# Posts by James

Total # Posts: 2,491

MATH HELP !!!!!
I know a fraction is the answer but can't make it work for the probability question asking for what is the chance you will pull a pink eraser out of a,container that has 5 green .2 striped.4 pink.and 3 white.?

Math
anybody got the answers to this test

Math

Math

Math
Square is 20 feet wide and 21 feet long what is the disdence from one corner to the other

Science
Thanks lilly

physics
Three point charge of 2NC 7NC and - 4NC are located at the corners of an equilateral triangl as shown below. Caculate the magnitude and direction of the net force on the 7uc charge.

physics
Three point charge of 2NC 7NC and - 4NC are located at the corners of an equilateral triangl as shown below. Caculate the magnitude and direction of the net force on the 7uc charge.

algebra
a student measures the height of a sign to be 2 meters. the shadow of the sign 3 meters. the student notices that at the same time nearby tree has a shadow of 15.6 meters. how tall is the tree? What equation would be used for this?

Chemistry
Calculate the ph of a solution that is 0.157m HCI?

LA
Anonymous is right thanks

Math
Two telephone poles are 60ft. apart, and one of them is 6ft. higher than the other. If the length of the wire between the poles is 61.3 ft., how much wire was allowed for sag?.

Life orientation
zuma's career! I hope this helped you on you're homework!

Math
To do this, you have to factor the radicand (or the number inside the radical sign) and look for perfect squares. For instance, 2 * √(48) 2 * √(16*3) 2 * √(4*4*3) Express the repeating factors using exponents, so it's easier to see. Since four is ...

Life Orientation
The 'disappearances' of detainees in the custody of Russian federal forces in Chechnya is a major human rights crisis that the Russian government and the international community must address." "While combat between federal forces and Chechen rebels has for ...

I hope this helps! √≈1.7320508075688772

ELA
Maybe, don't frown mr brown

ELA
My little brown trout

L.o

math
Create sketches by hand of the following sine functions, showing at least one full period and state the domain and range. Submit them to your teacher using the drop box above. It may be easiest for you to scan your hand drawn sketches and submit the scan file. Part A: ...

statistics
the marks of 100 students in an examination are normally distributed with mean of 25 marks and a standard deviation of 10 marks. Given that the pass mark is 20, estimate the number of students who passed the examination.

PROB
What is minimum sample needed if you know the SD is 22.36 and an accuracy of 3.06 and you want a confidence level of 90%

Math, NEEDS HELP EMEDIETLY!
the sample size is 144

algebra
Never mind. I figured this one out on my own!

algebra
16oz of nails is to be made of a combination of nails one that costs four dollars per oz and another that costs eight dollars per oz. How many oz of each kind of nails would you need to equal 16oz of a mixture of nails that costs seven dollars per pound? What formula would I ...

Calculus
Equation: Suppose that the demand of a certain item is x = -0.7 p + 20. Evaluate the elasticity at E = 8. I'm not sure what steps to take to solve this. I know that elasticity is equal to the absolute value of [(p/q) x (dp/dq)]

MATH

math
ms sue how is it 16 ??

Physics
An electron is held 2.10 cm from an vertically aligned infinite charged plane and then released from rest. It accelerates toward the plane to the left and collides with a speed of 1.50×107 m/s .

VISUAL BASIC PROGRAMMING
3. WRITE A VISUAL BASIC PROGRAM TO CALCULATE THE SIMPLE INTEREST ON A LOAN AMONUT OF 50000 GHANA CEDIS AT AN INTEREST RATE OF 30% FOR A NUMBER OF YEARS WHICH WILL BE SPECIFIED BY THE USER.

Math
B because 4/52 is about 0.76

The Principal of SACRO Primary is concerned that the average speed of cars travelling along Princess Road exceeds the recommended speed of 60km/h. A random sample of 10 cars had their speeds measured by radar and the results (in km/h) are as follows: 81, 53, 62, 79, 52, 68, 61...

physics
By looking at the sinusoidal wave graphed out, the period is T=1.0s. Which means in one second the d will be the same as the beginning. So we know that d0=2.0cm so d4 at 1.0s = d0 or 2cm. Then we know that half of that period would be the negative of the intial or d2 at .5s= -...

us history
I think it is B because the Declaration of Sentiments was published during the convention.

us history
I agree with B because it says best and all the other choices only described part of her career.

us history
Hello Think of what the word conversion means. It doesn't have to do with land areas or just one religion, it could be another beside Christianity, but Christianity was the main one. So now, what do you think?

physics
A laser beam passes from air into a 25% glucose solution at an incident angle of 37 ∘ . In what direction does light travel in the glucose solution? Assume the index of refraction of air is n = 1.

math
Alex is right- it is 9- look at his answer!! Guess it shows how sometimes kids are smarter than grown-ups!

