Mark M.

I’m thinking of a ten-digit integer whose digits are all distinct. It happens that the number formed by the first n of them is divisible by n for each n from 1 to 10. What is my number?

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Other

03/14/16

A squared-15a+56=0

a2-15a+56=0

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Extending The Number System

03/14/16

write the radical 2x with rational exponents

A. (2x) 1/2 B. 4x^2 C.2x^2 D.2x

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Word Problem

03/14/16

An airplane flies with a constant speed of 980 km/h. How far can it travel in 3 hours?

Word problem

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Math

03/14/16

2 cos^2 x - cos x = 0

find the exact solutions in the interval 0, 2pi

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Full Answer

03/13/16

how would you solve the following eqation by factoring? X - 18 + (24 - 3) = 72

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Word Problem

03/13/16

Anna is covering the circular pool with a heavy-duty cover for the winter. The pool has a diameter of 24 feet. The cover extends 12 inches Beyond the Edge of the pool and a rope runs along the edge... more

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Word Problems

03/13/16

Word Problems Linear Equations

Determine the linear equation that models this problem. The cost of a school banquet is $90 plus $12 for each person attending. What is the cost for 55 people? a.y= 12x-90; $570 b. y= 90x-12;... more

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Finding Quadratic

03/13/16

Finding Quadratic problems

Farmer Ed has 2,000 meters of fencing, and wants to enclose a rectangular plot that borders on a river. If Farmer Ed does not fence the side along the river what is the largest area that can be... more

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Other

03/13/16

Find the expression

0.5(x-10)+o.7(x+20)=57

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Math Help For College

03/12/16

um could someone help me out with this problem?

Multiply or divide as indicated. Be sure to reduce all answers to lowest terms. a2+5a/3a X 4a2/a2-4a please help me understand

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Quadratic Equation

03/12/16

How to solve this quadratic equation ?

Hi, I'm having a hard time solving this. I keep getting the wrong answer : (x+2)2 - 5(x+3) +6=0

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Quadratic Radical

03/12/16

How to solve quadratic equation with a radical ?

Hi, the equation I need help with is : √2x2 — 3x + √2 =0

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Geometry

03/10/16

Identify the type of transformation given the rule H(x, y) = (x + 3, y).

transformations in geometry

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Algebra Help

03/10/16

Alegra 2 problem?

What is the max number of turning points in the graph of P(x) = x³ + 3x?Question options: a) 1 b) 2 c) 3 d) 4

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Math Help For College

03/09/16

could someone help with rationals?

Indicate any restrictions on the variable in the following rational expression, then reduce the rational expression to lowest terms.If it is already in lowest terms, enter the expression in the... more

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Geometry Word Problems

03/09/16

Geometry Word Problem

You are making hand shadows on a wall using a flashlight. You hold yourhand 1 foot from the flashlight and 5 feet from the wall. Your hand is parallelto the wall. If the measure from your thumb to... more

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Math Help Math Word Problem

03/09/16

How many pages need to be printed for the cost of the two printers to be the same?

Printer A cost $200/ prints $.04 per page.Printer B cost $300 prints $.01 per page. How many pages need to be printed for the cost of the two printers to be the same?

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Other

03/09/16

Christmas package

On a Christmas package Audrey needs to use only 40-cent stamps and 16-cent stamps, how many of each type of stamp must she use to mail a package costing $5.76 in postage?

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Other

03/09/16

what is the side length?

the side lengths of a triangular shade sail are 3.6m, 3.6m and 4.8m. a landscape architect is making a scale model. if the two equal sides in the model are 9 cm, what is the lentagh of the other side? more

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Trigonometry

03/09/16

A ramp forms a 20° angle with the ground. The upper end of the ramp is 5 feet above ground level. To the nearest tenth of a foot, how long is the ramp?

a.1.7 feet b.13.7 ft c.5.3 ft d.14.6 ft b is not the answer

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Find the dimensions of the rectangular corral producing the greatest enclosed area given 320 feet of fencing

If T is the midpoint of SU what are ST, TU, and SU?

The population of a town with 15000 people is decreasing at a rate of 1.5% per year.

You want to buy only photos that are similar rectangles.Which of the photo sizes should you buy?45:57:812:1114:18*27