Tuesday

October 25, 2016
Total # Posts: 101,381

**math**

add them and divide result by 6

*August 6, 2016*

**need acceleration or force**

not enough info

*August 6, 2016*

**physics**

Just do the vertical part of the problem. Vi = 20 sin30 = 10/m/s up v = Vi - g t = 10 - 9.81 t so t is about one second upward until v = 0 at the top. then another second falling for a total of two seconds in the air.

*August 6, 2016*

**math help me out**

If there is an easier way I do not know it.

*August 6, 2016*

**math help me out**

raised by (1+x) lowered by (1-x) p - p (1+x)(1-x) = 100 100/p = 1 - [ 1-x^2] 100/p = x^2 or p =100/x^2 then second p = 2304 = [100/x^2](1-x^2) 2304 = 100/x^2 -100 2204 = 100/x^2 22.04 = 1/x^2 x = .213 so 21.3 %

*August 6, 2016*

**MATH**

hypotenuse = 5 base = 8/2 = 4 3,4,5 right triangle so altitude = 3

*August 6, 2016*

**ALGEBRA**

3. A car cost $32 600 in the year 2001. By 2007, it is worth $12 295. By what percent did the car depreciate (decline in value) per year? 32600(1-R)^6=12295 correct? r=?

*August 5, 2016*

**ALGEBRA**

Thanks so much!

*August 5, 2016*

**ALGEBRA**

3 obviously, 64 from now on is better than 49 or 13 1. linear, slope = 2 2. quadratic, 1^2 2^2 3^2 ..... 7^2 3. exponential 2^n

*August 5, 2016*

**ALGEBRA**

You have just landed your first summer job and your boss has told you that you can choose from one of 3 pay structures for the first week (7 days) that you work there. And after the first week, your pay will be frozen at the final rate for the remainder of the summer. #1pay ...

*August 5, 2016*

**math typo**

sorry, did typo with calculator the first time I did problem 2

*August 5, 2016*

**math**

.01/12 + 1 = 1.0008333333 6000 *(1.000833333)^120= 6630.75 ============================= dx/dt= .07 x dx/x = .07 so ln x = .07 t x = k e^.07 t so 2 = e^.07t ln 2 = .07 t t = 9.90 so I agree with you if you round off but I do not know what accuracy you are supposed to have.

*August 5, 2016*

**math**

.01/12 + 1 = 1.0008333333 6000 *(1.000833333)^120= 6630.75 ============================= dx/dt2 = e^.07t ln 2 = .07 t t = 3.35

*August 5, 2016*

**maths**

V = pi r^2 h S = 2 pi r^2 + 2 pi r h = 88 * 10^4 cm^2 so 2 pi (r^2 + 7r) = 88 *10^4 r^2 + 7 r = about 14 *10^4 r is around 400 (do quadratic with calculator)cm almost all of the area is in the top and bottom so V = about 7*44*10^4

*August 5, 2016*

**physics**

draw ray from tip to center of mirror then outward to tip of bigger inverted real image. look at similar triangles 12 * 4 = 48

*August 5, 2016*

**Algebra**

1/2x(2x-4)^2 answer is not 2x(x−2)2

*August 5, 2016*

**Chemistry**

Consider the following reaction between sulfur trioxide and water: SO3(g)+H2O(l)→H2SO4(aq) A chemist allows 61.5 g of SO3 and 11.2 g of H2O to react. When the reaction is finished, the chemist collects 51.0 g of H2SO4. Determine the percent yield for the reaction.

*August 5, 2016*

**ALGEBRA**

You have just landed your first summer job and your boss has told you that you can choose from one of 3 pay structures for the first week (7 days) that you work there. And after the first week, your pay will be frozen at the final rate for the remainder of the summer. Option 1...

*August 5, 2016*

**Algebra**

800 - 6 m = 1000 - 10 m so 4 m = 200

*August 4, 2016*

**physics**

12 mm/s = .012 m/s = Vi initial speed up h = Hi + Vi t - 4.9 t^2 0 = 40 + .012 t - 4.9 t^2 Solve quadratic for t

*August 4, 2016*

**Microsoft exel**

4. You're working in a table that has three columns and five rows. Since the first row will be a header row, you want it to span all three columns. What formatting feature should you use? A. Connect cells B. Autofit cells C. Combine cells D. Merge cells

*August 4, 2016*

**math**

Grandpa says sam can have all the coins in his pocket if he discover the correct total valeu of the coins. What is the total value of the coins in grandpas, pocket that same should discover?show all mathematical thinking.

