# Posts by Sophia

Total # Posts: 266

math
how did you get b= 28000

math
The value of a car decreases at a constant rate as it grows older. When the car is 2 years old, it is worth \$23,000. When the car is 5 years old it is worth \$15,500. Write and equation relating y (value of the car \$) to x (age of car). Is it y-23,000=-2500(2)-5 ??

matt ran 1/5 mile less on monday than on tuesday. he ran 1/2 mile less on wednesday than he did on monday. he ran 7/10 mile more on friday than on wednesday. if matt ran 4/5 mile on friday, how far did he run on tuesday? stumped, please help!

math
What are the slope and y-intercept of the graph of the following equation? 1/3x=1/2(y+4) So I used slope intercept formula and rearranged it to be 1/2y=-1/3x+2 then I isolated y by multiplying by the reciprocal and got y=-2/3x+4 is that right?? My friend said its +4!

I don't know too BYE BYE BYE BYE BYE 2009 PERSON BYE BYE

math
so murder perentage is .94% and 3.4 degree of the circle. So when doing the pie graph I put the percentage on the pie graph?

math
alcohol 13% Car Acc. 19% suicides 25% Tobacco 300% Are these right?

math
is this correct for murders? (510/54120)*360=3.4

math
I have to put these estimates on a circle graph. These are estimated deaths in canada in 1996. Do I add them all up first then divide them by the answer? murders 510 alchcol 1900 car accidents 2900 suicides-3900 Tobacco 45,000

statistics
A Survey.

World History
List two ways the Atlantic Slave trade affected Africa.

social studies
how do you calculate for the local time in Cairo, Beijing, Sydney, Washington DC, thailand, los angeles, new delhi,vancouver and moscow if the data given is London(GMT) 5:00pm monday.

music
what is meter in music and what are the kinds of meter?

Biology
Good afternoon, Could you help me find environmental factors that would influence biodiversity. Thanks for your time.

To Sophia
I apologize, i only posted my question once. I think something was wrong with my computer. No, i did not do this before, this is the first time i've used this site. Sophia.

Biology
Hi, Could you help me find information on at least 5 organizations or efforts on how humans are trying to combat the loss of biodiversity. Thanks.

i got 100 % in maths

How does a solar greenhouse work?

Science
What is a solar greenhouse?

A television repair man is somebody who... Gets The Picture A taxidermist is somebody who... Can save your hide A tree surgeon is somebody who... Will go out on a limb I hop this helped you! :)

Career Information
Stuck on career information...

physics
The time is 14.3s, btw..

physics
An airplane traveling 1001 m above the ocean at 125km/h is going to drop a box of supplies to shipwrecked victims below. What is the horizontal distance between the plane and the victims when the box is dropped?

physics
A pitched ball is hit by a batter at a 45-degree angle and just clears the outfield fence, 98 m away. If the fence is at the same height as the pitch, find the velocity of the ball when it left the bat. Ignore air resistance.

they got freedom

Biases may play a major role in the success/failure of an IT project because most IT projects are connected in someway with making the technology more user friendly. The users of these projects are becoming more diverse in reference to age, race, sexual orientation, etc. ...

Algebra

Algebra
Can someone please tell me what the domain of the following equation is? Please explain how you got that answer. g(x)=5^x

English
Yes. It is the same statement.

science
Both of these thermometers were designed to rise and fall as they expand or contract with changes in temperature. One major difference is that alcohol thermometers will only rise when on site with the temperature to be read, where as a mercury thermometer needs to be shaken if...

Algebra

AP Chem
How did you get #34?

Math riddle PIZZAZZ Worksheet
What happened to the grocer who stacked all of the liquid detergent no the high shelf? plzzz help

Spelling
dog cat

how do you write an equation for the number of gallons in 128 fluid ounces?

Algebra
and if the problem had been: 21a-3 ------ 7a-6 then it would be: 3a-1 ----- a-2

physics
An ideal gas at 18.5°C and a pressure of 1.54 105 Pa occupies a volume of 2.10 m3. (a) How many moles of gas are present? moles (b) If the volume is raised to 5.30 m3 and the temperature raised to 31.0°C, what will be the pressure of the gas? Pa

physics
A mass of 135 g of an element is known to contain 30.1 1023 atoms. What is the element? hydrogen oxyden aluminum carbon Is it aluminum?

