# Posts by Haley

Total # Posts: 745

Algebra 1

math
2 feet, 5 in. = 29 in. 16 washing machines. 29 x 16 = 400 in.

physics
Elephants communicate via infrasound, at frequencies as low as 11 Hz that can travel up to 9 km. The intensity of these sounds can reach 106 dB, measured a distance of 4 m from the source. a) Determine the intensity level in W/m2 of the infrasound at 4 m from the source. b) ...

physics
Assume that there is no friction between m2 and the incline, that m2 = 1.8 kg, m1 = 1.4 kg, the radius of the pulley is 0.10 m, the moment of inertia of the pulley is 3.6 kg m2, and θ = 27.0°. Mass 1 is hanging vertically while mass 2 is on the incline. After mass 2 ...

chemistry
In a constant-pressure calorimeter, 55.0 mL of 0.310 M Ba(OH)2 was added to 55.0 mL of 0.620 M HCl. The reaction caused the temperature of the solution to rise from 22.23 °C to 26.45 °C. If the solution has the same density and specific heat as water, what is ΔH ...

English
What are the answers for chapter 9? Final Check: Money Problems

Thank you.

Will someone please check my answers as I need lots of help in science. 1. Which of the following is an example of matter? A. leaves B. shadow C. light from the sun* D. sound 2. Which of the following is an example of a chemical property of matter? A. ability to melt B. ...

Science Help!
Just help people and even if they are looking for all the answer on this website. Still help them and also explain why its the answer so they just don't get the answer without explanation

chemistry
Which of the following reactions have a positive ÄSrxn? Check all that apply. A(g) + B(g)--> C(g) 2A(g) + B(g)--> 4C(g) A(s) + B(g)--> 2C(g) 2A(g) + 2B(g)--> 3C(g)

Chemistry
Which of the following reactions have a positive ÄSrxn? Check all that apply. A(g) + B(g)--> C(g) 2A(g) + B(g)--> 4C(g) A(s) + B(g)--> 2C(g) 2A(g) + 2B(g)--> 3C(g)

chemistry
Which of the following reactions have a positive ÄSrxn? Check all that apply. A(g) + B(g)--> C(g) 2A(g) + B(g)--> 4C(g) A(s) + B(g)--> 2C(g) 2A(g) + 2B(g)--> 3C(g)

math
A pair of blocks of the mass M =30.7 kg, and 2 M are dragged over a rough, horizontal surface by two constant forces of magnitude F=98.0 N. The angle α = 22.7 ° . The blocks are displaced 7.5 m, and the coefficient of kinetic friction is 0.258. *for the normal force ...

Physics
A pair of blocks of the mass M =30.7 kg, and 2 M are dragged over a rough, horizontal surface by two constant forces of magnitude F=98.0 N. The angle α = 22.7 ° . The blocks are displaced 7.5 m, and the coefficient of kinetic friction is 0.258. *for the normal force ...

I got 100% the real answers are 1=d 2=c 3=a 4=c 5=c

Physics
A bush baby, an African primate, is capable of leaping vertically to the remarkable height of 2.3 m. To jump this high, the bush baby accelerates over a distance of 0.14m while extending the legs. The acceleration during the jump is approximately constant. What is the ...

physics
Heather and Jerry are standing on a bridge 53m above a river. Heather throws a rock straight down with a speed of 12m/s . Jerry, at exactly the same instant of time, throws a rock straight up with the same speed. Ignore air resistance. How much time elapses between the first ...

chemistry
A solution of silver perchlorate (AgClO4) is made by dissolving 40.4 g of pure silver perchlorate and diluting it to exactly 140 ml. What is the solutions molarity? Can you just go through the steps of what I need to do? I'm so confused. Thanks

I got they curl up in... I cant figure out the last word but the letters are D, E, and Y

math
Tina and Jim live 5 miles apart from each other. Tina ran from her house to Jim's house at a rate of 10 miles per hour. Jim ran from his house to Tina's house at a rate of 8 miles per hour. How far had Jim run by the time he crossed paths with Tina?

math
At a construction site, 20,000 pounds of gravel are needed to create a driveway with an area of 400 ft2. What area of driveway can be added with another 125 pounds of gravel? 25.5 ft2 312 ft2 160 ft2 2.5 ft2 5 ft2

biology
how does sugar affect anthocynins?

biology
how does light affect anthocyanins?

algebra
If 50 tickets to the concert cost a company \$1,649.50, what do 4 tickets cost? A. \$164.95 B. \$32.99 C. \$65.98 D. \$98.97 E. \$131.96

Math
In this case. Would you use sinA/a=sinB/b=sinC/c

Math
How do you know that?

