Friday

April 18, 2014

April 18, 2014

Total # Posts: 212

**college math**

The area of a wetland drops by 15 every 9 years. What percent of its total area disappears after 45 years?

**Physics**

What would be the total distance traveled?

**Physics**

A stone is thrown in the air with an initial velocity of 50 m/s at 37 degrees to the horizontal. Find the total time the ball is in the air.

**Physics**

The rope forms a triangle with the pole and the angle is between the rope and the point at which it connects to the pole.

**Physics**

A carnival seat and a passenger has a combined weight of 193. As the seat is spun on a 18m rope tethered to a pole at an angle of 59.2 degrees, at what speed is the seat traveling?

**Finance**

Find the APR, or stated rate, in each of the following cases EAR: 12.4 semianually 13.3 monthly 11.0 weekly 14.7 infintely

**English**

Thank you, Tyler and Ms. Sue.

**English**

present

**English**

Selina Sanchez, together with her colleagues, ________ a competitive market research model for other businesses to follow. (Points : 1) present presents

**English**

are

**Physics**

A ball has an initial velocity of -23m/s. If the ball has a new velocity of 76m/s after 27 seconds, what is the ball acceleration

**math**

If Julie bought 8 T-shirts, she would be short $28. If she bought 4 T-shirts and 3 baseball hats, she would have $17 left. If each hat cost $5, how much money did she have in the beginning?

**math**

Laundry- detergent $7.99 T Flower- bouquet $3.99 T, A grocery store receipt shows 5% state tax due on laundry detergent and a flower bouquet. Does it matter whether the tax is calculated on each separate item or the total cost? Explain.

**math**

Sarah bought 8 folders and 3 rulers. Lea bought 8 rulers and 3 folders. Sarah paid $1.25 more than Lea. How much was each folder if each ruler was 45 cents?

**math**

Stephen drove at a constant speed from Town X to Town Y at 9 A.M. yesterday. Half an hour later, Cole drove from Town X to Town Y at a constant speed that was 30km/h faster than Stephen's. By 9:30 A.M., Stephen traveled 40 km. Cole caught up with Stephen at Town Y, arrivin...

**math**

What is 20 divide by 6400?

**math**

Stephen drove at a constant speed from Town X to Y at 9 A.M.yesterday. Half an hour later Cole drove from Town X to Y at A constant speed that was 30 km/h faster than Stephens. By 9:30 A.m, Stephanie had already traveled 40 km. Cole caught up with Stephen at Town , arriving at...

**math**

This year the Sum of Mr. Bellinis age and his son's age his son's age is 38 years. 4 years ago, Mr. Bellini was 5 times as old as his son. How old is his son this year? How old is Mr. Bellini this year?

**math**

When dividing 0.08 by 0.4 I come up with 5, but I need to show it in a graph. I can't figure out how to do this

**thank you**

Thanks for your help Jai. ;)

**math**

This year, the sum of Mr. Bellini's age and his son's age is 38 years. 4 years ago, Mr. Bellini was 5 times as old as his son. How old is his son this year? How old is Mr. Bellini this year?

**math**

Thank you so much Steve. :)

**math**

Deepak is 10 years old, and his brother is 7 years old. In how many years time will their total age be 41.

**solve algebra equation**

32.1=a-21.8

**Chemistry**

The post that I followed for #1 ended up with the wrong answer

**Chemistry**

A 16.0 g sample of a compound known to contain 3 ion species is dissolved in 100. g of water. The boiling point of the solution is 103.1°C. What is the molar mass of the compound?

**Chemistry**

Hard ball candy is prepared from boiling an aqueous sugar solution that has a boiling point of 260.°F. What is the molality of this solution?

**Chemistry**

What is the freezing point of a solution of sucrose (table sugar), a nonelectrolyte, that contains 60.0 g of C12H22O11 dissolved in 413 g of water?

**Chemistry**

A solution is made by mixing 90.6 g of magnesium sulfate heptahydrate with 2320.0 g of water. 690.00 mL of the solution has a mass of 745.20 g. What is the molarity of the magnesium sulfate solution?

**Chemistry**

If you are making 230.0 mL of 2.70% (m/m) CuSO45 H2O, how many grams of the solute should you use?

