Mathematics

12 years ago

Help

Is 9575.2 les than or greater than 124.1?

obarron2 713 1 Reply

12 years ago

inverse and factor:

How do I find the inverse of f(x)=1/3x^2+2x+2 ?? O_o tyz

Oh and: 32m^4-1250n^4, thanks:)

hellohi 2401 8 Replies

hellohi

12 years ago

can someone help please Solve Y

x= 1/11y - 1

confused here, thanks

please solve for y.. linear equation... Thinking Face

MedicLife 1744 3 Replies

12 years ago

Find the value of sin theta

Suppose that theta is an acute angle and that tan(theta)=5/7. Use a right triangle to find the value of sin(theta).

sholland90 1163 1 Reply

12 years ago

Hi, how do you factor: (x^2+3x)^2 -2(x^2+3x)-8? I need steps fast plz and ty:)

The question says it all:o (gr12, btw)

hellohi 1258 3 Replies

hellohi

12 years ago

Please help!!

can you please help me solve this?

Graph the linear equation...

3x + 5y= 0

I need three points for my graph.

Thanks guys Waving Hand Sign

MedicLife 1446 5 Replies

MedicLife

12 years ago

College Algebra

Hey you all, hope all is well.
What should i expect from a college algebra class? Any tips?
Last time i did a math class was in 1994! lol
Face with Rolling Eyes

Thanks

MedicLife 2508 6 Replies

elknoxious

12 years ago

last one...

Is this right?
x=3

3x-2y=17
3(3) - 2y= 17
9 - 2y= 17
-2y= 17-9
y= 8/-2
y=-4 right???

MedicLife 1516 1 Reply

12 years ago

Please help with this one

solve this

-5= 2x - 5

MedicLife 882 2 Replies

MedicLife

12 years ago

Multiply 14+1/2 +1/4 +1/8 by 16+1/2. Write the answer as an Egyptian number, u

Multiply 14+1/2 +1/4 +1/8 by 16+1/2. Write the answer as an Egyptian
number, using only unit fractions.

Muskaan 3421 2 Replies

Muskaan

12 years ago

How does Euclid's mathematics in the Elements differ from the mathematics of

How does Euclid's mathematics in the Elements differ from the mathematics of Rhind papyrus?

Muskaan 1151 N/A

Muskaan

12 years ago

why we need to take mid point in continous series ?-statistics

In statistics,for calculating general arithmetic mean in continuous series we will take mid points and then we multiply with frequency. .can any one help in understanding the concept behind this method?

I'm just adding a problem to ge

barathvaj 2586 2 Replies

12 years ago

Math Homework Help!!!

Needing help with my math homework: Conic Sections. Any takers?

Thanks!

sholland90 2581 9 Replies

12 years ago

Conic Sections: Parabola

TitleBox

Parabola

here is a Powerpoint presentation on parabolas. Open the ppt in Powerpoint and go through the slideshow. It is very much self explanatory.

BearPro 1123 N/A

12 years ago

State a trigonometric ratio that is equivalent to each of the following trig.

State a trigonometric ratio that is equivalent to each of the following trigonometric ratios: sin 3pi/10, -cos8pi/7

and y=-5sin(x-pi/2)-8 using the cosine function, write an equation that is equvalent to this.

Thanks Foadbear, w

hellohi 3324 1 Reply

12 years ago

Solve the equation: 6cos^2(theta) + sin (theta) - 4 = 0

6cos^2theta+sin theta -4= 0 solve for theta in radians, 0 <= 0 <= 2pi.

Thanks guys.

hellohi 1036 1 Reply

12 years ago

Triginomotery highschool level.

Hi there, just need some quick help. I can do the basic questions in my textbook, but not this one.
The angle x lies in the interval pi/2 and pi, and sin^2 x=8/9. Without a calculator determine the value of cosx/2 using a double angle formulas.

hellohi 1681 3 Replies

12 years ago

A Putnam Exam Challenge

A dart thrown at random, hits a square target. Assuming that any two parts of the target of equal area are equally likely to be hit, find the probability that the point hit is nearer to the center than to any edge. Write your answer in the form (a*sq

zhangx 1843 1 Reply

12 years ago

Statistics?

how to calculate mean,median and standard deviation?

can any one help me?,i've biostatistics in coming semester. s and i've forgot maths after my school days.thanks for those who help.

can any one help me in learning b

barathvaj 3239 9 Replies

12 years ago

Trigonometry Math Help Needed!

