Sunday
August 28, 2016

Posts by anonymous

Total # Posts: 98,912

math
Starting with x, 2x/5 = b 1/6 (3/5 x) = u b = u+105 Now just solve for x by substituting in the values of b and u
August 12, 2016

maths
540 * 1.10
August 12, 2016

maths
goods costing ₹540 are sold at a gain of 10% . Find the SP
August 12, 2016

world history
D
August 11, 2016

Matg
I have a case of 12x16 case of brownies how many square peices can I get in 2"
August 11, 2016

ART
Thank u
August 11, 2016

physics
a car moving with a speed of 50 km/hr can be spotted by breaks after at least 6m.If the same car is moving with a speed of 100km/hr the minimum stopping distance is? With solution
August 11, 2016

physics
a car moving with a speed of 50 km/hr can be spotted by breaks after at least 6m.If the same car is moving with a speed of 100km/hr the minimum stopping distance is?
August 11, 2016

prealgebra
(12/3.5)1.25
August 11, 2016

NCC
v = a t = 20 m/s
August 11, 2016

Math
so 1 man mows 4 greens in 160 min 1 man moves one green in 40 min You did not say how many greens to mow in an hour so I can not continue, but you should be able to figure it out now that you have the data for one man
August 11, 2016

typos
makes no sense
August 11, 2016

Math
240 people/one day so 240/4 = 60 so 60 - 24
August 11, 2016

physics
24 relative to you. 12 relative to the mirror surface and the floor etc. It is approaching the mirror surface just as fast as you are.
August 11, 2016

Math
You do whatever is inside the parentheses first.
August 11, 2016

Math
180 - 163
August 11, 2016

Maths
games played = 9+N games won = 2+N 2+N = (1/2)(9+N) 4 + 2 N = 9 + N N = 5
August 11, 2016

Calculus
Could be :)
August 11, 2016

Calculus
Find arccos (sqrt2/2). Can this be pi/4 and 7pi/4?
August 11, 2016

Physics
depends on temperature BUT I suspect that there is liquid chlorine in the bottle. If so then the pressure remains at the vapor pressure of Chlorine until it is evaporated. The N2 is all gas in there until you get down to liquid air temperature so it follows gas laws.
August 11, 2016

Sum of geometric sequences
5,15,45,135,....S10
August 10, 2016

Math
LCD 3/4 1/8 7/16 3/32
August 10, 2016

Math
draw four number lines and mark the spots. remember absolute value of -x is +x eg |-147| = + 147
August 10, 2016

Biology
no
August 10, 2016

Science
*scientific inquiry useful - Scientific inquiry refers to the diverse ways in which scientists study the natural world and propose explanations based on the evidence derived from their work.useful in such widely divergent enterprises as science and crime scene detective work...
August 10, 2016

math
a number is 160 when rounded off to the nearest ten.whta is the smallest possible value of the number?
August 10, 2016

ap chemistry
Propane gas and oxygen gas will chemically react via combustion. Write a blanced equation for this change and then use stoichiomety problem solving to determine the number of carbon dioxide molecules that can theoretically form.
August 10, 2016

ap chemistry
Ammonia decompose upon intense heating to produce nitrogen and hydrogen elemental products. Write a balanced equation and then use stoichiometry problem solving to determin the mass of nitrogen product that can form if exactly 25.50g of ammonia is fully decomposed.
August 10, 2016

chemistry
Ammonia decomposes upon heating to produce nitrogen and hydrogen elemental products. Write a balanced equation and then use stoichiometry problem solving to determin the mass of nitrogen product that can form if exactly 25.50 grams of ammonia(NH3) is fully decomposed.
August 10, 2016

Math
C
August 9, 2016

Language Arts
or A
August 9, 2016

Language Arts
Would it be D
August 9, 2016

Language Arts
Identify the climax in the following example. 1.A boy sees a snake lying still in the road. He bends close to look at it. Suddenly, the snake moves. The boy jumps back. A. A boy sees a snake lying in the road. B. The snake is lying still in the road. C. The boy bends down to ...
August 9, 2016

ap chemistry
use dimensional analysis to find how many moles of nitrate ions are in 40.0 mL of a 0.75 M aqueous solution of aluminum nitrate
August 9, 2016