SCIENCE
PISTILS AND STAMENS REACH MATURITY AT DIFFERENT TIMES, WHY WOULD THIS BE AN ADVANTAGE TO THE PLANT?

us history
when fdr served 4 terms, which president's record did he break?

Math
4x + 10 -3x =2-3

Chemistry
The solubility of CaCO3 at 25 degrees celsius is 6.90*10-5M. The reaction is CaCO3(s)-->Ca 2+(aq) + CO3 2-(aq) <-- a. Calculate the concentration of Ca +2 and CO3 -2 at equilibrium. b. Calculate the equilibrium constant for the dissolution reaction. (also known as the ...

college math
how to do set notation, for example

social studies
How did Alexander the Great unite Persian and greek cultures and why?

statistics
oops

statistics
Given the ensuing well drilling data, answer the following. [Reference: #4.78, page 172] • .30 (30%) probability of a productive well absent test information • Pre-drilling ballistics test ‘s affirmative result correctly predicts a productive well .70 of the ...

statistics
Given a distribution with mean X and standard deviation S, answer the following. 4.1 Determine the mean and standard deviation if constant K is added to each observation 4.2 Determine the mean and standard deviation if constant K is multiplied by each observation 4.3 Assuming ...

statistics
oops, thank you drwls

statistics
Given the ensuing well drilling data, answer the following. • .30 (30%) probability of a productive well absent test information • Pre-drilling ballistics test ‘s affirmative result correctly predicts a productive well .70 of the time • Pre-drilling ...

statistics
Compute the expected return if two mega lottery tickets are sold for \$6, if the winning ticket is drawn from five (5) million tickets sold, and if the winner receives \$10 million.

statistics
3. Prove (not show) that following two methods, long and short respectively, to compute the population variance yield the same result. ? (x i - ?) 2 / n, where i = 1, n ? (x i 2 - (? x i) 2) / n, where i = 1, n

algebra
a times a number - 5 = b so, add 5 to both sides ax-5 = b +5 +5 so now you have ax = b+5 divide both by x and you get a so ... a=(b+5)/x

algebra
if you add 2t + 1 =3 so 3-1=2 so 2 times what equals 2. not -1 because that would equal negative 2. its 1 because 2 times 1 is 2 plus 1 is three.

math
how would i multiply 365/365 x 364/365 x 363/365...all the way to 326/365 using excel or the ti-83 calculator without having to input all those numbers. please help. thanks.

Statistics
A manufacturer makes two models of an item: model I, which accounts for 80% of unit sales, and model II, which accounts for 20% of unit sales. Because of defects, the manufacturer has to replace (or exchange) 10% of its model I and 18% of its model II. If a model is selected ...

math
How many hours of jogging at 5 1/2 mi/h would be needed for a 200-lb person to lose 5 pounds? (Assume calorie consumption is just enough to maintain weight, with no activity)

human biology
if a cell lacks ATP, which of the following processes would cease to operate immediately? diffusion Na+/K= pump facilitated diffusion osmosis or passive transport http://www.brookscole.com/chemistry_d/templates/student_resources/shared_resources/animations/ion_pump/ionpump....

human biology
if a cell lacks ATP, which of the following processes would cease to operate immediately? diffusion Na+/K= pump facilitated diffusion osmosis or passive transport

human biology
which of these characterisitics apply to exocytosis? requirese energy, requires, carrier proteins, requires channel proteins and/or requires vesicles. Thanks. Since this is not my area of expertise, I searched Google under the key words "exocytosis" to get these ...

human biology
I hope someone can help me answer this queestion: which of the following does NOT involve the sharing of electrons? H20, HCl, NaCl, H2 or C6, H12, O6 and why? The last three compounds you listed do not exist. Among the others, NaCl does not share electrons; the Cl completely ...

human biology
does DNA serve as a template for just DNA or mRNA as well? Go here: http://www.stanford.edu/group/hopes/treatmts/pbuildup/h2.html and scroll down to: How can RNAi be used to treat HD?

math ( subtracting fractions)
12 1/4- 4 1/8 When you add or subtract fractions, you have to have the same denominator. In this problem you have to change 1/4 to 2/8. Then subtract the fraction and then subtract the whole number. Please post your answer and we'll be glad to check it.

Survey for history..
fyi it is hieroglyphs and not hieroglyphics.

Survey for history..
thankz 4 the help. i can't find where the bookof the dead/ hieroglyphics fits. there is only one spot for 13 letters.

GOVERNMENT
Obviously the government feels that a mere citizen do have the ability to vote for a president.