math
It is important for Bob to have a gross salary in his fifth year of at least \$100,000. He is promised salary increases of 3 percent per year in the second and third years and 5 percent thereafter. What must be his starting salary be to achieve his goal? My original answer was...

math
Thank you.That one had me stumped, but the way you explained it makes sense. 0.4%

math
In order for a spacecraft to reach Earth's orbital velocity, it must achieve a speed of 17,500 mph in 610 seconds after its first stage burnout where it should have achieved a speed of 1530 mph. What percent increase in speed per second is necessary after first stage in ...

math
Got it. 8 quarters, 17 dimes, and 35 nickels. Thanks for the equations, that was what I had trouble setting up.

math
There are 60 coins in a box containing only nickels, dimes, and quarters. If there is one more than twice as many dimes as quarters, and the total value of all dimes is five cents less than the total value of all nickels, how many of each denomination are in the box?

physics
Damon's post is correct.

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