Science: Physics
mr. slott at his fighting weight of 1000N jumps down from a platform meters above a trampoline with a spring constant (k) of 500N/M. How much does Mr.Slott strech the trampoline (x) before it brings him to a stop

Math
25% of 20% = 8 so, 5% =8 10% = 16. 16 x 10 = 160

Social Studies HELP
2. Which was a part of the Populist Party’s platform? (1 point) tax breaks for farmers*** civil rights for all Americans higher tariffs on foreign goods increased industrial development 3. Whom did Rebecca Latimer Felton replace when she was appointed a senator in the ...

math111
in a science class,65 student study physics while 40 study chemistry.if there are 93 student in the class,how many student study both physics and chemistry?

physics
Three sheets of plastic have unknown indices of refraction. Sheet 1 is placed on top of sheet 2, and a laser beam is directed onto the sheets from above. The laser beam enters sheet 1 and then strikes the interface between sheet 1 and sheet 2 at an angle of 19.8° with the ...

math
A 100​-cm board is cut into two pieces. If one piece is 30 cm shorter than the​ other, how long are the two​ pieces?

chemistry
Calculate the change in pH when 9.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). Calculate the change in pH when 9.00 mL of 0.100 M NaOH(aq) is added to the original buffer solution.

Social Studies
2. The new boundary line set by the Adams-Onis Treaty had which of these effects? A.) It created a system of dual governance in Florida. B.) It represented the completion of Manifest Destiny.**** C.) It began the decline of Spain's New World empire. D.) It allowed the ...

Math. Pls. Help!
What do you think it is?

Law
Which of the following constitutional provisions place(s) restrictions on identification procedures?

Science
You are correct.

algebra
What do you mean?

algebra
Does the table represent an exponential function? x | 1 | 2 | 3 | 4 y | -2 | -12 | -72 | -432

identity theft
B. If you throw away paperwork with personal information on it without shredding it, you risk someone finding it.

Mathematics
The gradient of a curve is defined by dy/dx = 3x^(1/2) - 6 Given the point (9, 2) lies on the curve, find the equation of the curve

Maths
The gradient of a curve is defined by dy/dx = 3x^(1/2) - 6 Given the point (9, 2) lies on the curve, find the equation of the curve

geomentry
find the area of each circle to the nearest tenth with diameter of 8ft.

math
My sister is 9 1/2 years old my brother is 4 3/4 years younger than my sister how old is my brother show me how to get the answer

Physics
You are on vacation in San Francisco and decide to take a cable car to see the city. A 5500 kg cable car goes 360 m up a hill inclined 19 ∘ above the horizontal. What can your learn about the work done by the cable to move car up the hill? Answer quantitatively. Ignore ...

Please check Ms. Sue on math!
you have to do 7*4 and get 28 so yes u are correct

Please check Ms. Sue on math!

Is 20 D instead? Sorry for wasting your time this is my last question on my homework and i'm stuck. This was actually make up work i was out for 3 days

18. Which action during westward expansion had the most negative impact on the lives of slaves? A.) The Fugitive Slave Act**** B.) The Mexican-American War C.) The Treaty of Washinton D.) The Missouri Compromise 19. Which answer best describes why towns and cities were built ...

15. C 16. D 17. A If not then I give up and im just going to guess

Chemistry
A chemist needs a 50% of sulfuric acid. She mix 2 liters of 20% of sulfuric acid with a sample of 60% of sulfuric acid. Write a equatoin that models the situation and use it to find how much the 50% of the sulfuric acid she needs to use?

