Thursday
April 17, 2014

Posts by tina


Total # Posts: 961

math
the surface area of a prism with base 25mm by 35 mm and the height at 50 mm

chemistry
11.During an acid-base titration, 25 mL of NaOH 0.2 M were required to neutralize 20 mL of HCl. Calculate the pH of the solution for each of the following: 12.Before the titration. 13.After adding 24.9 mL of NaOH. 14.At the equivalence point. 15.After adding 25.1 mL of NaOH. 1...

business math
you are moving to a new home and have rented a truck to assist you with the move, truck rental charge 39.95 per day plus $0.68 per miles, you will need the truck for 3 days and will travel 460 miles. what will the total cost to be.

business math
Using your answers from the the previous question, if the profit on regular gas is $0.18 per gallon and the profit on premium gas is $0.20 per gallon, what was the station’s total profit? (Points : 2)

business math
You are interested in purchasing a wide-screen television set at Target. On this type of TV, the ratio of screen width to screen height is 16 to 9. If a certain model you are considering has a screen width of 48 inches, what is the height of the screen (in inches)?

Math
Explain "the larger the denominator the smaller the fraction?"

chemistry
how many moles of gold are there in 1.00 L of seawater if there are 1.50^17 atoms of gold in the sample?

Biology immediate help! please!
Need help please don't understand these questions. Dihybrid Genetic Crosses for Corn. A. What are the two hypotheses that you made about the allelic frequencies of progeny produced by the crosses: P x P? P F1 x F1? F B. Based on what you know about phenotypes and Figure 2,...

math
y/9=-5/3

Chemistry
You have 500 mL of a 5.0 M solution of nitric acid HNO3 (63.01 g / mol) dissolved in water. How many grams of nitrogen does the solution contain?

Thermodynamics
Suppose you start with a liquid mixture of 60% nitrogen and 40% oxygen. Describe what happens as the temperature of this mixture increases. Be sure to give the temperatures and compositions at which boiling begins and ends.

Thermodynamics
Suppose you start with a liquid mixture of 60% nitrogen and 40% oxygen. Describe what happens as the temperature of this mixture increases. Be sure to give the temperatures and compositions at which boiling begins and ends.

math
Alana bought 3/8 pound of swiss cheese and 1/4 pound of American Cheese. Which pair of fractions cannot be used to find how many pounds of cheese she bought in all a)6/16 and 4/16 b)9/24 and 6/24 c)24/64 and 8/64 d)15/40 and 10/40

Thermodynamics
Suppose you start with a liquid mixture of 60% nitrogen and 40% oxygen. Describe what happens as the temperature of this mixture increases. Be sure to give the temperatures and compositions at which boiling begins and ends.

math
a storage crate has the dimensions : 12ft * 6ft *5ft. how many cube-shaped boxes measuring 8 inches in length could be stacked completely within the cube??

Math
sec(alpha) = -4(√(5))/5 find exact values at alpha for the remaining five trig functions

Thermodynamics
Suppose you start with a liquid mixture of 60% nitrogen and 40% oxygen. Describe what happens as the temperature of this mixture increases. Be sure to give the temperatures and compositions at which boiling begins and ends.

math
julia picked 2 cards from a face down stack of cards containing 4 hearts 4 diamonds 4 clubs and 4 spades. Make a treediagram to find all the possible combinations for the 2 cards Julia picked

english
I'm writing a thesis for pathogens for infectious diseases. My essay is going to be about depressive disorder and anxiety disorder and I need to write a thesis for it.

Chemistry
What do we mean when we say that concentrated nitric acid (HNO3) is 16 molar?

Physics
For a certain Chemical reaction, you find that delta H = -100kJ and delta S = -200 J/K. What is the Gibbs free energy for the reaction at: (a) room temperature (b) 800 C (c) comment on whether the reactions are spontaneous or not

Math
If 10 jugs of H2o fill 5/8 of a bucket. Another 4 jugs and 5 cups of H2o are needed to fill the remaining parts of buckets. How many cups of H2o can fill a bucket?

math
Jay is twice as old as Sandy and 2 years younger than Mike. Mike is 7 years older than Sandy. How old is Jay?

Sampling Distribution
Sampling Distribution Complete solutions and illustrations are required. 5.The standard deviation of a variable is 15. If a sample of 100 individuals are selected compute for a.The standard error of the mean. b.What sample size is necessary to double the standard error of the ...

Sampling Distribution
Sampling Distribution Complete solutions and illustrations are required. 4.The average breaking strength of a certain steel cable is 2000 pounds, with a standard deviation of 100 pounds. A sample of 20 cables is selected and tested. Find the sample mean that will cut off the u...

chemistry
determine h30+ in M, of 10.00ml of .100M NaOH after adding 10.00ml of indicator solution?