**Trig**

Suppose a CD player makes 48 revolutions per minute. Through how many degrees will a point on the edge of a CD move in 1 minute? In 2 sec?

**Trig**

A tire is rotating 600 times per minute. Through how many degrees does a point on the edge of the tire move in 1 minute?

**Chemistry**

A tire is rotating 600 times per minute. Through how many degrees does a point on the edge of the tire move in 1 minute? In 1 second?

**Chemistry**

Suppose a CAV player makes 48 revolutions per minute. Through how many degrees will a point on the edge of a CD move in 1 minute? In 2 sec?

**Math**

What is 36 over 156 in simplest form?

**statistics**

Let x and y be the amounts of time (in minutes) that a particular commuter must wait for a train on two independently selected days. Define a new random variable w by w = x + y, the sum of the two waiting times. The set of possible values for w is the interval from 0 to 2a (be...

**grammar please help!**

thank you so much!

**grammar please help!**

1.D 2.A?

**grammar please help!**

I still need help on 1 and 2. Identify the object of the preposition in each of the following sentences. 1. Ashley and her father arrived home from work. a. and b. father c. from d. work 2. Ashley put her journalism books in the new bookcase. a. bookcase b. put c. new d. in ch...

**6th grade grammar please help**

thank you but I'm still confused on 1 and 3 could you explain why its not from and in.

**6th grade grammar please help**

I need a good grade in grammar so please check my answers! Identify the object of the preposition in each of the following sentences. 1. Ashley and her father arrived home from work. a. and b . father c. from d. work 2. Ashley’s bedroom was across the hall. a. bedroom b. ...

**Calculus**

Find dy/dx by implicit differentiation for x^2 - 2xy + y^3 = C

**Chemistry**

How many grams of CuSO4 * 5H2O are needed to prepare 100mL of a 0.10 M solution ?

**Chemistry**

Identify the atom that increases in oxidation number in the following redox reaction. 2MnO2 + 2K2CO3 + O2 2KMnO4 + 2CO2 *A.) Mn B.) O C.) K D.) C Please show work Thank you.

**Spanish: check answers**

Ms. Sue the answers are right under 19, It says answers and I listed my them. Thank You MathMat.

**Spanish: check answers**

Questions: 3. Paella is a dish like tacos. a dish made of rice, seafood, and vegetables eaten in Spain. another name for enchiladas. 4. Fast-food restaurants in the Spanish-speaking world are generally very popular with adults. look similar to the ones in the United States and...

**Us History**

How did social responsibility of businesses change during the Great Depression era?

**Calculus**

Determine convergence or divergence for the following series. State the tests used and justify your answers. Sum (infinity, n=1) 1/(1+e^-n) Sum (infinity, n=1) (2*4*6...2n)/n! Sum (infinity, n=0) (n-6)/n Sum (infinity, n=0) (n-6)/n! Sum (infinity, n=0) (100n^14)/4^n

**Calculus**

Determine convergence of divergence. If convergent, find the sum. Sum (infinity, n = 0) (e/pi)^n

**Spanish 1**

Complete the sentences with the correct form of ir. todos Los Dias, yo ____ a la escuela

**English**

period is right

**math**

Which units would you use to measure the area of a rectangle with L=1m and W=34 cm? Explain

**math**

i write out all the whole numbers,starting from 1,If i wrote 1994 digits altogether,what was the last complete number i wrote down

**math**

what is the interior angle of a regular polygon

**math**

Write the fraction in the simplest form. 12/56: 3/30: 5/25: 9/39: 6/54: 2/100: 8/18: THANKS

**math**

i thought you would add?

**math**

Jeremy collected nickels for one week. He is making stacks of his nickels to determine how many he has. The thickness of one nickel is 1/4 in. How tall is a stack of 4 nickels? 3 nickels, 2 nickels?

**Math**

Is yo last name akres/ acres, or Whatever.

**Science, Heat Transfer**

someone please help me!

**Science, Heat Transfer**

list 3 forms of radiation from the sun. how are they alike. how do they differ?

**math**

infinite

**math please help imedietely**

if for one row she needs 3red 6yellow and 3white, then for 8rows, 8x3 8x6 and 8x3= 24, 48, 24. :)

**its urgent math i need the answer fast**

first how many units?