*August 4, 2016*

**biomechanics**

A golfer’s hands move through an arc length of 10 cm during a putt. What arc length does the head of the putter move through if the hands are 50 cm from the axis of the rotation and the putter head is 150 cm from the axis of rotation?

*August 3, 2016*

**interior **

Which one of the following statements regarding the concept of scale is correct?

*August 3, 2016*

**biomechanics**

A gymnast is performing her routine on the balance beam. She is standing on her left leg and facing forward along the long axis of the beam. Her right leg is flexed 90 degrees at the hip and with the knee extended. Her left arm is fully abducted 180 degrees at the shoulder, ...

*August 3, 2016*

**biomechanics**

The sweet spot on a baseball bat is 120 cm from the axis of rotation during the swing of the bat. (This seems long at first, since the bat is shorter than 120 cm. But the bat’s axis of rotation is outside of the bat and passes through the body of the batter.) If the sweet...

*August 3, 2016*

**math**

g = 300 + 50 t 2050 = 300 + 50 t 50 t = 1750 t = 175/5 = 35 hours

*August 3, 2016*

**Math**

is there any easier way to answer this question?

*August 3, 2016*

**chemistry**

why is helium considered a noble gas?

*August 3, 2016*

**Calculus1**

find the derivative using fundamental theorem of calculus integral of sin^3tdt from e^x to 0

*August 3, 2016*

**Math**

I am an even composite number less than 10 and grater than 6. I am

*August 3, 2016*

**Math**

I am an even composite number less than 10 and grater than 6. I am

*August 3, 2016*

**Calculus1**

Integral of |sin(x)| from 0 to 3pi/2? Does that mean that counted only just above the x-axis? thanks!

*August 3, 2016*

**biomechanics**

in a vertical jump and reach test, a 60 kg student jumps 60 cm, while 90 kg student jumps 45 cm. Assuming both jumps took the same amount of time, which jumper was more powerful?

*August 3, 2016*

**biomechanics**

A 50 kg pole vaulter has a horizontal velocity of 8 m/s at the completion of her approach run, and her center of gravity is 1.0 m high. Estimate how high she should be able to vault if her kinetic and potential energies were all converted to potential energy.

*August 3, 2016*

**Biomechanics**

A volleyball is bumped vertically up to a height of 10 m above the player’s arms. What was the initial velocity of the ball just after leaving the player’s arms?

*August 3, 2016*

**biomechanics **

Compare the kinetic energies of the following: a) A baseball (mass=0.145kg) moving at 100 km/h. b) A runner (mass = 75 kg) moving at 30km/h. c) A swimmer (mass = 75 kg) moving at 7 km/h. d) A discus (mass = 2 kg) moving at 20 m/s.

*August 2, 2016*

**Biomechanics**

Bob bench presses a 50 lb barbell. He maintains a constant speed on the way up and on the way down. If the barbell moves 75 cm in each direction how much work does Bob do on the barbell on the way up and the way down? What is the total work done?

*August 2, 2016*

**math**

Your required rate of return on company XYZ's preferred stock is 12%. Their preferred stock pays a fixed annual dividend of $4. A share of XYZ preferred is valued at

*August 2, 2016*

**physics **

A boxer is punching the heavy bag. The time of impact of the glove with the bag is 0.10 s. The mass of the glove and his hand is 3 kg. The velocity of the glove just before impact is 25 m/s. What is the average impact force exerted on the glove?

*August 2, 2016*

**Math**

Factor the following polynomials. 1. 25x³-36x

*August 2, 2016*

**maths**

15%

*August 2, 2016*

**math**

The base of a rectangular prism has dimensions (x)cm by (2x) cm and a height of (x + 2) cm. If the total surface area is 63cm squared, find the value of x and the dimensions of the rectangular prism....

