Wednesday
July 30, 2014

Posts by omar


Total # Posts: 106

consumer maht
how many feet are there in 24 yards

Algebra 2
Please help me solve and find the excluded values for this problem. Also please show me the work for this problem I want to learn!F(h) = x^2-9/x^2-4x+3

Algebra 2
Please help me solve and find the excluded values for this problem. Also please show me the work for this problem I want to learn! h(x)=x^2-9/x^2-4x+3

Algebra 2
Please help me solve and find the excluded values for this problem. Also please show me the work for this problem I want to learn!@!@!. 49X^6+7X^7/28X^8

Algebra 2
d(x)= (54x^10)/(24x^8 )please help

algebra 2
Write in standard form (2b^2-b)+(b^2+4b-4) PLEASE EXPLAIN ON HOW TO DO IT I WANT TO LEARN

algebra 2
MY BAD WRONG QUESTION I ASKED IT IN THE QUESTION ABOVE

algebra 2
write in standard form. (2b^2b)+(b^2+4b-4)

Physics
You pick up a 2.5kg can of paint from the ground and lift it to a height of 1.7m .How much work do you do on the can of paint? You hold the can stationary for half a minute, waiting for a friend on a ladder to take it. How much work do you do during this time?

Math
I solved the equation in quadratic since the equation has perfect squares x^2+2x-35+0 ax^2 +bx -c=0 split the bx into 7 and -5 then you have ,x^2 +7x -5x -35=0 then factorize the equation to get x(x+7)-5(x+7)=0 (x-5)(x+7)=0 then equate each identity to zero solve for x x-5=0 x...

math
let the total t-shirts be x then, RED:3x/7 BlUES:x/3 Yellow: x-(3x/7 +x/3)=5x/21 we know reds are 20 more than blues therefore, 3x/7 =(x/3 +20) then solve for x by subtracting x/3 both sides (3x/7)-(x/3)=20 (2x/21)=20 ,multiply 21 both sides to eliminate the denominator ,then ...

Algebra
In 1987 a recording artist sold 14,000 albums. In 1998 that same artist sold 4,683 albums. Find the rate of change in record sales from 1987 to 1998.

Math
A bottle of juice holds 3/8 gallon when it is full. If 1/3 of the juice has been poured out, how much juice is left in the bottle?

Algebra 2
y+1=x -2x+3y=2

physics
What is the distance between an object and its real image formed by a thin converging lens with focal length f = 14 cm, if the object distance is 60 cm? (b) What is the minimum object-image distance for a real image formed by that lens?

physics
A ball is shot upward from the ground with an initial velocity of 12.0 m/s, along a y-axis that extends upward and that has its origin y = 0 on the ground. How much time does the ball take to move upward from y = 3.00 m to y = 5.00 m?

physics
If the water had lost 12000 joules and the calorimeter gained 1300 joules as the temperature of both rock and calorimeter increased from 22°C to 73°C and the mass of rock in the calorimeter was 189 grams, what is the specific heat, c, of the rock material?

Math ASAP
Height: 10 inches Base Perimeter: 40 inches Lateral Surface Area: 400 square inches (^^^this is the total surface area of the sides) What is the Surface Area of the triangular prism? (the picture of the shape looks like a pentagon but the rectangle is much longer)

Math ASAP
the picture of the shape looks like a pentagon but the rectangle is much longer

Math ASAP
i still don"t get it

Math ASAP
Height: 10 inches Base Perimeter: 40 inches Lateral Surface Area: 400 square inches (^^^this is the total surface area of the sides) What is the Surface Area of the triangular prism?

Math ASAP
Base Area: 22 square inches Lateral Surface Area: 308 square inches What is the Surface Area of the hexagonal prism?

Math ASAP
Base Area: 22 square inches Lateral Surface Area: 308 square inches What is the Surface Area of the hexagonal prism?

Math ASAP
Top Area: 26 square inches Top Perimeter: 34 inches Height: 11 inches What is the Surface Area of the 12-sided prism?

Math ASAP
320?

Math ASAP
Top Area: 13 square inches Total Surface Area: 346 square inches What is the Lateral Surface Area of the 5-sided prism?

Math ASAP
Base Area: 23 square inches Height: 11 inches What is the Volume of the hexagonal prism?

Math ASAP
yes its A pentagonal prism

Math ASAP
yes its A pentagonal prism

Math ASAP
Volume of Prisms: Volume: 150 cubic inches Top Area: 10 square inches What is the height? {5-sided prism}

project
i need to write projec about travel guide to Libay ?

