10/21/15

You'reRidingAnElevatorHoldingASpringScaleW/A1kgMassSuspendedFromIt.ThenScaleReads9.3N.WhatIsAccelerationOnElevator?
Physics Question 
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10/20/15

Please explain the answer to this word problem.. Answer is 6
Three machines can finish in one day the work done by 10 people in two days. How many machines would it take to do in one day the work done for forty people in one day?
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10/20/15

Compounded Continuously (use Pe^rt formula)
For an investment of $5,000 compounded continuously at 9% per year (use the "Pert" formula), answer the following, rounding to the nearest cent or cent per year: A.) what is the formula for the... more
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10/20/15

Find the exact value of tan theta
the terminal side of theta lies on the line x - y = 0 in quadrant III. Find the exact value of tan theta
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10/20/15

if 25% of us federal prison inmates are not us citizens, find the probability that 2 randomly selected federal prison inmates will not be us citizens
if 25% of us federal prison inmates are not us citizens, find the probability that 2 randomly selected federal prison inmates will not be us citizens
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10/19/15

When 3a^2 - 5a +c is divided by a + k, the quotient is 3a + 1 and the remainder is 3. Find c and k.
I don't know how to do this...my teacher says use synthesis (short division)
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10/19/15

find the cube root of 4 - 4 times the square root of 3i that graphs in the second quadrant.
I need help trying to find the answer in terms of sine and cosine using degree measure.
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10/18/15

Calculus help for related helps please!!! :)
A lighthouse is stationed at a point P some distance away from the nearest point Q on a straight shoreline. It's light is making 3 revolutions per minute. It is found that the beam of light is... more
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10/17/15

Range, domain and general standard form equation.
Hi I need help with these questions    During a friendly football game, Jose kicked a 16-m field field goal. The ball reached a maximum height of 4 m. a) Determine the standard and general form... more
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10/16/15

COMPLETELY CONFUSED
A brand name has a 60% recognition rate. Assume the owner of the brand wants to verify that rate by beginning with a small sample of 7 randomly selected consumers. Complete parts (a) through (d)... more
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10/16/15

Grade 4 Word Problem
A teacher is taking his class to see a play. There are 24 students. The auditorium has 11 seats per row. There will be an adult placed at the beginning and end of each row, as well as after every 4... more
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10/14/15

After 4 hours, a candle is 3 inches long. After 6 hours, it is 2 inches long. What's the equation for this problem?
  y = (-1/2)x + 3 y = (-1/2)x + 5 y = (1/2)x + 4 y = (1/2)x + 5
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10/13/15

One side of a triangle is 18 centimeters. Inside the triangle, a segment is drawn parallel to the 18-cm side.
One side of a triangle is 18 centimeters. Inside the triangle, a segment is drawn parallel to the 18-cm side. Forming a trapezoid whose area is one-third that of the original triangle, find the... more
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10/12/15

Calculate the molarity
Calculate the molarity of a solution prepared by dissolving 12.6 g of Na2CrO4 in enough water to produce a solution with a volume of 640. mL .Express the molarity to three significant digits.
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10/11/15

Vectors, Speed, and Constant Acceleration.
A rocket blasts off and moves straight upward from the launch pad with constant acceleration. After 3.0 seconds the rocket is at a height of 77 meters. (a) What are the magnitude and direction of... more
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10/11/15

teacher says the vectors should be added, but I think they should be subtracted
  A jet plane set to be on a velocity and course of 840 knots, 44 degrees south of west encounters wind. The flight tower shows that their actual velocity and path is 840 knots, 49 degrees south... more
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10/07/15

ANSWER NEEDED PLEASE
CAN'T THINK ANYMORE!!!   Let the random variable x represent the number of girls in a family with three children. Assume the probability of a child being a girl is 0.39. The table on the right... more
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10/07/15

The speed of 2 trains?
Two trains going in opposite directions leave at the same time. train B travels 20mph faster than train A. In 8 hours the trains are 880 miles apart. what is the speed of Train A and train B? 
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10/07/15

The sum of three consecutive odd numbers is 183. What is the smallest of the three numbers?
I'm so sorry I need help one more time I don't understand this problem either this is my last problem I got this problem from my 7th grade math teacher and I missed two days of school and I need to... more
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10/07/15

After converting the time data to a minute scale, calculate the mean and the standard deviation for the distribution. (Round your answers to 2 decimal places.)
After converting the time data to a minute scale, calculate the mean and the standard deviation for the distribution. (Round your answers to 2 decimal places.)
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10/07/15

If angle boC =2x+3 and angle cod =3x+2 find the value of x then find the measure of angle aob
If m  angle boC =2x+3 and m angle cod =3x+2 find the value of x Ethernet find measure of angle a o b 
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10/07/15

find the value of a and b , if a+b root3= 1/ 2- root3
I really need help please. my exam is near and i am not able to answer this question.. please help
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10/07/15

The distance between the two cities is about how many miles
On vacation, Lee Hong averaged 50 mph traveling from city A to city B. Returning by a different route that covered the same number of miles, he averaged 55 mph. What is the distance between the two... more
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10/07/15

Sam is playing with his slingshot and launches a rock straight up in the air with an initial upward velocity of 120 ft/sec.
Gravity slows the rock’s upward velocity and it eventually changes directions and falls back down to the ground. The height of the rock is defined using the function h(t) = -16t2 + 120t. What is a... more
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10/06/15

Empirical Rule
suppose the weights of eggs are normally distributed with a mean of 55 grams and standard deviation of 9 grams. According to the empirical rule, for the middle 95% of all eggs we would expect the... more
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