*August 2, 2016*

**Algebra**

How do you a write an equation that shows this relationship a cell phone company offers a plan which includes unlimited texting for $40 per month and 250 anytime minutes per month, plus $0.20 for each minute over 250.

*August 1, 2016*

**maths**

-232

*August 1, 2016*

**maths**

4.5 Gallons of gasoline

*August 1, 2016*

**Geometry**

Can you make a rectangle with a parallelogram?

*August 1, 2016*

**math**

reduce to lowest term 9 + 7/12 + 6+ 3/4

*August 1, 2016*

**Math**

1 4/9+ 3 1/3 +4

*August 1, 2016*

**Finance, Math**

You take a short position in one European put option contract, with strike price 100 and maturity six months, on a stock that is trading at 100. The annual volatility of the stock is constant and equal to 25%. The dividend rate is zero. The annual (continuously compounded) ...

*August 1, 2016*

**Finance, Math**

You take a short position in one European put option contract, with strike price 100 and maturity six months, on a stock that is trading at 100. The annual volatility of the stock is constant and equal to 25%. The dividend rate is zero. The annual (continuously compounded) ...

*August 1, 2016*

**FINANCE**

You take a short position in one European put option contract, with strike price 100 and maturity six months, on a stock that is trading at 100 . The annual volatility of the stock is constant and equal to 25 % . The dividend rate is zero. The annual (continuously compounded) ...

*August 1, 2016*

**Need Help Please- Pre-Calc**

Y=1/5cos (-5x)

*July 31, 2016*

**math**

what is the average of 14 17 22 27

*July 31, 2016*

**Calculus**

First make a substitution and then use integration by parts to evaluate. The integral of (x)(ln(x+3))dx What do you substitute first?

*July 31, 2016*

**chemistry **

In which direction, on ceiling, floor or walls, the pressure exerted by air in a room will be maximum. Justify your answer

*July 30, 2016*

**Math**

Find the sum of first n terms and the sum of first 5 terms of the geometric series

*July 30, 2016*

**Maths**

Rajesh gets Rs 240 per month. He spends one-third of it on ice creams ,one-half on comic books and the remaining on wafers . Find the ratio of the money spent on each item

*July 30, 2016*

**WH**

Using the following passage from Jean-Jacques Rousseau's 1763 book The Social Contract to answer the following question Which quotation from the Declaration of Independence shows the influence of the idea of the social contract on the founders of the United States?

*July 29, 2016*

**Accounts**

Present value of Rs.2000 due in 6 years if money is worth compounded semi annually

*July 29, 2016*

**Physics**

sqrt (25 +16)

*July 29, 2016*

**math**

In a exam 80% students passed in accountancy, 85% paased in mathematic ,75% passed in both subject. If 45 students fail in boths subject than what is the total number of students?

*July 29, 2016*

**algebra**

The product of two consecutive integer is 5 three times the larger integer, what are the integers?

*July 28, 2016*

**algebra**

The product of two consecutive integer is 5 three times the larger integer, what are the integers?

*July 28, 2016*

**algebra**

The product of two consecutive integer is 5 three times the larger integer, what are the integers?

*July 28, 2016*

**algebra**

The product of two consecutive integer is 5 three times the larger integer, what are the integers?

*July 28, 2016*

**Health care**

it was not correct i believe its white

*July 28, 2016*

**Health care**

united states

*July 28, 2016*

**Health care**

C? I believe

*July 28, 2016*

**Health care**

Of the racial/ethnic groups, which has the highest rate of low birth weight infants? Asian or Pacific Islander Hispanic Black/ African American White

*July 28, 2016*

**General Chemistry**

what is the value of Kc if PbCl(s)=1.5g, [Pb2+]=1.6*10^-2 M and [Cl-] =3.2*10^-2 M at equilibrium? (The molar mass of PbCl(s) is 278 g/mol and its density is 5.85g/cm^3.)

*July 28, 2016*

**math**

An elevator went up 8 floors, then down 6 floors, down 5floors, up to 10 floors down 2floors and up 9 floors. If it stopped on the 15th floors. On what floors did it starts?