Need help with Trig... I attached the sheet. Thanks!!!

sholland90 1368 2 Replies

12 years ago

Trigonometry and Trigonometric functions

TitleBox

Here Is a Presentation on Trigonometry and trigonometric functions.

I have uploaded a Presentation on trigonometry and trigonometric functions.
There are some practice problems too that are solved so

BearPro 1343 1 Reply

12 years ago

-ve logarthirm can b changed? if,how?

In My allied paper, I've Henderson Hassel Batch Equation. .In that There is a step like this

pH = pKa-log[HA]/[A-] Which is turned to this pH = pKa+log[HA]/[A-].
Can Any one clear this? there is any logarthirmic formula to Solve

barathvaj 2171 9 Replies

12 years ago

Completing the square

TitleBox

I have uploaded a slideshow for how to complete a square. It is very useful to learn the concept of completing the squares.

here is a slide on how to complete a square. You can either download the sil

BearPro 1309 2 Replies

12 years ago

The Quadratic formula

A function defined by f(x) = Anxn + An-1xn-1 + An-2xn-2+................................+ A1x1 + A0

is called a polynomial of degree n where

BearPro 2543 6 Replies

12 years ago

Find the Height of a Bridge

A bridge is built in the shape of a parabolic arch. The bridge has a span of 196 feet and a maximum height of 30 feet. Find the height of the arch at 15 feet from its center. Show all of your work.

Help? Thanks!

sholland90 2557 3 Replies

sholland90

12 years ago

Posting guidelines for mathematics questions.

Hi,
Post any of your maths queries that you have in this board.

Mark the topic as solved once you have got the correct answer/explanation for it. It helps other people browsing the forums to know that the particular question is solved

BearPro 4023 N/A

12 years ago

Find the weight of the box?

Two people are carrying a box. One person exerts a force of 135 pounds at an angle of 47.7 degrees with the horizontal. The other person exerts a force of 95 pounds at an angle of 50.9 degrees. Find the weight of the box. Show all of your work and ex

sholland90 2681 6 Replies

sholland90

12 years ago

How long will it take?

Find out how long it takes a $3400 investment to double if it is invested at 7% compounded semiannually. Round to the nearest tenth of a year.
Use the formula:
A=P(1+r/n)^nt
and show all of your work.

Please help. Thanks!

sholland90 1141 1 Reply

12 years ago

algebra

NOTE THAT ALL x2 means x squared!!!

write each qudratic function in vertex form.
13. f(x)=x2 is vertically stretched by a factor 2 and translated 4 untits right to create g.

find the roots of each equation by factoring

nini07 2677 3 Replies

sheyda

12 years ago

Concentric circles form when a stone is dropped into a pool of water.

14) Concentric circles form when a stone is dropped into a pool of water.

a) What is the average rate of change in the area of one circle with respect to the radius as the radius grows from 0 cm to 100 cm? ( I did this one, the answer is 1

hellohi 2665 2 Replies

star

12 years ago

function of time related to heating bodies

im doing work on how fast large and small animals can gain heat and need to come up with a funtion. here is what i have so far
this assuming my animal is made of cubes bahahah
6u^2 is the surface area right?
u^3 is volume ehhhh

zdaven 1466 2 Replies

JZDAVEN

12 years ago

What is 0.9(2x-8) = 4-(x+5)?

What is 0.9(2x-8)=4-(x+5)?
how do i solve this equation

Jermain_ 1438 2 Replies

ken2011

12 years ago

Solve the following equation or inequality for the unknown variable. Round answe

Solve the following equation or inequality for the unknown variable. Round answer to two decimal places if necessary.

10 – x < 4

Jermain_ 3112 3 Replies

rosewllms

12 years ago

dosages

How many ML in 1 Ounce?
Haw many ML in 1 Teaspoon?

nini07 1575 3 Replies

duddy

12 years ago

Integration

I need to find the integral of cot6(x) dx

${\int_{}cot^6(x) dx}$

Also, 2x * tan3(x2) * (secx2)-1/2

mikael 3620 3 Replies

mikael

13 years ago

Solving simple questions - HELP!

3n+1/2n = 42 solution=
3m-1+m+6 = 2-9 solution=
3(1+2y) = y+2y+4y solution=
8-12x = 6*(1+x) solution=

Jermain_ 1648 2 Replies

duddy

13 years ago

more Algebra

Rewrite each polynomial in standard form. Then identify the leading coefficient, degree, and number of terms. Name the polynomial.

5. 4x^2-3x^3+6x+7

7. 1-11x+9x^2

Add or subtract. Write your answer in standard form.

nini07 3833 12 Replies