09/29/16

Statistical eror predicting a due date
The test results gave a date that was a month before the baby was born. The hospital sent a doctor to mrs. Stewart to try to determine why the predicted due date was so far off. Mrs. Stewart found... more
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09/29/16

A photo has a length of (x + 3) inches and a width of 4 inches. The area of the photo is 24 square inches.
Set up and solve an equation to solve for x.
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09/29/16

The faculty senate has 24 members In how many different ways can the senate select a 4-person committee to attend a statewide conference?
i struggle with probability
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09/28/16

how many milliliters of 0.80M sulfuric acid are needed to make 50 mL of 0.080M sulfuric acid
 This is for my chemistry lab and I'm having trouble understanding how to set this one up to find the answer.
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09/28/16

Tristen invested $2,500 at an annual rate of 5%. How long will it take him to earn $1,125 in interest?
Have to the other than a lot to the other use the new year to the other use the new year of this is the way of the new year and the way to be a lot to the other day of the way of a 
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09/27/16

CHANGE OF HEAT
How many joules of heat are required to heat 35.0 g of isopropyl alcohol from the prevailing room temperature, 21.2°C, to its boiling point, 82.4°C? (The specific heat of isopropyl alcohol is 2.604... more
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09/27/16

math help thanks!
Find the slope-intercept form of the line that satisfies the given conditions.Through A(3, 0) and B(−5, 2)
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09/27/16

Math help please
Find an equation of the circle that satisfies the stated conditions. (Give your answer in standard notation.)Center C(−5, 9), tangent to the y-axis
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09/26/16

Antifreeze The cooling system of a car has a capacity of 15 liters. If the system is currently filled with a mixture that is 40% antifreeze, how much of this mi
Antifreeze The cooling system of a car has a capacity of 15 liters. If the system is currently filled with a mixture that is 40% antifreeze, how much of this mixture should be drained and replaced... more
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09/25/16

Give an example of f prime being zero but f prime prime not being zero.
The question asks to give an example of a function for which f'(0)=0, but f''(0) doesn't equal zero.   I cant think of one because if f' is zero then wouldn't f'' always be zero as well?
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09/25/16

True or false about monotonic functions
So I have a homework question that asks " A function which is monotonic on an interval is either increasing or decreasing on the interval." true or false? I answered True because wouldn't it be by... more
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09/24/16

Earthquakes
At what type of boundary does the world's largest earthquakes occur?
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09/24/16

Plate boundary
What type of plate boundary is nearest San Francisco?
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09/24/16

Which do you expect to be least soluble in methanol CH3OH?
a) Butanol CH3CH2CH2CH2OH   b) Hexanol CH3CH2CH2CH2CH2CH2OH   c) Ethanol CH3CH2OH   d) Propanol CH3CH2CH2OH   If the temperature of a saturated solution of KCl in water is lowered, a... more
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09/24/16

You work for a company that wants to start making money an selling game systems.Out of every 100 systems,one is faulty an will need repair.
Please help!
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09/23/16

sam's final exam will count as two tests. His test scores are 80, 83, 71, 61, and 95. What score does Sam need on the final to have an average score of 80?
sam's final exam will count as two tests. His test scores are 80, 83, 71, 61, and 95. What score does Sam need on the final to have an average score of 80?
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09/23/16

in one day Annie travels 5 times the sum of the number of hours brian traveled and 2. together they traveled 20hrs. find the numbers hours they each traveled
Please explain
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09/22/16

40 pounds of liquid most of the liquid fits into 5 beakers the remaining liquid fills a third of the six Beaker how many pounds of liquid is in one full beaker
How to put the numbers in the fraction and come up with the answer
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09/22/16

2 solutions.One has a? 40% concentration and the other has a? 25% concentration.
How many liters of each solution must be mixed to obtain 57% liters of a 35?% ?solution?
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09/16/16

Explain a General Math Strategy
In the Math workbook for the SAT, one strategy is Plug in Numbers to Find a Pattern, they only give one example and it does not really help me understand the concept. I have to explain it to the... more
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09/15/16

Each hemoglobin molecule contains..
Each hemoglobin molecule contains...   a)four iron atoms   b)four alpha chains   c) a molecule of oxygen and a molecule of carbon dioxide   d)  one alpha and one beta chain.   which... more
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09/15/16

If the density of gold is 19.3 gram/cm^3, what is the volume of a sample of gold with a mass of 0.5 kilograms?
I need help with this question! Help please. 
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09/13/16

Density question
The density of oil is 0.879 g/mL. How many grams of oil are needed to fill a 25.00 mL graduated cylinder?
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09/11/16

A fox runs at a rate of 26mi/n and a car runs at a rate of 44ft/s. What is the difference in their speeds?
Multiple  choice algebra review question. What's the difference in speeds?  
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09/11/16

College Algebra word problems
The length of each side of a square is 3 in. more than the length of each side of a smaller square. The sum of the area of the squares is 317in2. Find the lengths of the sides of the two squares.
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