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Total # Posts: 109,291

Math
A fence 3 feet tall runs parallel to a tall building at a distance of 3 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?

Maths
There were some people on the bus. At the first stop 19 people got off and 17 people got in. Now there are 63 people inside the bus. How many were there at the start? We have to find THREE ways I found Two : 1) 19-17 = 2 63 + 2 = 65 2). 63 - 17 = 46 46 + 19 = 65 I need help ...

geometry
A garden is in the shape of a rectangle 26 feet long and 35 feet wide. If the fencing costs $5 a foot, what will it cost to place fencing around the perimeter of the garden?

Maths
1^=1 2^=8 3^=27 4^=64 4/100 =1/25

Maths
By picking a natural number randomly up-to 100.find the probability of the number being a perfect cube?

math
a bus ride costs $1.50. A 30-day bus pass costs $36. Write an equation to represent the number of bus rides you would need to take for the bus pass to a better deal.

math
Given suitable examples of sets A,B,C,show that: A?B=A?C, B?C A?B=A?C, B?C

Algebra
The value of a boat is $21,200 It loses 6% of its value every year. Find the approximate monthly percent decrease in value. Round your answer to the nearest hundredth of a percent.

Math
A swimming pool holds 27460L of water. How long will it take to fill the pool at a rate of 50L/min?

algebra
14

math
You have the numbers 1- 10 in a bag.You draw a slip at random and draw another without replacing the first. Find the probability that both numbers are odd.

Math
2/5 of the 40 students in class are girls. 1/4 of the girls wear glasses. How many girls do not wear glasses?

Trig
what are the intercepts of the graph of f(x)=4cos^2 -3 on the interval [0, 2pi]?

Social Studies
I just rechecked and all the correct answers are C,D,A

Social Studies
Thank you very much Ms. Sue for responding :)!! Are the whole answers 1. A 2. D 3. A ?

Social Studies
Is 3. A and 1. B?

Social Studies
Hi I was just wondering if anyone could check my answers, Thank you!! 1. Unstable government holds back economic development most in a. Namibia b. Botswana c. Somalia d. South Africa*** 2. What was the effect of diversity in Dafur? a. NGOs b. Apartheid c. Nationalism d. ...

math
Geo uaually drinks 36 ounces of water per day. He read that he should drink 64 ounces of water per day. If he starts drinking 64 ounces, what is the percent increase? Round to the nearest percent.

Math
Find the equation of the ellipse having axes along the coordinate axes and passing through the points (4 ,3), (-1,4).

Math
Determine the value of a and b, so that the points (a , b, 3 ) , (2 ,0,-1), (1 , -1 ,3) are collinear.

science
A gas sample has a volume of 150ml when the pressure is 175kPa. If the temperature and amount of gas remains constant, what volume will the gas sample occupy at a pressure of 120 kPa

Physics/Mechanics
A particle A of mass 150g lies at rest on a smooth horizontal surface. A second particle B of mass 100g is projected along the surface with a speed of u m/s and collides directly with A. On collision the masses coalesce and moves on with a speed of 4 m.s . find the value of u ...

MATHEMATICS
at a farmers market you buy 4 lbs of tomatoes and 2 lbs. of sweet potatoes.

Chemistry
Calculate the wavelength, in nanometers, of the spectral line produced when an electron in a hydrogen atom undergoes the transition from the energy level n = 4 to the level n = 1.v

Physics
What is the direction of the displacement of a person who walks 10 km at 37 degrees south of east, then 14 km due west?

Math
6 outcomes

math
?_0^1??_1^2??(x^2+y^2)dxdy?using simpson's one third rule

Trigonometry
prove (sinx-tanx)^2=(tan^2x)(cosx-1)^2

math
One number is greater than another by 40/11. If the smaller number is less than 47/22 by 1/2, find the numbers.

Math
There was a sample of 550 milligrams of a radioactive substance to start a study. Since then, the sample has decayed by 5.2% each year. Let t be the number of years since the start of the study. Let y be the mass of the sample in milligrams. Write an exponential function ...

math
In a quadrilateral ABCD, AB || DC and AD||BC . Find the perimeter of ?COD if the diagonals of the quadrilateral intersect each other at pointOand AC = 20 in, BD = 20 in, AB = 13 in.