Trig
Four wires support a 40-meter radio tower. Two wires are attached to the top and two are attached to the center of the tower. The wires are anchored to the ground 30-meters from the base of the tower. What is the total length of wire needed?

trig
Four wires support a 40-meter radio tower. Two wires are attached to the top and two wires are attached to the center of the tower. The wires are anchored to the ground 30-meters from the base of the tower.

Math
when i do this i get 3a^2sqrtb is that correct?

Math
when i do this i get 3a^2sqrtb is that correct?

Math
how would i write out this equation into a simplified experssion using exponents. (81a^8b^4)^1/4

math
the answer is 2,220

Westwood college
Sixth Fourth Bank has an issue of preferred stock with a $5.50 stated dividend that just sold for $97 per share. What is the bank’s cost of preferred stock?

programming
3. Your company needs to depreciate its assets. The accountant wants to record the purchase price, the useful life, and the estimated salvage value. Your program should be able to depreciate by the straight-line method. For example, a computer system was purchased for $25,000....

programming
Write the following algorithms using pseudocode: 1. Calculate the net pay for an hourly employee. You will be given the name, pay rate and hours worked. You must calculate the state withholding (5%), federal withholding (18%), and Social Security (8%). You should display the n...

math-probability
A state lottery has a daily drawing to form a four-digit number. The digits 1 through 9 are randomly selected for each of the four digits. For each selection any one of the digits 1 through 9 are possible. What is the probability to the nearest hundredth of the four-digit numb...

math
A game consists of tossing a coin and rolling an ordinary die. If the player tosses a head and rolls an even number, the player wins $3. Otherwise, the player loses $1. What is the expected value of this game? Select one: a. $6 b. $0 c. $3 d. $1

math
Flag question Question text A fair coin is tossed 6 times. What is the probability to the nearest hundredth of obtaining at least one head? Select one: a. .08 b. .98 c. .50 d. .02

math
A certain sweepstakes ticket has four categories of prizes with the following probabilities of being won: Prize Probability $100,000 1/500,000 $50,000 1/250,000 $20,000 1/200,000 $10,000 1/100,000 If each ticket costs $1.00, what is the expected gain or loss? Select one: a. $....

math
A certain sweepstakes ticket has four categories of prizes with the following probabilities of being won: Prize Probability $100,000 1/500,000 $50,000 1/250,000 $20,000 1/200,000 $10,000 1/100,000 What is the expected value of buying these sweepstakes tickets? Select one: a. $...

math
A disc-shaped spinner has five sections with the following colors and central angles: Blue, 60; Red, 120; Green, 45; Red, 45; and Yellow, 90. Determine the probability for one spin of the spinner. P(B U G)

math
A box contains 1 blue, 2 green, 1 red, and 2 yellow marbles. An experiment consists of randomly selecting two marbles without replacement. What is the probability of not obtaining a yellow marble?

trig
Two people decide to estimate the height of a flagpole. One person positions himself due north of the pole and the other person stands due east of the pole. If the two people are the same distance from the pole and a = 30 feet from each other, find the height of the pole if th...

chemistry
Calculate the theoretical percentage of water in gypsum, rounded to the nearest whole number %. (calcium sulfate dihydrate; CaSO4 ° 2H2O; Ca = 40 g/mol, S= 32 g/mol; O= 16 g/mol; H= 1 g/mol).

Math
A trapezoid is in the shape of a stage. write a coordinate proof to prove that TR and SF are para

math
there is 1/4 of a pear in every container of fruit salad. how many whole pears are there in 8 containers.

math
eight members of a club will make a paper chain. the chain is 4 feet long. each member will make an equal part. how much of the chain , in feet, will each member make?

math
Two people want to share 4/3 feet of rope equally. What length of rope should each person get?

Computer
I have the answer I was looking for, but do not know exactly how to format it into Excel. Can you please show that format ASAP? This is due tomorrow. Thank you!!! Bank Stmt Balance $4270.00 Add Rejected Checks 140.00 Deposited Checks 1650.00 Ending Balance $6060.00 Book Balanc...

trig
cos(+pi/2-theta)/csctheta+cos^2theta

English
I need help to choose a proposal argumentative topic using would or should. May you help me?

English 11 B
Langston Hughes Questions: 1. Why does Edward hand over his belongings? (1 point) A. He is afraid. B. He feels sorry for the men. C. He is in a hurry and thinks he will be able to get to his destination more quickly if he does as he is told. D. none of the above 2. Why don...

Math
there was very little rain in Austin one summer. In june, the depth of lake travis fell 3 inches from its usual level. In july, it went down another 5 inches. in August it finally rained adding 2 inches to the lake depth. How many inches below the usual level was the lake at t...

Math please help! Im so confused!
Thank you DrBob222 and Ms. Sue!!!!

