Mathematics

can someone help please Solve Y

can someone help please Solve Y

x= 1/11y - 1

confused here, thanks

please solve for y.. linear equation...

MedicLife   1730   3 Replies

BearPro

Find the value of sin theta

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   1148   1 Reply

BearPro

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

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   1254   3 Replies

hellohi

Please help!!

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

MedicLife   1435   5 Replies

MedicLife

College Algebra

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
 

Thanks 

MedicLife   2494   6 Replies

elknoxious

last one...

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   1508   1 Reply

bio_man

Please help with this one

Please help with this one

solve this

-5= 2x - 5

MedicLife   867   2 Replies

MedicLife

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, 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   3401   2 Replies

Muskaan

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

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

Muskaan   1132   N/A

Muskaan

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

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   2573   2 Replies

barathvaj

Math Homework Help!!!

Math Homework Help!!!

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

Thanks!

sholland90   2552   9 Replies

BearPro

Conic Sections: Parabola

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   1112   N/A

BearPro

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 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   3248   1 Reply

BearPro

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

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   1020   1 Reply

BearPro

Triginomotery highschool level.

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   1662   3 Replies

BearPro

A Putnam Exam Challenge

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   1821   1 Reply

BearPro

Statistics?

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   3220   9 Replies

barathvaj

Trigonometry Math Help Needed!

Trigonometry Math Help Needed!

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

sholland90   1349   2 Replies

BearPro

Trigonometry and Trigonometric functions

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   1323   1 Reply

bio_man

-ve logarthirm can b changed? if,how?

-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   2147   9 Replies

barathvaj

Completing the square

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   1295   2 Replies

BearPro

The Quadratic formula

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   2522   6 Replies

BearPro

Find the Height of a Bridge

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   2534   3 Replies

sholland90

Posting guidelines for mathematics questions.

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   3997   N/A

BearPro

Find the weight of the box?

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   2653   6 Replies

sholland90

How long will it take?

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   1120   1 Reply

BearPro

algebra

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   2654   3 Replies

sheyda

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

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   2635   2 Replies

star

function of time related to heating bodies

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   1446   2 Replies

JZDAVEN

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

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_   1416   2 Replies

ken2011

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

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_   3095   3 Replies

rosewllms

dosages

dosages

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

nini07   1565   3 Replies

duddy

Integration

Integration

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

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

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

mikael   3607   3 Replies

mikael

Solving simple questions - HELP!

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_   1636   2 Replies

duddy

more Algebra

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   3821   12 Replies

bio_man

Math algebra - Find the type & number of solutions for each equation

Math algebra - Find the type & number of solutions for each equation

note that x2 means x squared.

find the type & number of solutions for each equation
59.x2-6x= -5
61, x2-245x=-144
63. 3x2-5x+3=0

nini07   2572   7 Replies

nini07