Science
Two forces whose magnitude are in the ratio 3 :5 gives resultant of 28. If the angle of their inclination is 60 °find the magnitude of each force
August 9, 2016

science
A spring fixed at one end can be streched by hanging standard masses from the other end. What masses is needed to achieve a stretching force of 5N?
August 9, 2016

Science
Yes
August 9, 2016

Algebra 1
Thank you
August 9, 2016

Algebra 1
1. Which is an example of an algebraic expression? A. 4(3+8) B. 18^2 C. 3 - a*** D. 21 x 4 2. Which is an algebraic expression for 5 more than? A. 5z B. z + 5*** C. 5z + 5 D. 5 - z 3. Which word phrase can be used to represent the algebraic expression 4(21 + n)? A. 4 plus the ...
August 9, 2016

Algebra
The present age of raj and ram is in the ratio 1:3. After 5 yrs rams age wiil be 2yrs more than twice of rajs age . Find their present ages
August 9, 2016

science
what is the ratio between acceleration and velocity?
August 9, 2016

math
In the number 8,920,000 the digits in the tens and hundreds places are the least and the same. What are they?
August 8, 2016

Applied Stats
Based on the data collected by the National Centre for health Statistics and made available to the public in the Sample Adult database, it was found that the percentage of adults who have at some point in their life been told that they have hypertension was 24 percent. Suppose...
August 8, 2016

algebra
Robert is N years old. Robert's brother is 6 years younger than Robert.
August 7, 2016

West Charlotte
Rosa has 3 3/4 pounds of dough. She uses 3/4 of a pound for one medium loaf of bread. How many medium loaves of bread could be made from Rosa's dough?
August 7, 2016

math
how many different ways can 24 horses win 1st & 2nd places
August 7, 2016

Maths
c/s = 2/7 so s = 7 c/2 .35 c +.2 s = 180 .35 c + .2 (7 c/2) = 180 .35 c + .7 c = 180 1.05 c = 180 c = 171 kg
August 7, 2016

Maths
h = r/4 or r = 4 h 3 (h+6) = r+6 3 h + 18 = 4 h + 6 h = 12
August 7, 2016

algebra 2
Same both sides of mean Your mean is not your median
August 6, 2016

algebra 2
google David Lane Normal distribution look at picture mean is median
August 6, 2016

algebra 2
NOT SYMMETRICAL
August 6, 2016

algebra 2
I believe a normal distribution tends to be symmetrical about the mean which is therefore the median.
August 6, 2016

algebra
5/4 = 1.25 percent per quarter 5 = 1.0125^n ln 5 = n ln 1.0125 n = 130 quarters = 32.4 years
August 6, 2016

fundamentals of math
3.5/36 = h/2640
August 6, 2016

fundamentals of math
By holding a ruler 3 feet in front of her eyes as illustrated in the diagram, Carla sees that the top and bottom points of a vertical cliff face line up with marks separated by 3.5" on the ruler. According to the map, Carla is about a half mile from the cliff. What is the...
August 6, 2016

fundamentals of math
A point lies on the of a line segment if and only if the point is equidistant from the endpoints of the segment. angle bisector trisector altitude perpendicular bisector
August 6, 2016

Fundamentals of Math
A tree casts a shadow 36 m long. At the same time, the shadow cast by a 49-centimeter tall statue is 90 cm long. Find the height of the tree. Round to the nearest tenth.
August 6, 2016

maths
solve this anagram please. its a famous mathematician ghetgninlai
August 6, 2016

maths
10 c + 26 a = 740 but a = 50 - c so 10 c + 26 (50 - c) = 740 -16 c + 1300 = 740 16 c = 560 c = 35
August 6, 2016

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

accounting
fgdsgfddgsh
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

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