Posts by Britt

Total # Posts: 181

statistics
suppose that 52percent of us sleep between 7 and 8 hours a day .find the decimal for 51 percent

pysics
a school bus takes 0.530 h to reach the school from your house. if the average velocity of the bus is 19.0 km/h to the east, what is the displacement?

physical science
8.92

algebra
(-1, 2) (7, 6) (-3, 2) (5, 5)

algebra
Select the ordered pair from the choices below that is a solution to the following system of equations: 4y = 2x + 10 8x - 3y = -14

Trigonometry
I am trying to help my child out with a problem but yeah I am finding it veyr hard. Gabe is spending two weeks on an archaeological dig. He finds a fragment of a circular plate that his leader thinks may be valuable. The arc length of the fragment is about 1/6 the ...

Finance
A CBS bond with a par value of \$1,000, an interest rate of 7.625 percent, and a maturity of 10 years The bond is selling for \$986. The required rates of return is 6 percent for the bond.

PHYSICS!
A 0.15 kg ball of dough is thrown straight up into the air with an initial velocity of 13 m/s. (a) Find the momentum of the of dough at its maximum height. kg·m/s upward (b) Find the momentum of the ball of dough halfway to its maximum height on the way up. kg·m/...

physics
A 1.88-m long rope has a mass of 0.139 kg. The tension is 55.4 N. An oscillator at one end sends a harmonic wave with an amplitude of 1.09 cm down the rope. The other end of the rope is terminated so all of the energy of the wave is absorbed and none is reflected. What is the ...

math
for two consecutive numbers, the sum of the smaller number plus twice the lage number is 38. what are the numbers?

statistics
MacDonald’s executives want to experiment with redesigning its restaurants so that the customers form one line leading to four registers, rather than four lines leading to four separate registers. They redesign 30 randomly selected restaurants with the single line. In ...

Chem
A 2.00L flask is filled with propane gas(C3H8)at 1.00atm and 15C. What is the mass of propane in the flask?

MATH
Which division sentence will give an answer that is not in equal groups? a.) 26/4 b.) 35/7 c.) 42/6 d.) 45/5

language
what sentence could you use please in an appaositive sentence

MATH
Coin box Question: Assume that there are 25 pennies, 10 nickels, 10 dimes, and 5 quarters in a box. after shuffeling the box, you pick a coin at random and note down its face value. let x represent the face value of the coin in cents. then construct the probability ...

Statistics
Coin box Question: Assume that there are 25 pennies, 10 nickels, 10 dimes, and 5 quarters in a box. after shuffeling the box, you pick a coin at random and note down its face value. let x represent the face value of the coin in cents. then construct the probability ...

Stat
Coin box Question: Assume that there are 25 pennies, 10 nickels, 10 dimes, and 5 quarters in a box. after shuffeling the box, you pick a coin at random and note down its face value. let x represent the face value of the coin in cents. then construct the probability ...

physics
The distance from an observer on the plain to the top of a nearby mountain is 5.3km, and the angle between this line and the horizontal is 8.4 degrees. How tall is the mountain?

Algebra
You're right, it is 2x^2.

Algebra
69: 16x^2+8x-3. I inserted this into the quadratic formula and got -8+/- the square root of (8^2-4(16)(-3)/(2 times 16). This reduced to -8+/- the square root of (64+120)/32, which further reduced to -8+/-the square root of 184/32. I reduced the top part to -8 +/- the square ...

math
identifying domain and range

Physics
A fire helicopter carries a 679 kg bucket of water at the end of a 15.2 m long cable. Flying back from a fire at a constant speed of 42.5 m/s, the cable makes an angle of 49.0o with respect to the vertical. Determine the force of air resistance on the bucket.

Physics
Your groceries are in a bag with paper handles. The handles will tear off if a force greater than 50.8 N is applied to them. What is the greatest mass of groceries that can be lifted safely with this bag, given that the bag is raised with constant speed.

Chem
You've just prepared a solution by transferring 20.0 g of glucose into a 1.0 - L volumetric flask, and adding water to the mark. Calculate the concentration of the glucose solution in terms of millimoles/Liter, mg/mL, and % (m/v). Ok, I think i'm overwhelmed by the ...

