7,137 Answered Questions for the topic Math Help

06/06/22

#### How to find the common ratio, the common difference and the first four terms of a geometric sequence and a arithmetic sequences, if

The first term of the geometric sequence is 4, while 2 is the first term ofan arithmetic sequence.And, if the common ratio of the geometric sequence equals the common difference of the arithmetic... more

04/25/22

#### how many moles of iron oxide is required to produce 10 moles of carbon dioxide in the reaction 2Fe2 + c= Fe + 3CO2

how many moles of iron oxide is required to produce 10 moles of carbon dioxide in the reaction 2Fe2O3 + c= Fe + 3CO2
Math Help Math Finite Math

04/10/22

#### Rolling Dices and Chances

Suppose two dice (one red, one green) are rolled. Consider the following events. A: the red die shows 4; B: the numbers add to 2; C: at least one of the numbers is 5; and D: the numbers do not add... more
Math Help Math Finite Math

04/10/22

#### Finite Math Help

Consider the following. (Assume that the coins are distinguishable and that what is observed are the faces or numbers that face up.)Three coins are tossed; the result is at most one tail.Which of... more
Math Help

04/06/22

#### Ian traveled 2 miles in 20 minutes on his bike. He went the same speed for another hour. How far did he travel during his 1 hour and 20 minute bike ride?

Can you please put steps because my brain has a hard time understanding when I look at problems and I sometimes miss calculate, skip, or are confused by what steps are for. Sorry!
Math Help Math Statistics

03/09/22

#### Help Solving: A Single Population Mean using the Normal Distribution

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=26.3. You would like to be 99% confident that... more
Math Help Math Calculus Graph

01/24/22

#### How to find the area of the region bounded by the graphs y = x^3 + 2x^2 and the line y=x+1

1) Define the intersection points. (Show how you get the points).2) Shaded the region bounded.3) Evaluate the area (show the calculations).

01/18/22

#### what is the maximum number of additional accountants that should be hired to meet these plans?

15 people are employed, 20% of whom are typists. If management plans to keep a current number of typists, but to increase the number of accounting staff to the point where 12% of the total stuff... more
Math Help Math Calculus Integrals

01/03/22

#### Evaluating the surface integral with the part of a plane inside a cylinder

Question: how to calculate the surface integral of∫xz dσp where p is the part of the plane z+x-5=0 that is inside the cylinder x2+y2=1.Im trying to understand how to do this exercise... I guess... more

#### Circle question-Precalculus

A small radio transmitter broadcasts in a 23-mile radius. If you drive along a straight line from a city 31 miles north of the transmitter to a second city 32 miles east of the transmitter, during... more

09/16/21

09/16/21

P^2 q - pq^2 - rp^2 q + rpq^2
Math Help Math Calculus

08/10/21

#### MATH HELP, infinite series

serie de n=1 a infinity}(\sqrt{n de)/(n+4)∑sqrt(n)/(n+4)﻿from n = 1 to infinity

08/07/21

#### MATH HELP, differential equation

Find all solutions of the equation y' + 2y = b(x) , (−∞ < x < +∞)where 1 − |x|, se |x| ≤ 1 b(x) = 0, se |x| > 1

08/07/21

#### differential equation

Find the general equationy' = y(y2 − x2 − 1) ⁄ x(y2 − x2 + 1)

08/06/21

#### differential equation

help me with what method I should use to find the general solution, please(3x-y+1)y' = -x+3y+5
Math Help Math Math Calculus

07/27/21

show that lim→(0,0) (|x|^a|x|^b) ⁄ (|x|^c +|x|^d) this does not exist

07/19/21

#### Differential equation

prove that eax cos(bx) and eax sin(bx) would be linearly independent solutions of the equation d2y/dx2 − (α1 + α2)dy/dx + α1α2y = 0when α1 = a + bi and α2 = a − bi, where b≠0.

07/16/21

#### Differential equation

2) Consider the differential equation﻿y' − (2 + xexy) = x2(y' − xexy)(a) Find the explicit general solution.(b) Find the particular solution that passes through the point (0, e-1) and the maximal... more

07/16/21

#### Differential equation

1) Consider x ≠ 0. Solve the differential equation﻿(y6 − 4x6)dx + 3x4y2dy = 0.Determine the particular solution that passes through the point (1, 2).

07/16/21

#### Initial Value Problem (or IVP)

Find the implicit IVP solution y'(x) = - (ex ⁄ ey+yey)y(0) = 0 What can we say about the existence of the explicit solution? If there is, can we say who it is?

#### differential equation

Let y≠0 for the differential equation 2ydy ⁄dx = 5 + 2x − 2y2(a) Find the implied general solution.(b) Find the particular solution that passes through the point (0,√5) and the maximum range... more

05/14/21