08/17/19

fast math help please!!!!

20. Communications The cross section of a television antenna dish is a parabola. The receiver is located at the focus, 5 feet above the vertex. a. Find an equation for the cross section of the... more

Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C.A

Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C.A single thermometer is randomly selected and tested.... more

Physics kinematics

a person is going along east with velocity v he observed rain to be striking 30 degrees with vertical once his velocity is 3v he observes rain to be striking 30 degrees with vertical. Find velocity... more

finding angular velocity and regular velocity when bouncing off a surface with friction?

Take the game of pong as a simple example. When you hit the ball with a paddle that has a frictional surface, the ball will spin as well as change direction according to the coefficient of kinetic... more

07/11/19

Word problem for my Algebra 1 class!!

Flying against the wind, an airplane travels 5340 km in 6 hours. Flying with the wind, the same plane travels 11,250 km in 9 hours. What is the rate of the plane in still air AND what is the rate... more

Transform technique

expand f(x)=x, 0<x<2 in a half range sine series

What will be the answer for -16 = -5 (2- p)

Integral, Riemann sum

Consider the function f(x)= -x^2/4 - 7integral (a=0,b=3)Calculate Riemann Sum Right-hand endpoints for on the interval [0,3] and write your answer as a function of without any summation signs.

07/08/19

Measurement Units and Ratio Conversions

One mile is equal to 5,280 feet. What is the sum of the lengths of all 18 holes on the golf course in miles?

07/04/19

How should you round with multiple nines after the decimal?

I have the number 382.36840999. I want to round this number to the 6th decimal place. Would this be 382.368409 or 382.368410? Why?

Story problem in algebra

The length of a toy box is two feet more than the width, and the height is 1 foot less than the width. If the volume of the toy box is 8 cubic feet, what are it’s dimensions?

Factor out the coefficent of the variable?

How do I factor out the coefficient of the variable 1/5k+15

11/05/17

Find the point on the line -6 x + 5 y - 6 =0 which is closest to the point ( 4, 5 ).

 please help answer asap

If f is continuous and ∫0 to 8 f(x)dx=10, evaluate the definite integral. ∫ 0 to 2 f(4x)dx?

If f is continuous and ∫0 to 8 f(x)dx=10, evaluate the definite integral. ∫ 0 to 2 f(4x)dx?   please help

10/25/17

help please show me how to slove

The names of 11 fifth-graders, including the top math and the top spelling student in the fifth-grade class, are placed in a hat and randomly selected to sit on the stage with the governor for his... more

10/22/17

physics question

A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0029 s. If the ball has a mass of 55 g and... more

03/30/16

You roll two six-sided number cubes. What is the likelihood that they would land on an even number and a 5?

Help with question:   You roll two six-sided number cubes. What is the likelihood that they would land on an even number and a 5?

03/12/16

College algebra

A basketball player scored 21 times during one game. She scored a total of 27 ?points, two for each? two-point shot and one for each free throw. How many? two-point shots did sheshe ?make? How many... more

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