Math
The three angles of a triangle are 105°,25°,50° . In what ratios are the sides?

Math
What do you do next?

Math
The three angles of a triangle are 105°,25°,50° . In what ratios are the sides?

math
A \$15,000 debt is to be amortized in 12 equal semiannual payments at an annual interest rate of 11% on the unpaid balance. Construct an amortization table to determine the unpaid balance after two payments have been made.

Algebra 1
y=-x+10

health
With bone-strengthening activities, your feet, legs, or arms support your body's weight, and your muscles push against your bones. This helps make your bones strong. Running, walking, jumping rope, and lifting weights are examples of bone-strengthening activities.

Science (A&P)
Trace the path of food from the mouth to the large intestine and what occurs at each structure. Anything would be helpful because I am having trouble finding the answer.

Science
When a cell is infected with a virus, what is produced for future protection? i thought it was good bacteria but i don't think a cell can do that. So confused.

Algebra 2
That is 300 degrees so (1/2,square root 3/2). The cosine is (1/2). For exact value, (5 pie/3) times (180/pie). Cross multiply. Hope that helps!

Algebra
How do you find the excluded value if there is another variable or number in the denominator? Such as the equation 12(a) over a squared minus 3(a) minus 10?

chemisty
how many joules of energy are needed to change 275 g of water from 15 degrees C to steam at 100 degrees C?

Social Studies! CHECK!
What do you think the answers are?

chem
How many grams of NH3 are present in 725 mL of gas at STP?

12 : is false everything else looks great

Education
it does not give a exact answer, it's wording is unclear.

Education
well help me out hoe

Education
In a study about kindergarten readiness, which one of the following was true? A. Group participation skills were viewed as insignificant in comparison to academic skills. B. The ability to write one's name was followed by self-control. C. The majority of teachers placed ...

education
Teachers usually ask more of this type of question even if it is NOT recommended: convergent. B. divergent. C. open-ended. D. recall.

ece
I think C

ECE
Would it be D?

Early Childhood
Agreed

Chemistry
2 NO(g) + O2 (g) <==> 2 NO2 (g) Given that Kp=7.96×1012 for the reaction above and the following starting conditions: Initial Concentrations p(NO)=0.775 atm p(NO2)=0.000 atm p(O2)=0.789 atm Determine the equilibrium concentration of NO2.

math algebra
I have a really hard problem and I need help answering it. Two trains are traveling opposite directions. One train is traveling at the speed of 90 mph. The second train is traveling at a speed of 95 mph. The two trains travel for 3 hours. How far apart are the two trains?

math algebra

math
coach kent brings 3 qt of sport drink to soccer practice each player gets the same amount of drink how many oz of the drink does each player get?

Physics
Calculate the percentage of Earth’s gravitational force on the ISS astronauts while orbiting at an altitude of 248 miles above Earth’s surface. To do this, compare the gravitational force on an orbiting astronaut to the force on the astronaut here at Earth’s ...

English 12
Explain how a word can be a morphemic noun and a syntactic adverb in the same sentence.

physics
A 17 kg child descends a slide 3.5 m high and reaches the bottom with a speed of 4.5 m/s. How much work was done by friction as the child goes down the slide?

physics
A 17 kg child descends a slide 3.5 m high and reaches the bottom with a speed of 4.5 m/s. How much work was done by friction as the child goes down the slide?

physics
A 17 kg child descends a slide 3.5 m high and reaches the bottom with a speed of 4.5 m/s. How much work was done by friction as the child goes down the slide?

statistic
Neither! The response variable used to be called the depended variable. It's also plotted along the y-axis!

EARTH SCIENCE
I have taken the exam on penn foster and 125 gallons is not the right answer!

Elementary Math
All I did was 15.4 x .7 which equals 10.78

Early Childhood Education
lol ,dang she told you!

Spanish 4
help with worksheets

math
What number must be added to make a perfect square trinomial x^2+(8/5)x

AP Chemistry
If Q<K then the reaction will flow from reactants to products. If Q>K then the reaction will flow from the products to the reactants. In this case K=.278 and your Q=.226 so Q<K. The reaction will flow from reactants to products.

College Algebra
Pencils cost 20 cents and pens cost 50 cents. Mabel buys x pencils and y pens, spending \$2.00. Write an equation in standard form with integer coefficients that relates x and y.

College Algebra
Write an equation for the amount of money, A, that we would have if we invested \$25,000 at 6% per year for 5 years compounded instantaneously.

College Algebra
Write an equation for the amount of money, A, that we would have if we invested \$2000 at 8% interest for 10 years compounded semiannually (twice each year)

College Algebra
Solve the System 2x-8y=20 3x-12y=30

College Algebra
A 50 gallon barrel plumb full of water springs a leak in the bottom and leaks at a constant rate of two gallons per minute. Write an equation that relates the amount of water left in the barrel, y in terms of how many minutes have passed since the leak began, x.