Math please help! Im so confused!
it is estimated that at the turn of the 20th century, one farmer in the U.S could feed 25 people, whereas today, the ratio is about 1 to 130. How many farmers would it take today to feed 2600 people? Please help i dont even know how to do this problem!

physical science
Using Fig. 4.28 as an example, how much applied force would the man need to have to pull the block (weight or output force = 500 N) if the rope he is holding is 7 m long and the rope on the pulley is 2 m long? (Hint, the pulley is a simple machine)

physical science
8. Which one has more momentum? Which has the greater impulse? a. A 2000 kg car moving at 5 m/s b. A 9 g bullet traveling at 450 m/s

physical science
4. Jane weighs 150 lbs and Bob weighs 220 lbs. They decide to try skydiving. If they jump at the same time, who would reach the ground first

physics
Jane weighs 150 lbs and Bob weighs 220 lbs. They decide to try skydiving. If they jump at the same time, who would reach the ground first

Math
Find the standard divisor for the given population and number of representative seats. Assume the population is equal to 190,000 and the number of seats is 8. d = ______

algebra
convert 44.6 % to fraction notation

HSM/220 - HUMAN SERVICES ADMIN: SO YOU WANT TO HEL
To have effective organizational structure advantages in departmentalization would consist of good communication in each unit information would have to be well documented by intake to fit the client’s conditions and needs. Intake must make sure the information is passed o...

Probability
4 fair coins are tossed. What is the probability that all the outcomes are heads?

Steve help!
10,000 students took a math test. If there average score was 40 with standard deviation of 10, how many students must have scored between 20 and 40 marks? 3,772 2,227 5,000 3,334 4,772

penn foster
exam003062rr the staff

the facility
aesthetic is concerned with matter such as

the faclity
which of folling is a technique for limiting number childrenina intrest area

biology
provide information the muscles found within the forearm and hand

Culturally Diverse Background
A head start classroom has english and spanish word pairs attached to the door windoe play center and storage shelving to supply children with two labels for each physical objects or area. This is done to support

Culturally Diverse Background
the process of leaening code switching is meant to

Culturally Diverse Background
Describing an action is not practiced in her home or by friends

algebra
Example 2: The difference of two numbers is 16. The first number is 4 less than twice the second number. Set up this system that describes the situation.

Statistics
A university has an exclusive agreement with the coffee chain Monobeans. Several students and faculty complained about their lack of baked goods. Looking for a better provider of carbs and caffiene, the university management rents out for one trial semester a space within a ne...

chemistry 100
recovering a significantly larger amount of SiO than was present in the original sample

chemistry 100
how you could separate the components of a mixture of PbCL and NaSO and recover the two substances

algebra
a barrel contains 163 gallons of water and is being drained at a constant rate of gallons per hour write an equation that models the number of gallons g after t hours

math
What does same old means, can u please explain and let me know? Thanks

math
In lowest terms, my numerator is 4 less than my denominator. Write 5 fractions 1 could be.

math
Thank You:)

math
Can you please help me? I need to understand this problem. Thanks a lot

math
My numerator is 10 less than my denominator. I am equal to 3/5

math
Thank You!

math
How did we get 135 here? please explain? thanks

math
My denominator is 5 more than my numerator.I am equal to 27/72

math
if a square lot has an area of 256cm what the length of each side be?

Algebra
A 5 ft man cast a shadow of 3 ft standing next to a 22ft building. How far is the man standing from the building?

math
what is the sample standard deviation of 12 12 14 16 17 18 21 21

physics
A force of 3.4 n is exerted on a 7.8 g rifle bullet.what is the bullet acceleration in m/s^2?

math
if you live 71 mi from a river, does it make sense to say you live about 80 mi from river? explain

ODU
FIND THE EXACT VALUE OF COS U 4/5, PI/2 <U< SIN 2U=? COS 2 U= TAN 2 U=

chemistry
Water has a density of 0.089 g/ml. What is the volume, in gallons, of 11.1 tons of water?

algebra
find the area of a triangle with the base of 3 2/3 yards and height of 3/7 yrads

reading
All of the following statements about reading skills are true EXCEPT

math
how can you use place value to find the number of apples picked in all

Health
its not d

Chemistry
Isopropyl alcohol evaporated from a beaker at the rate of 1.057 mL/min. how many seconds would it take for 3.70 mL of water to be lost? thanks for helping!

maths
prove that tan(45+theta)+tan(45-theta)=2sec2theta

6th grade math
Cameron is making bead necklaces. Hehas 90 green beads Nd 108 blue beads. what is the greatest number of identical necklace es he can make if he wants to use all the beads

Science
Find the [H+] in a 0.0255 M solution of HF if the Ka = 7.2 X 10^ -4

child day care
the facility

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