Mathematics

Taking an Online Math Course? We Can Help

Taking an Online Math Course? We Can Help

Nearly every field of study requires math in some way or another. Whether it be in business, nursing, or agriculture, let’s face it – mathematics is found everywhere.

But we know the strain that this can cause you, especially when you have

Biology Forums   823   1 Reply

INEEDHELPFAST

[Software] - Virtual TI Calculator Software (TI-83, 92, etc).

[Software] - Virtual TI Calculator Software (TI-83, 92, etc).

Very rare software, hope you'll enjoy it.

duddy   2949   2 Replies

LarryMiz

[Notes] - Amazing Trigonometric Identities Cheat-sheet

[Notes] - Amazing Trigonometric Identities Cheat-sheet

Hope this helps.

12

padre   4259   15 Replies

krispykreme36

How does one do systems of quadratics?

How does one do systems of quadratics?

I'm pretty lost. Here's an example problem. Please show and explain steps. Thank you.

4x^2+9y^2=72
x-y^2=-1

!JRon@n   481   2 Replies

MikeLake

Precalc help? graphing inequality?

Precalc help? graphing inequality?

x^2-1 is less than or equal to the absolute value of x + 1. so it basically looks like this:

x^2-1 (less than or equal to) lx+1l

i hate precalculus. i'm a sophomore for gods sake.

!JRon@n   574   3 Replies

padre

Why do so many physicists say that the linear algebra is the most important branch of math to physics?

Why do so many physicists say that the linear algebra is the most important branch of math to physics?

In my calculus class, I can see applications in all most all of the concepts we learn to physics. In linear algebra, I have yet to see even one application to physics aside from simple vector geometry, which most people know without ever taking physi

!JRon@n   884   1 Reply

lfishman1

Help with solving a quadratic equation for a given value?

Help with solving a quadratic equation for a given value?

The equation given is d = -16t^2 - 2t + 445

We're supposed to solve for d=440. Obviously, you substitute so you get 440 = -16t^2-2t+445.
I've tried several methods to solve this and just can't do it.

#8   588   1 Reply

BearPro

F(x) = 2x2 - 3 Evaluate: f(f-1(-1))

F(x) = 2x2 - 3 Evaluate: f(f-1(-1))

f(x) = 2x2 - 3



Evaluate: f(f-1(-1))



a. -1
b. 0
c. 1
d. There is not enough information to solve this problem.

#8   501   4 Replies

datha

Evaluate the expression can solve?

Evaluate the expression can solve?

Evaluate the expression and write the result in the form a + bi.
(2/3 + 12i)(1/2 + 25i)

Evaluate the expression and write the result in the form a + bi.
1/(2-5i) - 1/(6+6i)

thanks, any answer will be given points, you don't have to answer both,
b

#8   493   3 Replies

Tonbon1221

How to solve this substitution problem? (Algebra)?

How to solve this substitution problem? (Algebra)?

I'm really not getting this, so can somebody go step-by-step on how to figure it out?

2m + n = 1
m - n = 8

Thanks in advance!(:

$abood$   485   4 Replies

MikeLake

College Algebra Homework on elimination and back-substitution, need help please?

College Algebra Homework on elimination and back-substitution, need help please?

I am having trouble solving problems using elimination and back-substitution. I do not understand how to solve them. For example this is one I am stuck on:
x+3y+2z=16
-2y+3z=1
8y-13z=-7

$abood$   391   2 Replies

Datnigerian

What do curly brackets mean in inequalities?

What do curly brackets mean in inequalities?

{ 2x=0

There is no two curly brackets, there is only one big one that wraps both of the inequalities. What does it mean?

$abood$   943   3 Replies

fivegrays

find the equation of this cubic function?

find the equation of this cubic function?

the x-intercepts of a cubic function are -2,1 and 3. If the y-intercept is 18, what is the equation of the cubic function?

$abood$   355   1 Reply

tony365

How to find the zeros using vertex form?

How to find the zeros using vertex form?

I get stuck once I've got the equation in vertex form!

 Write f(x) in vertex form and after you find this form, use it to find the zeros.

f(x)= -x^2 + 3x + 10
Please could you explain how to find the domain and range?

$abood$   418   6 Replies

rkc4yc

How to solve x=2e^t, y=1+e^t; t is greater than or equal to 10?

How to solve x=2e^t, y=1+e^t; t is greater than or equal to 10?