Chem
You've just prepared a solution by transferring 20.0 g of glucose into a 1.0 - L volumetric flask, and adding water to the mark. Calculate the concentration of the glucose solution in terms of millimoles/Liter, mg/mL, and % (m/v).

math
I need help with finding function that appears in newspaper, and what is the domain and range of each. My question is what i'm i suppose to look for in the newspaper a article?

Sci.
if you're trying to extract a metal from its ore, would you use reduction, oxidation, melting or casting? Thanks for your help.

Math
how do you solve this I keep trying and I keep getting the wrong answer. I keep getting x=19000 and that is not correct .10=.9(x/15000)+.14[(1-x)/15000]

Algebra
what if I change the 1-x to a y? how do you solve for 2 variables?

Algebra
how do i solve this? .10=.9(x/15000)+.14(1-x/15000)

Basic Algebra
How do I solve for .10=.9x + .14(1-x) I keep getting x/(1-x) and I don;t know how to do that. Any help would be appreciated

Algebra
How do I solve for .10=.9x + .14(1-x) I keep getting x/(1-x) and I don;t know how to do that. Any help would be appreciated

maths
2 3/4

Microbiology
What kind of prokaryotes have been discovered, which can grow as large as 70 milimeters in diameter and can be without the aid of a microscope (Hint: It's in the ocean)?

algebra
write the slope of a line parallel to the given line y=8-3x

Statistics
Does the t distribution have a mean of zero, or is it a continuous distribution?

english 3 honors

english
because the person you record could be hiding from some one in the witness protection plan and they could be found. thats just the first idea that came to mind.

punctuation
The question we need to ask ourselves is (comma) (no punctuation ) "Do we really want to move ahead? (quotation mark only)(quotation mark followed by a period )

english
what is the moodd which the author creates in the upturned face

chemistry
i have the same ? ughhh did you get any of the problem yet.

Chemistry
In a certain experiment a sample of Helium in a vacuum system was compressed at 25 degrees C from a volume of 200.0 mL to a volume of 0.240 mL where its pressure was found to be 30.0 mm Hg. What was the orginal pressure of the Helium?

Economics
I have to draw some Supply/demand curves and I want to know if they are right Personal computers: more user-friendly software become available and the costs of inputs are reduced. Supply moves to the right, demand moves to the left, quantity goes up and so does price Hospital ...

Graphs
The Frivoli can produce either 30 pounds of spaghetti and no meatballs or 50 pounds of meatballs and no spaghetti or any combination in between. The Frivoli can produce 40 pounds of spaghetti and no meatballs or 30 pounds of meatballs and no spaghetti. Assuming all production ...

Economics
How does increasing or decreasing the quantity of capital goods produced this period affect next period's production possibilities curve and why? The only thing I can think of is that if more products are produced this period, less can be produced next period because their...

Economics
How does increasing or decreasing the quantity of capital goods produced this period affect next period's production possibilities curve and why? The only thing I can think of is that if more products are produced this period, less can be produced next period because their...

Significant Figures
so this is right, each number can only have two digits for f. should it be 10 or 10.

Significant Figures
Report the following to two significant figures a. 3.1459 b. 6.003 c. 42 d. 6.0233 x 10^23 e. 14.456 + 3.87 f. 9.9999995 - 0.0108 g. 67.3 x 6.667 h. 4.93 / 3.946 Can someone please check my answers a. 3.1 b. 6.0 c. 42 d. 6.0 x 10^23 e. 18 f. 10. g. 4.5 x 10^2 h. 1.2

Significant Figures
these are my answers could someone check them for me

Significant Figures
okay a. 3.1 b. 6.0 c. 42 d. 6.0 x 10^23 e. 18 f. 10. g. 4.5 x 10^2 h. 1.2

Significant Figures
Report the following to two significant figures a. 3.1459 b. 6.003 c. 42 d. 6.0233 x 10^23 e. 14.456 + 3.87 f. 9.9999995 - 0.0108 g. 67.3 x 6.667 h. 4.93 / 3.946

Rounding
Round to two decimal places a. 3.1459 b. 6.003 c. 42 d. 6.0233 x 10^23 e. 14.456 + 3.87 f. 9.9999995 - 0.0108 g. 67.3 x 6.667 h. 4.93 / 3.946 check my answers please a. 3.15 b. 6.00 c. 42 d. 6.02 x 10^23 e. 18.33 f. 9.99 g. 448.69 h. 1.25

s.s
do u know any good websites for kids that have a step by step instructions on how to make something...in greek art...that sounds realy confusing srry but try to understand

Calc
For f(x,y)=x^2+y^2-xy+6y, determine the values for x and y such that fx(x,y)=0 and fy(x,y)=0 simultaneously.