Geomatry
A pilot flying at an altitude of 3500 feet sees a baseball field at an angle of depression on 35 degrees. what is the pilot's approximate horizontal distance, x, from the baseball field at this point? round your answer to the nearest foot.

algebra
Que? :b

math
Find all pairs of numbers such that when they are added they equal 100, and when they are multiplied they are at least 2000.

math
By a unit fraction, we mean a rational number with a numerator of 1. Symbolically, 1 b where b is a nonzero integer. Find six distinct, positive unit fractions whose sum is 1.

chemisrty
how many grams of cai2 are present in 3.28 moles? Can someone explaine how to do this question as well?

math
50 red cars and 30 white and 20 blue what is the probability of 2 cars from the same colors ?

Science
What is mantenrep?

Probability and statistics
What they said

math
what is the answer to 5z-1=?, 8s+4= etc. im thinking it is 5x3 (z=3)-1 equals 14. am I right?

chemistry
I still don't understand how to find the partial pressure of CO2. I've got the H+ concentration but I'm stuck at that step.

Algebra
Find the roots of the given equation by completing the square. αx^2 + βx + δ = 0

Algbera
solve for the roots of the quadratic equation 2(x^2 - 4x + 5)=x^2 - x

algebra
Sam earns R1 350 per week doing tiling. How much does sam earn in an hour if he works 45 hours a week?

science
look go answer it your self good

algebra
n-3=4

Physics
Sum of X forces = T = m1a = (30.5kg*a) Sum of Y forces = 125N - T = m2a = (12.5kg*a) 125N - (30.5kg*a) = (12.5kg*a) 125N = 43kg*2a 2.85m/s^2 = 2a 1.425m/s^2 = a

Physics
Sum of X forces = T = m1a = (30.5kg*a) Sum of Y forces = 125N - T = m2a = (12.5kg*a) 125N - (30.5kg*a) = (12.5kg*a) 125N = 43kg*2a 2.85m/s^2 = 2a 1.425m/s^2 = a

OChem
A solution consisting of water and ethanol is found to have a refractive index of 1.3541 at 20 degrees C. The refractive indices at 20 degrees C of water and ethanol are 1.3330 and 1.3610, respectively. Determine the molar composition (in percent) of the mixture by assuming a ...

trig
Find the exact value by using a half-angle identity. cos 22.5 degrees

Pre-calculus
The problem is Find the difference quotient and simplify your answer F(x)=5x - x^2, F(5+h) - F(5) over h ^2 this means power of two

geometry
abcd is a rectangle such that ab=-3 radical sign 48+2 radical sign 75+4radical sign108 and Bc=4 radical sign 27 +radical sign 300 prove that abcd is a square

Algebra
=2/3(4X-2X^2)/2X^2 + 3(3-3X)/3X =(4X^2-2X)/3X^2 + (3-3X)/X =(4X^2-2X+9X-9X^2)/3X^2 = (-5X^2+7X)/3X^2

physics
a 1500 kg car travelling at 16.7 m/s to the south collides with a 6300 kg truck that is initially at rest at a stop light. the car and the truck sticks togetherand moves together after the collision. what is the final velocity of the two-vehicle mass? answer in units of m/s.. ...

physics
a car, moving at 100 mi/hr, passes a stationary police car whose siren has a frequency of 500 Hz. what is the frequency change heard by observer in the moving car as he passes the police car? the velocity of sound in air is 343 m/s. ( 1 mi= 1.609 km). answer in units of Hz.

physics
a sound wave has frequency of 631 Hz in air and a wavelength of 0.54m. what is the temperature of the air? assuming the velocity of sound at 0 degree celcius is 334 m/s. answer in units of celcius.

physics
how do u find the acceleration of the sled? and what applied force would be required to cause the sled to move at a constant velocity, explain your logic and show all your calculations.

physics
a 12 kg sled is pulled horizontally with a force of 82 N. the coefficent of the kentic friction of the sled is 0.42. draw a FBD of the sled.

physics
I just dont understand the problem and i dont know how to solve it!

physics
object A exerts a gravitational force of magnitude 8.2 x 10^-10 N on object B. determine the magnitude of the gravitational force if, simultaneously, the separation distance is tripled, mA increased by 4 times and m8 is halved. explain your reasons and show all calculations.

Chemistry
What quantity of HNO3 can be neutralized by 0.1L of 0.50 m NaOH

Chemistry
What quantity of HNO3 can be neutralized by 0.1L of 0.50 m NaOH

chemistry
formic acid is a monoprotic acid with a ka at ml solutionof m of formic acid solution is titrated with m naoh what is the ph at the equivalence point

Physics
yea buddy

physics
does sunlight warm your body with light waves yes or no and why

possessive nouns
the chirps of the baby birds are quiet.

math
36 students need to be divided into teams of equal size. How many different ways can the students be divided (assuming each team must have more than 1 member)?

algebra
A 400 g solution is 25% salt. How much salt must be added to produce a solution that is 40% salt?

algebra
A 400 g solution is 25% salt. How much salt must be added to produce a solution that is 40% salt?