How do you solve:
x=2e^t, y=1+e^t; t is greater than or equal to 10
Step by step please.
Thanks in Advance!
Peace & Love!

$abood$   291   1 Reply

irina

Please help me! How to find horizontal and vertical asymptotes in a more easier way?

Please help me! How to find horizontal and vertical asymptotes in a more easier way?

I learned this topic in differentiation. But it's difficult to find the asymptotes. Hopes everyone can help me. thanks.
I learned this topic in differentiation. But it's difficult to find the asymptotes. Hopes everyone can help me. thanks.

Thanks fo

$abood$   213   1 Reply

meow24cat

How to determine which percentile rank is more accurate?

How to determine which percentile rank is more accurate?

math problem: the SAT company says a 680 is the 93rd percentile but I determined with my stats data mean of 501 and stand dev. of 112 that it would be 94th percentile. How do I determine which one is more accurate? Is there  Formula?

$abood$   323   1 Reply

leggomyeggo33

How do you solve this integrated algebra problem?

How do you solve this integrated algebra problem?

the problem is 3 times the square root of 20(2 times the square root of 5 - 7). In simplest radical form. I know the answer is 60- 42 times the square root of 5 but I need to know how to get it. please help.

$abood$   342   2 Replies

leebsn

How do i rearrange the inverse of a power equation?

How do i rearrange the inverse of a power equation?

Write the inverse of y=kx^n
                                  x=ky^n
i understand that but how do i rearrange the second equation to make y the subject?

$abood$   317   5 Replies

rishi

Can somebody help me solve by finding the objective function?

Can somebody help me solve by finding the objective function?

The objective function is:
Z=6x+10y
Constraints:
x>0, y>0
x+y,11
x+2y

$amanthaP24   250   1 Reply

Tonbon1221

what is the factorial of a number of the form a/b for example how much is 2.4! ?????

what is the factorial of a number of the form a/b for example how much is 2.4! ?????

what is the factorial of a number of the form a/b for example how much is 2.4! ??

$amanthaP24   549   11 Replies

smithcarla275

Precalculus assistance needed?

Precalculus assistance needed?

If R(x) is a rational function of the form R x = P(x)/Q(x) , then what are the restrictions on P(x) and Q(x)?
a. There are no restrictions on P(x) and Q(x)
b. The only restrictions are that P(x) and Q(x) must both be polynomials
c. Both P(x) and Q(x)

$amanthaP24   398   2 Replies

mhe34

How many ordered pairs of positive integers (r,s), subject to 1000?r,s?2000, are there such that if r red Chri?

How many ordered pairs of positive integers (r,s), subject to 1000?r,s?2000, are there such that if r red Chri?

How many ordered pairs of positive integers (r,s), subject to 1000?r,s?2000, are there such that if r red Christmas balls and s silver Christmas balls are randomly placed in a row, then the probability that the 2 Christmas balls, which are located at

(catalina)   424   1 Reply

nrsntraining

Create an example of a real-life word problem which can be solved using algebraic inequalities?

Create an example of a real-life word problem which can be solved using algebraic inequalities?

Create an example of a real-life word problem which can be solved using algebraic inequalities. Write the problem, and then solve the problem. Show the algebraic inequalities that are involved including all necessary steps taken to get the answer.

-Saint-   319   1 Reply

iiHana

How can I decide whether a digitized signal is smooth?

How can I decide whether a digitized signal is smooth?

For some functions, such as the absolute value function, the values are continuous, but there is a point (or points) where the derivative does not exist because the slope on the right is different from the slope on the left.  I can use this criteria

01blu_gsr   367   2 Replies

Bulldogs

How do i find the function value of this!?!?

How do i find the function value of this!?!?

argh im getting so frustrated with this problem..I just dont understand it.  If someone can answer this problem and explain how ill give 5 stars!

Find the function value of:
g(x) = 2x + 5  if g(x) = g(a) + 2

All i know is that the answer is 48.  I

01blu_gsr   306   1 Reply

Bullet

Can you help me with these problems i would greatly appreciate it?

Can you help me with these problems i would greatly appreciate it?

We are doing solving equations with variables on both sides and i don't understand it. I will put up a problem and can you show the steps in general.
 7m=9(m+4)

09mohamf   232   2 Replies

ijhsj

How do i find the conditions so that the following linear system is consistent?

How do i find the conditions so that the following linear system is consistent?