Mathematics
How do you find the coordinates of the stationary points to this implicit differentiation equation? x^2y = y^2 + 2x 2xy + x^2yy' = 2yy' + 2 y'(x^2y-2y) = 2-2xy y' = 2(1-xy) ------------- y(x^2-2)

Mathematics
x^2(y) = y^2 + 2x What is dy/dx and the coordinates of the stationary points

Mathematics
The equation of a circle is given by D: x^2 + y^2 - 2x - 4y - 20 = 0 Use implicit differentiation to find the equation of the normal D at the point S(5, -1)

math. metric system
To convert from a smaller unit to a larger unit you divide or multiply or add by 10 ?

chemistry
Write the chemical equation that oxidize oxalic acid to carbon dioxide and water

Math
The planning committee for the upcoming school play “Miss-terious” at LMSA asked the mathematics classes to give them some estimates about income that could be expected at different ticket price levels. The class did some market research to see what students would be...

Language
X random X is correct for language arts 7 B unit 2 lesson 13

Math
if f be a function such that d/dx[x^2+1)f(x)]=2xf(x)+3x^4+3x^2 what is f(x)?

Math
/x^2-6x/=9

Math
How many solutions are there to the equation |x^2-6x|=9?

related rates word problems
"A man of height 2.2 meters walk away from a 5-meter lamppost at a speed of 1.2 m/s. Find the rate at which his shadow is increasing in length. " what is the answer to this? if anyone can help that would be great

math
billy is good

chem
Carbon dioxide gas has a Henry's law constant of 4.48×10-5 M/mmHg at 25.0 °C when dissolving in water. If the total pressure of gas (CO2 gas plus water vapor) over water is 1.00 atm, what is the concentration of CO2 in the water in grams per milliliter? Pressure ...

Physics
Two speakers, one directly behind the other, are each generating a 264-Hz sound wave. What is the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them? Take the speed of sound to be 342 m/s.

educational and tecnology
Word boy is right

Chem
A solution is prepared by adding 1.50 mol glucose to 3.50 mol water. What is the vapor pressure of the solution at 25 oC given that the vapor pressure of pure water is 23.8 torr?

math
20 kids Are in a group . 7 of them have pets. How do u figure what percent of the group has pets? I multiplied 7 X 20 and got 14 percent. Is that the right way to figure percent if u have a total and don't have to use 100 as the total?

physics
an object takes 0.35 seconds to hit the floor, what height did it fall from? is the way to calculate it h = gt^2 / 2 so would it be = h = .5 * 9.8 * 0.35^2

Pre-Calculus
The question is "Find parametric equations for the line with the given properties: Slope -2, passing through (-10, -20)." I don't even know where to begin, or what to do. Please help! This is an example problem, not the main homework problem, I just need to know ...

English
A A C 100%

f maths
Dddddddd

Science
which ones are right ??

math
A rectangular picture frame measures 46 cm by 35 cm. What is the perimeter or distance around the picture frame in meters? m

Math
How much 12% acid must be added to 3 gallons of pure water to get a mixture that is 7% acid.

Language
1. c 2. d 3. a 4. c these are all the answers i got 5/5 3 is your question and a is your answer

Number Systems of Mathematics
Solve using elimination and express answer as ordered pair: 2x + 3y = 7 x + 5y = 7

Physics
Where did the 4.9 come from??

Physics
Two resistors 3 Ω and 6 Ω are connected in parallel across a 6 V battery. What is the current flow through the 3 Ω resistor? 6 A 3 A 4 A 2 A

Human Behavior
Existential psychology has four basic themes. Define the themes. How are those themes different from humanistic theory themes of positive psychology and suffering of existentialism?

math
What doea,the c mean when the math problem is 8c = how many pints? I tried 1 2 4 and 16 but don't know what to look for.

PHYSICS
A golfer rides in a golf cart at an average speed of 3.93 m/s for 43.3 s. She then gets out of the cart and starts walking at an average speed of 1.13 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 1.99 m/s?

PHYSICS
A box is sliding up an incline that makes an angle of 21.8° with respect to the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.170. The initial speed of the box at the bottom of the incline is 3.48 m/s. How far does the ...

algebra
thank you guys so so much! I was trying to use elimination for this and it wasn't working at all.

algebra
What is the solution of the system? y = -3x 3x + 2y =6 I don't get this, please help.

Inequalities - Algebra
Ms. Sue I have a question, is 123 a possible answer for the # of text messages you can give/receive?

Inequalities - Algebra
Thank u Ms. Sue

Inequalities - Algebra
Your cellphone plan costs \$42.76 per month plus \$0.14 for each text message you send or receive. You have at most \$60 to spend on your phone bill. What is the maximum number of text messages you can send or receive next month?

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