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Posts by James

Total # Posts: 2,462

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
whats the answer

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

Business Math
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!
your right

Someone Please Check My Answers?!?!?
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

Someone Please Check My Answers?!?!?
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 ...

Ms. Sue Please Check My Answers!
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
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?

math
First, you need to find the least common multiple, which is 12. Then you need to count on 12 school days from September 5th. So say that the 5th is on a Monday, so the next day would be the 6th, then Tuesday would be the 7th, and so forth.So keep counting. So the next time she...

Physics
A 56.5kg, 2.4m uniform ladder leans against a frictionless wall. A 95.5kg person is standing up 0.8m from the bottom of the ladder. The ladder makes an angle of 57 degrees with the horizontal. The coefficient of static friction between th eladder and the ground is 0.15. What ...

Algebra 1
I actually think it's c.

math
To find the area of a parallelogram you use the equation a=bh. You already know that the height is 4.5cm, which plugged in to the equation makes the equation a=b*4.5. The base is twice the height, and knowing that the height is 4.5cm, you just multiply that by two in order to ...

science
Tow masses are moving down a slope. One mass is traveling twice as fast as the other mass. How does the kinetic energy of one mass compare to the other?

Mathematics
Solve for X: (x-6)log4=(3x)log2

Mathematics
Solve: 4^(x-6)=2^(3x) show all workings.

Mathematics
Solve: 3^(2x+1)=12 Show your workings:

Advanced algebra
Find the 7th term of geometric progression if the second term is 75, the 5th term,3/5.

Mathematics
Solve: 3^x=7 3^2x+1=12 4^x-6=2^3x

math
How to figure out 22×11 in expanded algorithm

Physics
A projectile is fired from a height of h meters at a speed of 55m/s and at an angle of 10 degrees above the horizontal. The projectile hits a target at a horizontal distance of 80m from where it was fired and at a vertical height of 1.2m. Find the time for which the projectile...

Comptuer Scinec
Need help with my final project. Create and test a java program that will simulate customers waiting in line in a bank teller

Math
for 1 which is right?

Math
Leonard ran 4 miles more than Sheldon ran. The sum of their distances is 26 miles. How far did Sheldon run? The domain a. Define your variable. b. Write algebraic expressions for the distances each person ran. c. Write an equation that can help you solve the problem. d. Solve ...

Sign Language
A B C D A B A B

math plz help!!!!!!!
A D B

math
what point of f(x)= e^(1-x^2) is concave down? I think it is -3/2

Mathematics
Can you get an extremely high gradient of a straight line for instance: m = 14375 I used the formula (y2-y1)/(x2-x1) or have I miscalculated?

science
I have researched for an hr. Can someone help me find what energy transformation takes place when a firecraxker explodes? The choices given to me are : a. Gravitational potential to mechanical and electromagnetic. B:NUCLEAR to kinetic and,chemical. C: mechanical to ...

math
Solve the following system by matrix reduction. Write your answer using parameter(s) if necessary. If there is no solution, state "no solution". x-2y-3z=-2 4x-3y+3z=-8

math
Solve the following system by matrix reduction. Write your answer using parameter(s) if necessary. If there is no solution, state "no solution". x-2y-3z=-2 4x-3y+3z=-8

Math
If log 3=a, log 5=b and log 7=c, express log_{15} 7 in terms of a,b and c.

Physics
The circular blade on a radial arm saw is turning at 293 rad/s at the instant the motor is turned off. In 17.9 s, the speed of the blade is reduced to 60 rad/s. Assume the blade to be a uniform solid disk of radius 0.17 m and mass 0.400 kg. Find the magnitude of the net torque...

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