Find conditions on a,b and c so that the following system is consistent :

    x1+x2+2x3 = a
    x1+x3 = b
    2x1 + x2+3x3 = c

In particular if a = 1 and b = 2, find the value for c that makes the linear system consistent.

09mohamf   370   1 Reply

8kjw3

What is 2-1=?

What is 2-1=?

Please help!

Post Merge: 10 years ago

1

0adrian10   1330   9 Replies

johnjohnjohn

How to roder functions from fastest growing to slowest or the other way?

How to roder functions from fastest growing to slowest or the other way?

Order from fastest growing function to slowest as x----> infinity

a)  e^4x
b) x^4/x
c) e^x/8
d) (lnx)^4x

Could you plz explain  how to determine which function is fastest or slowest growing?

Thanks.

1 jersey girl   441   1 Reply

leeamac

What does representing a function as a power series actually mean ?

What does representing a function as a power series actually mean ?

Im guessing its a method of analysing the divergence and convergence of a function for certain values, is this correct ?
so basically you can use it the representation to approximate the function as long as your within the interval of convergence.

10550156   187   2 Replies

bumrusch

Problems where the value of a trig function is given then they ask you to find others from that?

Problems where the value of a trig function is given then they ask you to find others from that?

I'm having a bit of trouble understanding how it's possible to solve for other trig functions given the value of one. For example, 'given that cot x =-squareroot3 find the exact value of sin x or cos x', how would I do a problem like this?

10550156   298   1 Reply

irina

How to find an Inverse of a function?

How to find an Inverse of a function?

The question says to "graph each absolute- value function. Then graph the inverse on the same coordinate plane."

I know how to graph, but how do you get the inverse?

10550156   450   2 Replies

01blu_gsr

Symbolic way to solve a linear equation?

Symbolic way to solve a linear equation?

Describe a symbolic method for solving a linear equation. Use an example to illustrate the method.

Help please!

10kwong   703   N/A

10kwong

Write a linear equation to model the situation?

Write a linear equation to model the situation?

Write a linear equation to model the situation. Use unit analysis to check your model.

You borrow $40 from your sister. To repay the loan, you pay her $5 a week.

This is probably extremely simple, but can someone explain this to me please?

10tlala   344   1 Reply

backous15

A salesperson drives 74.9 miles on Monday, 59.8 on Tuesday, 65.5 on Wednesday, and 86.4 on Thursday. ...

A salesperson drives 74.9 miles on Monday, 59.8 on Tuesday, 65.5 on Wednesday, and 86.4 on Thursday. ...

A salesperson drives 74.9 miles on Monday, 59.8 on Tuesday, 65.5 on Wednesday, and 86.4 on Thursday. On Friday the salesperson stayed home. What was the total distance traveled last week?

123lol456   42   1 Reply

moqamoqa

Seaside Patio Furniture pays regular hourly rates for the first 40 hours worked and time and a half ...

Seaside Patio Furniture pays regular hourly rates for the first 40 hours worked and time and a half ...

[html]Seaside Patio Furniture pays regular hourly rates for the first 40 hours worked and time and a half thereafter. The weekly payroll record shown below gives the total hours worked and hourly rates for the three employees. Fill in the remaining i

123lol456   43   1 Reply

RobnHood

Apex ElectronicsApex Electronics uses the straight-line method of depreciation. Electronic equipment ...

Apex ElectronicsApex Electronics uses the straight-line method of depreciation. Electronic equipment ...

[html]Apex ElectronicsApex Electronics uses the straight-line method of depreciation. Electronic equipment costing $112,500 has an estimated life of ten years and an estimated scrap value of $7,250.
Refer to Apex Electronics.

123lol456   96   1 Reply

someonespecial

Madison found a sweater at a suburban discount mall for 25% less than at a store in downtown ...

Madison found a sweater at a suburban discount mall for 25% less than at a store in downtown ...

[html]Madison found a sweater at a suburban discount mall for 25% less than at a store in downtown Toronto. What percentage more would she have paid if she bought the sweater in downtown Toronto? Calculate the answer accurate to the nearest 0.01%.[/h

123lol456   43   1 Reply

dmahr

A college student wishes to compare tuition fee increases during the period 2012 to 2022 to the ...

A college student wishes to compare tuition fee increases during the period 2012 to 2022 to the ...

[html]A college student wishes to compare tuition fee increases during the period 2012 to 2022 to the general increase in the cost of living. Tuition increased from $350 per course in the 2012/2013 academic year to $495 per course in the 2022/2023

123lol456   29   1 Reply

stanka82