*July 28, 2016*

**Chemistry**

Buto pak hang lancau ..aku nk jawapan

*July 28, 2016*

**Math**

In Gulshan the ratio of private homes to apartment is 3:5. If all the apartments are brick made and 1/10 of the private homes are wooden, what is the maximum portion of houses that may

*July 28, 2016*

**Organic Chemistry**

Is helium considered a noble gas?

*July 27, 2016*

**Math**

Tobin borrowed $5000 from the bank in order to buy a new piano. He will pay it off by equal payments at the end of each week for 4 years. The annual interest rate is 3.5%. Determine the size of payments, and the total interest paid. Express your answers rounded to the nearest ...

*July 27, 2016*

**Math**

Carlos and Max are buying a house. They have $24000 for a down payment. The house price is $150000. If the interest rate is 8.85% compounded monthly, determine the size of the monthly payments they must make over the next 25 years to pay off the house. Express your answer ...

*July 27, 2016*

**Maths**

A clock gains 2 mins in a day and another clock loses 3 mins in a day. Both watch are set to the correct time . When will they both next show the correct time?(in number of days) Please show work.

*July 27, 2016*

**Science**

A branch of science concerned with the nature of matter and energy.

*July 27, 2016*

**SPANISH**

Daniel is shaving.

*July 27, 2016*

**physis**

buoyancy force = density * volume * g Net force up = buoyancy force - weight

*July 26, 2016*

**trig**

if sec theta =sqrt -20/3 state the exact value of tan theta

*July 26, 2016*

**MAth Trig**

Find the diameter of a circle with an arc length of 32 cm and a subtended angle of 72 degrees

*July 26, 2016*

**Algebra**

i did synthetic division and got to 52 and since the remainder is -4 i made a= -56 the multiple choice answers are a)48 b)56 c)48 d)-56

*July 26, 2016*

**Algebra**

i get -56 but how do i know this is right, when i plug -2 into equation i get 24

*July 26, 2016*

**Algebra**

when f(x)=2x^3−11x^3−4x+a is divided by x+2, the remainder is −4. What is the value of a

*July 26, 2016*

**math**

Points A, B, C, D, and E are coplanar and no three are collinear. In how many ways can the plane be named using only these points?

*July 26, 2016*

**Science**

How many grams of hydrogen chloride are percent in 250cm3 of comercial 37% by mass hydro chloric acid solution? The density of the acid is 1.19gram/cm3.

*July 26, 2016*

**Science**

What is the concentration off alcohol solution that was prepared by dissolving 40cm3 ethanol in 160cm3 water

*July 26, 2016*

**Maths**

Construct a parallelogram whose he=5cm each=6cm and angle r=85°

*July 26, 2016*

**Maths**

Construct a parallelogram whose he=5cm each=6cm and angle r=85°

*July 26, 2016*

**Math**

Bobby has a 95 in his math class. He had a test and got a 83 on it. What is his grade now?

*July 25, 2016*

**Normal**

Unscramble Canporveapdahograbl into 3 words

*July 25, 2016*

**trigonometry**

well, easy sin^2 (3x)+cos^2(3x)=1 that leaves on the left 1-cos^2 x + sin^2 x but 1-cos^2 x=sin^2 x so, now you are left with sin^2 x + sin^2 x which is NOT zero. The equation is false.

*July 25, 2016*

**rhyming riddles**

i run all day and never walk, i have a big mouth but i never talk

*July 25, 2016*

**rhyming riddles**

i run away every day and return every night, i am disliked by flowers and a thiefs delight

*July 25, 2016*

**Gemotery**

Polygon MNOPQ is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image M′N′O′P′Q′. The coordinates of point M are (2, 4), and the coordinates of point N are (3, 5).

*July 25, 2016*

**ststistics**

24% of college students say they use credit cards because of the rewards program. You randomly select 10 college students and ask each to name the reason he or she uses credit cards. Find the probability that the number of college students who say they use credit cards because...

*July 25, 2016*

**statistics**

2424% of college students say they use credit cards because of the rewards program. You randomly select 10 college students and ask each to name the reason he or she uses credit cards. Find the probability that the number of college students who say they use credit ...

*July 25, 2016*

**Algebra**

72/6 = 12 Therefore, when X is 13, one must multiply X by 12. 13 * 12 = 156 Z = 156

*July 24, 2016*