 6,990 Answered Questions for the topic Math Help

Math Help Math Statistics

05/21/20

#### Math Problem with Standard deviation and Expected Time

A survey was done on a group of people that asked the time, , it takes them to commute to work, rounded to the nearest 10 minutes. Use the probability distribution table below to answer Part 1-2.X... more
Math Help Math Mathematica

05/17/20

Suppose that f : [0, 3] → R is continuous on [0, 3], differentiable on (0, 3) and f(0) = 0, f(1) = 1, f(3) = 1. Show that there exists c1 ∈ (0, 3) such that f'(c1) = 1. Show that there exists c2 ∈... more
Math Help Math Calculus

05/07/20

#### What is the percentage of people taking the test score between 370 and 592?

The mean is 592, the standard deviation is 111, it uses the 68–95–99.7 rule

04/29/20

#### Regression Help

The following table gives information on the amount of sugar (in grams) and the calorie count inone serving of a sample of 13 varieties of Kellogg’s cereal. Sugar... more
Math Help Math Precalculus

04/29/20

04/23/20

#### Calculus question

The integral a=-5, b=5, ∫√(25−x^2)dx gives the area of a region R in the xy−plane.a) Identify and sketch the region R.b) Find the area of R using a known geometric formula, not by evaluating... more

04/23/20

#### Calculus Question help

A particle moves along a line with velocity v(t) = cos(6πt) for 0 ≤ t ≤ 4.a) Find the displacement.b) Find the distance traveled

04/23/20

#### Need help with this calculus problem

a) Which way is the particle moving vertically at time t = 2 seconds, up or down?b) At what rate is the y-coordinate changing at time t = 2 seconds?
Math Help Math Calculus

04/22/20

#### What are the fourth roots of -3+3√3i?

Math Help Math Calculus

04/21/20

#### Please, I need math help

Hi, I really need help on these problems:1. A point P moves along the curve in such a way that the y-coord is increasing at a constant rate of 0.06 units per second. Find the rate of change of the... more
Math Help Math Elementary Math

04/21/20

#### Math problem help!!

A student thinks that y=6+x means that y=6 and then you add x. What would you tell this student?
Math Help Math Calculus

04/20/20

04/19/20

#### Math problem help!!!!

If 64 out of 200 people surveyed preferred tea, then how many people out of 1500 would be expected to prefer tea?show work to help thanks!!
Math Help Math Calculus

04/17/20

#### Calculus problem help

Approximate the change in the function that occurs as x changes from x=7 x=6.99.

04/16/20

#### Calculus problem help

An object traveling on a line has velocity at time t, in meters per second, given by the function v(t)=e^t.

04/16/20

#### Calculus word problem help please?

b)Findv(t), the velocity at time t.c)Find s(t), the height at time t.d)How high does it go?

04/16/20

#### Calculus word problem help

The velocity at time t seconds of an object moving on a line is v(t) = 2cos(πt),with distance measured in meters. The position of the object at time zero seconds is 2 meters. Find the acceleration... more
Math Help Math Calculus

04/14/20

#### State the rational function you have created in factored form.[ie. h(x)=f(x)/g(x) ]

Important to noteRequired Characteristics﻿1.) Has 2 vertical asymptotes 2.) Has a horizontal asymptote at y=03.) Has a positive y-intercept4.) Has a hole in the fourth quadrant5.) Passes through... more

04/13/20

#### Math question help!!

A standard 46.00-oz can of juice has a radius of 5.3 cm and a height of 17.5 cm. What is its volume?show to work to help thanks!

04/13/20

#### Math problem help!!

A store sells two types of freezers. Freezer A costs $350 and measures 2 ft by 2 ft by 4.5 ft. Freezer B costs$480 and measures 3 ft by 3 ft by 3.5 ft. Which freezer is the better buy?show work to... more
Math Help Math Elementary Math

04/13/20

#### Math problem help!

A rectangular prism has dimensions of 3m, 8m, and Wm. It’s total surface is 246m². What is W?show work to help thanks!
Math Help Math Algebra 2

04/07/20

04/06/20

#### Math word problem

I need some assistance with a question involving complex numbers. The question is:Consider the complex number: 𝑧 = 3 − 3 𝑖. Evaluate:(i) 𝐼𝑚(𝑧) (ii) |𝑧| (iii) 𝐴𝑟𝑔(𝑧)
Math Help Math Elementary Math

04/06/20

#### Math problem help!!

A cylinder has a radius of 6ft and a height of 12 ft. Find its surface areashow work to help!!

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