**Algebra 1**

40 bicycles

**Geometry**

a baseball diamond is a square 27 cm on a side. how far is the homeplate from the second base?

**Earth-Space Science**

what factors might affect the length of the rays after an impact?

**Maths**

Let f(x) = √(x^2 + 1) - 1 (taking the positive real square root, as usual). When x = 10^-3, compute f(x), working to 5 significant figures at every stage of the calculation. Show (algebraically) that f(x) =(x^2)/[√(x^2 + 1) +1]. Use this expression for f to compute...

**geometry**

A regular pentagonal pyramid has a side length of 4 mm, an apothem that measures 3 mm, and a height of 4.1 mm. What is the volume of the pyramid?

**Calculus (Urgent Help)**

The graph of y=cos x * ln cos^2x has seven horizontal tangent lines on the interval [0,2pi]. Find the x-coordinate of all points at which these tangent lines occur.

**math**

when 8 children go on a picnic,6/8 wear jeans. how many wear jeans

**algebra**

The reflection of the tree in the lake is 49 in long. If your shadow in the lake is 14 in long and you are 5 ft, how tall is the tree? Put your answer as inches.

**social studies**

what state can be found at 60 degrees north latitude and 150 degrees west longitude?

**Physics**

Leroy, who has a mass of 110 , is skateboarding at 9.4 when he smacks into a brick wall and comes to a dead stop in 0.2. Find his deceleration.Find the force of impact. (ouch!)

**Math-Algebra-1**

graph 2x -7=0

**Math-Algebra-1**

graph 2x -7=0

**grammer**

Is is the simple predicate?

**grammer**

What is the simple subject and simple predicate in the sentence The smell of cooking is delicious to the hungry campers?

**Algebra**

2,250 watts to horsepower (Round answer to the nearest thousandth.)

**algebra**

38 milliamps to amps (Round answer to the nearest thousandth.)

**Algebra**

32 ½ meters to feet (Round answer to the nearest thousandth.)

**algebra**

1,200 mils to inches (Round answer to the nearest tenth.)

**physics**

the jet has a speed of 250 miles/hr, carried a bomb of 20 kgs, in 3000 ft. how seconds the bomb fall in to 3000 ft?

**physics**

the jet has a speed of 250 miles/hr, carried a bomb of 20 kgs, im 3000 ft. how seconds the bomb fall in to 3000 ft?

**Honors English III**

Write your own journal entry from the perspective of a member of Bradford's colony. What do you think of these unruly pirates? What shocks you the most about these surly characters? How do the manners of the pirates differ from yours?

**Trigonometry**

find all values of theta in the interval 0<theta<360 that satisfy the equation 3cos 2theta + 2 sin theta+1=0

**6th Grade Science**

what is electromagnetic energy?

**6th Grade Science**

what is electromagnetic energy?

**Social Studies**

When was hinduism invented and by who?

**mental maths**

what is 15 degrees lower than 7c

**Algebra**

9X+y=2 -4X-y=17

**maths**

If I am a proper fraction with a denominator of 20 and my decimal equivalent is 0.6 then what am I

**Chemistry**

amount of heat generated by the combustion of 245 g of CH3OH in 2CH3OH(l)+3O2(g)=2CO2+4H2O(l)

**History - Italy**

What is the history of the Italian sports of soccer and football. Is Italian football the same as American soccer? If so, what is Italian soccer? Thanks for your help.

**Physics**

If a baseball falls a vertical distance of 2.6 m from the first to the last image, what is the time interval between the first and last image?

**basic math**

34%

**chemistry**

the question was to check all that apply: BO33- H+ H3BO22+ O2- H3BO3 OH -

**chemistry**

what are the solute particles present in boric acid (H3BO3)?

**chemistry**

CrCl3(s) + AgNO3 (aq)= AgCl(s) + Cr(NO3)3(aq) A 0.750 g sample of impure CrCl3 was removed from a bottle that contained 1.75 g of impure sample. The removed sample was dissolved in water and required 42.5 mL of 0.215 M AgNO3 solution to react with the CrCl3 in the sample. What...