Math
One of the angles of a parallelogram is 36° greater then another one. Find the angles of the parallelogram.

chemistry
. What is the pH of a solution in which 15 mL of 0.10 M NaOH is added to 25 mL of 0.10 M HCl?

micro economics theory 2
a watch making firm operating in a competitive market.given by c= 100+ q2., where q is the level of output & c is total cost. a.the price of watches is birr is 60, how many watches produce to maximize profit? b.what will your profit level be? c.at what minimum price will you ...

iqra
. The equation for a demand curve has been estimated to be Q = 100 - 10P + 0.5Y, where Q is quantity, P is price, and Y is income. Assume P = 7 and Y = 50. a. Interpret the equation. b. At a price of 7, what is price elasticity? c. At an income level of 50, what is income ...

Chemistry
What mass of ammonia is necessary to produce 500 kJ of heat? 4 NH3(g) + 5 O2(g) ? 4 NO(g) + 6 H2O(g) ?rH = -906 kJ mol-1

Science
Mass of iron cube having edge length 1.8m is 70g.Find it's density.

Human resource
Why absolutely not?

Human resource
Suppose you are a staff nurse in a hospital that uses an incentive compensation system. Do you have an obligation to disclose the nature of the compensation arrangement to patients? if so, how should this information be communicating, and by whom?

Educational Technology
Of the following websites, the least trustworthy is the one that: A: Has the author's name and the current year as the date the site was posted. B: Has in-depth information and has a .gov URL. C: Has photographs and a copyright date of 1997. D: Has a company logo and the ...

chemistry
8/1=?1/8=8=1/8

chemistry
Under the same condition temperature and pressure hydrogen diffuses 8 times as fast as gas y calculate the rmm of gas y the rmm of h=2

Chemistry
O = 16 g/mol Mg = 24 g/mol so mass MgO/mass Mg = (24+16)/24 mass MgO = 24 (24+16)/24 = 40 grams

physics
(1/2) k x^2 = (1/2)(144)(.01) Joules

Algebra
Difference of two ninbers is 5 and difference of thier reciprocal is 1/10 find the numbers. Answer: X-Y=5 X=Y+5 1/X - 1/Y = 10 1/Y+5 - 1/Y =10 LCM ....

Math
7m long flagstaff is fixed on tower standing on horizontal plain . Frm a point on the ground angle of elevation of top and bottom of flag staff are 60 and 40 find height of tower

chemistry
Calculate the pH of a buffer solution prepared by mixing equal volumes of 0.20 M NaHCO3 and 0.10 M Na2CO3. (Ka = 4.3 x10-7)

Math - Trigonometry
When calculating the lengths for a square based pyramid, is there a way to calculate the length from a point to the point opposite of it, given the side length and height? Thanks in advanced.

Physics
A wire runs left to right and carries a current in the direction shown. What is the direction of the magnetic field at point Z?

Physics
A positive charge moving up enters a magnetic field pointing out of the screen. What is the direction of the magnetic force on the charge? up down right left

Physics
direction of the magnetic field?

Physics
What must be known to determine the direction of the magnetic force on a charge? the type of the charge the amount of the charge the direction of the magnetic field the velocity of the charge the strength of the magnetic field

Physics
Here are the choices: 0.01 T 0.05 T 0.1 T 0.2 T

Physics
that's not one of the choices

Physics
The magnetic field 0.02 m from a wire is 0.1 T. What is the magnitude of the magnetic field 0.01 m from the same wire?

Language Arts
Thank you!!

Language Arts
If I had to change my answer I would think 1 is C.

Language Arts
The Tide Rises, the Tide Falls by Henry Wadsworth Longfellow The tide rises, the tide falls, The twilight darkens, the curlew calls; Along the sea-sands damp and brown The traveller hastens toward the town, And the tide rises, the tide falls. Darkness settles on roofs and ...

Language Arts
Thank you!

Language Arts
1. Which of the following sentences has correct subject-verb agreement? A. A scarf or a hat keep you warm in the winter. B. Either Grandma or your brother pick your birthday gifts each year. C. Stacey and her sisters go to the beach every summer.** D. A dog or a cat are a good...

Language Arts
Thank you!!

Language Arts
1. what is the best way to correct the error in this sentence? Neither Tim nor Kristina go to the movies often A.delete the conjunction B.Change go to attend C.Change the verb to goes** D.Change neither to either 2. Which sentence below contains a dependant clause ? A. I know ...

