5,643 Answered Questions for the topic mathematics

Mathematics

07/04/15

What is the area of quadrilateral?

The incircle of a quadrilateral of preimeter 2P has radius r. What is the area of quadrilateral. 
Mathematics

07/04/15

What percentage of surface area of each of new solids is not painted blue.

A colourless cube is painted blueand then cut parallel to form two rectangle solids of equal volume. What percentage of surface area of each of new solids is not painted blue. 
Mathematics

07/04/15

If there are 6 routes in between town A & town B and 3 routes for B to C. Then total number of ways from A to C

If there are 6 routes in between town A & town B and 3 routes for B to C. Then total number of ways from A to C
Mathematics

07/02/15

form a third-degree polynomial function with real coefficents such that -9 + i and -8 are zeros

 form a third degree polyomial function with real coefficients such that -9 + i and -8 are zeros
Mathematics Science Chemistry

06/28/15

How do you calculate the conversion of 200mLs of Dimethysulfoxide (DMSO) to grams?

I calculated 220.08 grams using the equation "mass = (volume)(density)",but this does not seem correct. Thank you.

perfect square trinomial to square of a binomial

x^211x+    x^2 -15x+   s^2- 2/3s +   h^2-3/4h+ 
Mathematics Math Precalculus

06/17/15

How do I solve this nonlinear inequality?

1/x+3 + 1/x+4 is less than or equal to 0   Picture of the problem   http://i.imgur.com/pvojkPT.png   Edit: The answer is (-infinity, -4) U [-7/2, -3)   How do I get that answer?
Mathematics Math Precalculus

06/16/15

Rational function y = r(x) question

If the rational function y = r(x) has the vertical asymptote x = 2, then as x → 2+, either y → *insert number here* or y → *insert number here* What does this mean? How do I solve... more
Mathematics Math Precalculus Functions

06/15/15

How do I find the following functions

From   f(x) = 4x − 3, g(x) = 2 − x   (a) (f + g)(x) = (b) (f − g)(x) = (c) (fg)(x) = (d) (f/g)(x) =   And What is the domain of f/g?
Mathematics Math Precalculus Functions

06/15/15

Use the function to evaluate the indicated expressions and simplify.

f(x) = x + 8     1. f(x2) =   2. (f(x))2 =

06/15/15

How do you reduce the product of a quadratic formula

The question is Find all real solutions of the quadratic equation  2y2 − 12y + 11 = 0   After using the quadratic formula I got.   12 + - √ 144 - (4)*(2)*(11) ------------------------------  ... more
Mathematics Math

06/14/15

Use the Quadratic Formula to solve the equation 12x - 9x2 = -2

What are the steps after to solve this equation?   -9x2 + 12x + 2 = 0     -b+- √b2 - 4ac --------------       2a   so   -12 +- √144 - 4*(-9)*(2) --------------------------          ... more
Mathematics Math Precalculus Squares

06/14/15

How does the square root of 20 equal plus or minus 2 the square root of 5?

How was that answer gotten?   √20 = + - 2√5
Mathematics

06/12/15

Round 10.98 to the nearest cent

Round 10.98 to the nearest cent  
Mathematics Math Pre Calculus Simplify

06/10/15

How do I answer these questions involving square roots?

1) Simplify the expression √32 + √98   2) Solve the equation by factoring. (2x-13)^2 = 8   3) Find the domain of the expression. √x^2 - 36 (the whole thing is under the square root symbol)

06/10/15

Find a function whose graph is a parabola with this vertex and passes through this point

Parabola with vertex (7,8) that passes through the point (6,-9)
Mathematics Math Question

06/02/15

Damon buys a chandelier during the sale. If the original price was $775, how much does Damon pay?

Sale! 40% off! Damon buys a chandelier during the sale. If the original price was $775, how much does Damon pay?
Mathematics

05/28/15

zalmon walks 3/4 of a mile in 3/10 of a hour. What is his speed in miles per hour?

.225 miles per hour 2.3 miles per hour 2.5 miles per hour 2.6 miles per hour
Mathematics

05/27/15

if you have a cylinder 5 feet in diameter and 20 feet long, and you scale down the cylinder to 1 foot in diameter, how long is the cylinder?

I'm having a hard time wrapping my head around this one, math isn't my strongest suit.
Mathematics

05/19/15

Person a can paint a fence in 8.2 hours. Person b can paint it in 8.8. How long would it take if they worked together?

Simple math question that I need help with. 
Mathematics

05/18/15

Helen earns 7.50 an hour at her jobis paid 1 and 1/2 times her regular salary for overtime hours worked .one week her gross pay was 352.50 how many o

Helen earns 7.50 an hour at her jobis paid 1 and 1/2 times her regular salary for overtime hours worked .one week her gross pay was 352.50 how many overtime hours did she work that week ?
Mathematics

05/17/15

if suresh sells an article at a price of rs 9300,he incures a loss of rs 3100.at what price should he shell the article so that he gets a profit of 25%.

if suresh sells an article at a price of rs 9300,he incures a loss of rs 3100.at what price should he shell the article so that he gets a profit of 25%.
Mathematics

05/13/15

A circular mirror has a diameter of 20 inches. What is the area, in square inches, of the mirror?

A. 400 B.100 C. 10 D.40 please help me n show me how u got the answer.
Mathematics

05/07/15

How can you write this explicit function?

Let the probability that there are no heads recorded in 'n' tosses of a coin be p(n). Write p(n) as a function of n explicitly. Define any other parameters used. Show that limit n approaching... more

Can someone help me with this statistic question?

I have the following problem and can't figure it out. A mileage test is conducted for a new car model, the “Pizzazz.” Thirty random selected Pizzazzes are driven for a month and the mileage is... more

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.