College Algebra
A company that bought a machine for \$30,000 wants to depreciate its entire value equally over the next ten years. Write an equation that represents the machine's value, v, in terms of the number of years that have passed since the machines purchase, t.

College Algebra
Change the equation 5x+3y=60 to slope-intercept form.

College Algebra
Change the equation to slope-intercept form.

College Algebra
Mints cost 5 cents each and gumballs cost 3 cents each. Kathleen spent 60 cents buying x mints and y gumballs. Write an equation in stand form that represents all the different combinations of mints and gumballs that Kathleen might have purchased.

algebra
what is the cube root of -125x^6

world history
what did samuel kemper and the republican army accomplish?

Chem 1
Suppose 1.624g of salt FeSO4 is placed in a 250mL flask to which 50mL of water and 10 mL of 3M H2SO4 are added. How many mL of .1062 M KMnO4 solution are required to reach the endpoint?

Chem 1
What about the mL of water and H2SO4

Chem 1
Suppose 1.624g of salt FeSO4 is placed in a 250mL flask to which 50mL of water and 10 mL of 3M H2SO4 are added. How many mL of .1062 M KMnO4 solution are required to reach the endpoint?

Science
Oooh this helped me on mine.

Math
if kelly gave 1/3 of a pizza to holly and 1/5 to diana, how much did she have left?

haley
I don't know

math
write a numerical expression to represent the phrase Half a number increased by 34

math
a carload of fraternity brothers leave their house for a long weekend trip. three hours later a second carload of brothers leaves the same house and travels the same path. if the second care drives and average of 15 mph faster than the first, what is the average speed of eavh ...

math
jim has a box in the shape of a rectangular prism. The area of the base of the box is 48 square inches. The volume of the box is 144 cubic inches. Let h = the height of Jim's box. Write and solve an equation you can use to find the height of Jim's box.

algebra
A person invested 20,000\$ in stocks and bonds. Her investment in bonds is 5,000\$ more than half her investment in stocks. How much did she invest in stocks? how much did she invest in bonds?

Early childhood
Thank you!

English
What is the physical journey like in the novel "Murder on the Orient Express" and how does it add to the meaning?

trig
Find all solutions of the equation. Leave answers in trigonometric form. x^5-1024=0 I got 4(cos tehta + i sin tehta), tehta = 0, 2pi/5, 4pi/5, 6pi/5, 8pi/5 is this right

hazard bctcs
one aspect of the beauty of scenic landscape is its variability. The elevations (feet above sea level) of 12 randomly selected towns in the Finger Lakes Regions of Upstate New York are recorded here. 1117, 1360, 1009, 766, 1333, 1306, 577, 1144, 874, 658, 1306, 712. Find the ...

hazard bctcs
one aspect of the beauty of scenic landscape is its variability. The elevations (feet above sea level) of 12 randomly selected towns in the Finger Lakes Regions of Upstate New York are recorded here. 1117, 1360, 1009, 766, 1333, 1306, 577, 1144, 874, 658, 1306, 712. Find the ...

hazard bctcs
You are responsible for planning the parking needed for a new 256 unit apartment complex, and you're told to base the needs on the statistic "average number of vehicles per household is 1.3" If the owner wants parking that will accommodate 73% of all the tenants ...

hazard bctcs
According to Chebychev's theorem, what percentage of a distribution will be within k = 3.7 standard deviations of the mean? (Give your answer correct to one decimal place.)

World Geography
Honestly you guys really need to chill out!! It's not that big a deal, you don't have to flip out on him!! You could nicely say," Hey I don't think you should be asking for direct answers, but I can give you help". Now idk about you but I don't think ...

Chemistry
So would 248 ml be correct

Chemistry
The volume of a mass of gas is 300 ml at 25°C and 685 torr. What will the gas occupy at STP? Will the temperatures be the same when I do (P1V1/T1) = (P2V2/T2) ?

chemistry
if 500 g of mgcl2 are produced in the above reaction how many l of h2 are produced

math
melinda charges \$4 per hour for babysitting. Mrs Garden does not want to spend more than \$25 for babysitting. what is the maximum number of hours that she can have melinda babysit. the answer is \$24. solve the inequality

math
how munch sand in cubic feet for a sandbox 6 inches high 3 feet wide 3 feet long

US History
thank you

US History
He thinks the first on is It required all Americans to return runaway slaves to their owners, and free states opposed this law then the next one Slavery was increasing in the southern states, but northern states wanted to end slavery hes not sure and i don't want him ...

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