Physics
1025 is the density of sea water and 917 is the density of ice and 5,2 is the volume of the ice floating on the sea water

Physics
density of ice 917 kg/m^3, density of sea water is 1025 kg/m^3, a piece of ice floating has a volume of 5.2 m^3, what is the weight of the heaviest bear the ice can support without sinking?

5th grade
when crating an interval for a requncy table-hoe do you determine the interval number-

2nd grade,science
list four things all living things do

algebra 2
10X+7y= amount of money earned X= hours tutoring constraints: X+Y less than or equal to 16 X greater than or equal to 3 X less than or equal to 8 Graph it and find coordinates of intersectoin, then plug them in and see which one gives you the most money

Chemistry
I did a lab for Organic Chemistry I did a simple distillation for an unknown and found that it boiled at 76 degrees. I also found out that the unknown was ethanol since we knew what the 4 possibilities were and mine was closest to ethanol. I also did a fractional distillation ...

Math
C(13,5) = 13!/(3!*10!) = 154440/120 = 1287

chemistry
90Sr is one of the harmful radionuclides resulting from nuclear fission explosions. It decays by a first-order process with a half-life of 28 years. How many years would it take for 99.99% of a given sample released in the atmosphere to disintegrate? Answer in units of years. ...

chemistry
Consider the first order reaction A --> products where 25% of A disappears in 24 seconds. What is the half life of this reaction? ...i thought it would just be doubled but it isn't. i'd appreciate an explanation.

vector calculus
find an equation for the plane that contains the line x = 2t-8, y=3t +3, z= 5- t, and the point (5,4,0)

chemistry
im thinking its either 1 or 3 but im not sure if i need to add in H+ or not..

chemistry
its from our che 302 hw... the answer choices are: 1. 2 HNO3 + 3 Zn(s) <==> 2 NO(s) + 3 ZnO + H2O 2. 2 HNO3 + 3 Zn(s) <==> 2 NO(s) + 3 ZnO 3. HNO3 + Zn(s) + H+ <==> NO(s) + ZnO + H2O 4. 3 HNO3 + 2 Zn(s) <==> 3 NO(s) + 2 ZnO 5. 3 HNO3 + 2 Zn(s) + 7 H+ &l...

chemistry
help balance this redox equation: HNO3 + Zn(s) <==> NO(s) + ZnO ...i know i need H2O and possibly H+

dubai modern eduction school
the treansrer form of the club budgets $60 for gasoline .The CuRRenT Gas Price is$a.95/gallon.the school van gets anaverage of 20 milesper gallon OF gasoline. Determins how many mlies they can drive on this budget. RounD your answer the nearest mile.

MATH
FIND Y" if Y=ln(sec(x)+tan(x))

physics
128.45

algebra
7x=5+5x

economics
what is critical in determining whether something is produced as a public good?

math (3rd Grade)
hyu

Biology
what are the other parts of cells

math
to find the cordinates of the maximum or minimum point of a quadratic relationship?

Stat
the teacher wants me to make a survey questions about a sample and get a statistical data from it, how? including variance and standard deveriation. thanks

Physics
25 * ( sin 40 )

accounting (balance sheet, retained earnings...)
Problem P3-5A On September 1, 2002, the account balances of Rijo Equipment Repair Corp. were as follows: Nbr: Debits Nbr: Credits 101 Cash $4,880 154 Accumulated depreciation $1,500 112 Accounts receivable 3,520 201 Accounts payable 3,400 126 Supplies 2,000 209 Unearned servic...

biology
__Glycolysis is used to gain energy from glucose. How efficient is it (give an actual number) in its ability to get the energy from glucose into ATP? (assume the organism is undergoing anerobic fermentation). __You are studying a particular reaction in cells and determine that...

chem
Explain the fact taht acetic acid can be extracted quantitatively from ether solution by dilute aqueous sodium hydroxide solution.

algebra
simplifying exspreesions

word unscramble in french
tenerepsr

stoichiometry
What mass of solid aluminum hydroxide can be produced when 50.0 mL of 0.200 M aluminum nitrate is added to 200.0 mL of 0.100M potassium hydroxide?

science
An inherited trait among humans in Norway causes affected individuals to have very wavy hair, not unlike that of a sheep. The trait, called woolly, is very evident when it occurs in families; no child possesses woolly hair unless at least one parent does. Imagine that you are ...

business
Let's say that you and two partners want to start a company that specializes in special occasion gift baskets for individuals and corporate clients. You want to have a storefront in the local shopping mall or shopping area, as well as a vertual starfont on the internet. yo...

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