Calc
Classify all critical points of the function f(x,y)=x^2-y^2+4x-2y+1. I know I have to take the partial derivative and set them equal to zero to get my points and then use the Hessian. For some reason I am not getting the correct answer. partial d/dx 2x+4 and partial d/dy 2y-2 ...

Calc
Ralph is taking his final exam. After t minutes into the exam Ralph has correctly solved P(t)=-.001t^3+.078t^2+.16t problems. a) at what time was Ralph solving problems most efficiently? b) at what time did Ralph's efficiency decline?

Calc
No i need help understanding the algebra behind solving 2x+4/x=6

Calc
I understand what you are saying but how do you do the algebra foe 6=2x+4/x I seem to have forgotten my algebra.

Calc
how do I do this?

Calc
Find the equation of a tangent line of a graph pf y=x^2+4lnx, which is parallel to y=6x-3? I know parallel lines have the same slope so the slope is 6 but I do not know how to find the b value.

Calc
How do you take the derivative of 9000/(1+.3t+.1t^2)?

Calculus
I mean how you got it? Your explanation is very confusing

Calculus
Well can you make it easier to understand how you got it?

Calculus
I do not want the limit i just need the derivative so I can set it equal to 15

Calculus
What is the derivative of t^3/3

Calculus
solve the equation for y in terms of x. Can somebody walk me through this?

Calculus
How do you factor the (x-2) opt, I do not understand the steps to do this?

Calculus
Given the function f(x) = (x-2)/(x^3-8), what value should be assigned to f(x) to make the function continuous at x=2? Please walk me through this. I have the answer but do not know how to get it.

CALC
What are local extrema?

Calc
How do you factor -2x^2+60x-120. I got -2(x^2-30x+60) but I need to factor it further.

Cal
Find the equation of the line containing (7,11) and parallel to y=6. Find the equation of the line having x-intercept of 5 and y-intercept of -5. I know that y=mx+b, b=y-mx, and parallel lines have the same slope

Calculus
Find the derivative. Simplify as much as possible. s(x)=(9-12x)/[(x/3)-(1/4)] Can someone explain this to me

Calculus
Minimize S=x+2y with xy=2 and both x and y > 0. Can somebody explain to me in words and numbers how to do this problem.

Calculus
Minimize S=x+2y with xy=2 and both x and y > 0

Calculus
Find the limit. Use L'Hopitals Rule if necessary. lim (x^2+3x+2)/(x^2+x) x -> 0

Calculus
Find the derivative. Simplify as much as possible. s(x)=(9-12x)/[(x/3)-(1/4)]

history
What motivated King Leopold of Belgium to seek ownership of the Congo region? Check this site. http://en.wikipedia.org/wiki/L%C3%A9opold_II_of_Belgium

Algebra
Can you explain to me how to solve this equation? 2/3x-9=1/3 1/3=.33 and 2/3=.66 now the problem is 0.66x-9=0.33 When I did this in math, I had trouble, but now I understand it. Since 0.33 is on the other side of the = then 9, you would do 0.33+9=9.33 In other words, you do ...

psychology
Anyone have the personal manifesto paper criteria? Paper is due on Wed. Thanx Since a manifesto is not my area of expertise, I searched Google under the key words "writing personal manifesto" to get this source: (Broken Link Removed) I hope this helps. Thanks for ...

speed of rocket
how fast does a rocket need to go to break earth's gravitationl pull The final rocket velocity required to maintain a circular orbit around the Earth may be computed from the following: Vc = sqrt(µ/r) where Vc is the circular orbital velocity in feet per second, &...

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