Math - Trigonometry
A, B and C are three towns, the bearing of B and C from A being 295° and 205°, and their distances from A are 280km and 800km respectively. Find the bearing of C from B to the nearest minute.

Math - Trigonometry
Standing on top of a building 42 m high, an observer sights two objects at P and Q on opposite sides of the building. The angles of depression from the observer to P and Q are 23° 18' and 35° 33' respectively. What is the distance between P and Q to the nearest...

Math - Trigonometry
Ok, I know how to do this question, but I just don't get the apostrophe after 15. Supposedly, it means seconds but I don't know what that has to do with this.

Math - Trigonometry
The diagonal of a rectangle of width 3.8, makes an angle of 32° 15' with each of the longer sides. Find the length of the diagonal, and the length of the rectangle. Im not sure how to picture/draw the shape, which in term will tell me if it is cos, sin or tan. Also ...

Math
Same.

Math
area of a rectangle is length times width and 3/4 mile is width

physical science
2.0x10^19-protons is net electric charge since electrons are negative and protons are positive.Is the protons given also?

math
2/3=4/6 and 1/6=1 drop

math
in cooking 1 drop equal 1/6 of a dash. if a recipe calls for 2/3 of a dash, how many drops would that be.

Math
half of 4 is 2 and 4 1/2 is 2 1/4

Math
What is half of 4 and 4 1/2

English
dancing is an action verb not an adjective. Dance could be a noun or adjective depending what is used, so the first one is correct since its describing classes.

world history
how was the roman empire latinized? how did roman culture and politics spread?

Math
I have a rectangle with a semicircle on each end.the area of the rectangle is 5500 sqare meters. What is the perimeter of the track

economics
explain the role of moral considerations in policy selections

Math
I need some help on this function rule question please. 8.) Find the function rule. x: -2 -1 0 1 2 y: 9 4 -1 -6 -11 I'm having a really hard time figuring this out. Thanks to anyone that helps:)

LA
which line in the river poem contains a simile

Connections Academy
I'm here

Social studies
Did you ever get the answers?

Social studies
Did you ever get the answers?

Social studies
Please help someone:(

Chemistry
You dissolve 2.35 g of sodium carbonate (Na2CO3) in sufficient water to produce a final solution volume of 100.0 mL. Assuming all of the solid dissolves, calculate the solution pH.

Calculus
How do you use u-substitution with 20sin(x^2/35)?

Maths
A car travels 240 km in 2 hours. How long will it take to travel 600 km at the same speed?

Social studies
Lol twig is right THANK YOU SO MUCH

Physics
Given that charge of the electron is 1.6 x10^-19 C,What is the energy gained by the cathode ray particle when a voltage of 800 volts is applied between the electrodes of a cathode ray tube

physics
The answer is 22.3m for the maximum height.

maths
show that the radius of right circular cylinder of maximum volume that can be inacribed in a sphere of radius 18cm is 8?6

World History
OK..all this talkin and no one put what to write...bruhh..

probability
Paul is vacationing in Monte Carlo. On any given night, he takes X dollars to the casino and returns with Y dollars. The random variable X has the PDF shown in the figure. Conditional on X=x, the continuous random variable Y is uniformly distributed between zero and 2x. ...

algebra
George goes to the supermarket to buy some canned tomatoes to make salsa for a party. The cans are on sale for $0.95 each. He has $4.75. Let x represent the number of cans that he can buy. Write the equation that models this situation.

basic math
how to write forty five thousand three hundred twelve

math
Thank you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:))):):):)))))))):):):):):):):):):):):D:D:D:D:D:D:D:D:D:D:D:D:D I seriously just guessed!

math
not sure. All I got was a line with 42 ft with a dot in the middle

math
find the circumference of the circle round to the nearest foot. it is 42 ft I got a but I'm not sure. A.132ft B.264ft C.1,320FT D.2,640FT

Science
How are the primary pigments related to the primary colors? The primary pigments are: A. Complementary to the primary colors B. Associated with the primary colors C. Unrelated to the primary colors Is the answer A?

Math
If the scale had been 2/3 inch: 4 feet , how many inches longer would the scale drawing of Quinta's bedroom have been?

AP Physics
A block and a spool have the same mass, and are each pulled across a level, frictionless surface by a string, as shown to the right. The string pulling the spool is wrapped around it many times, and the other string is fastened to the center of the block. Both hands pull with ...

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