Robert J.

Math Math Help Math Question

11/19/12

A theater made a profit of $1,125 from showing a movie. The theater sold 120 tickets and spent $75 on advertising. How much did each ticket cost?

PLEASE ANSWER FAST!

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Equations Logarithms

11/18/12

Solving Log Equation

log(4)+log(x)=log(5)-log(x) (SOLVE) I understand the log(x) is to be a ten and in putting the 4 and five log into the calculator I got extremely long decimals: log(4)= .6020599913 log(5)=... more

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Word Problem

11/18/12

How to solve this word problem with an equation?

During an evening out, Dean paid a cab driver $20. He then spent $25 on dinner and half of his remaining money on a painting. He brought an umbrella fro $23.75 and had $42.15 left. How much money... more

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Math Square Root

11/18/12

what is the square root of 58

math problem please help

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Trigonometry Pre Calculus Trigonometry Indentities

11/18/12

tan^2x-sin^2x=tan^2xsin^2x

The directions say to prove the identity. I understand how these two functions work, but I don't understand how to go through the process of getting from the left side to the right side.

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Math

11/18/12

the product of four consecutive even integers es 1680. what are the four numbers?

four consecutive even entegers

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Factoring Solving Quadratic Equation

11/18/12

sloving quadratic equations by factoring

Find the dimensions of a rectangle that is longer than it is wide whose perimeter is 22ft, and whose area is 18ft2

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Algebra Series

11/17/12

Evaluate the following series

4∑k=0 -6k

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Algebra Sequences Survey Of Mathmatics

11/17/12

find the 3rd term in the sequence: an =(-1)n+15n+1

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Math Pre Algebra Math Common Multiples

11/17/12

What are the first 3 common multiples of 6, 19, and 38?

I am having trouble finding the answer for this, if anyone could help me with this please do help.

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Graphing Pre Cal

11/16/12

What's the transformation of y=(x-3)^2+4?

Which way will the graph move?

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Chemistry

11/15/12

If NI3 explodes according to the following equation, how many moles of NI3 are required to fill a 3L container at STP?

2NI3(solid) --> N2(gas) + 3I2(solid) I am unsure how to solve this problem. If I use the ideal gas equation (without referencing the chemical equation given), I get 0.134 mol NI3. However, I... more

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Chemistry

11/15/12

A gas in a balloon expands from 2L to 3L against 2 atm of pressure, what is the change in temperature relative to the initial temperature?

This was all the information given. Please help me solve this! Thank you!

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Answers •2

Algebra Trinomials

11/15/12

1)b2+8b+7How do I do this problem?

1 is the only number with a parenthis as a part of this problem. I have no idea how to do this problem. Could you explaid step by step this problem I need to do this tonite.

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Answers •2

Common Denominators

11/15/12

what is the commmon denominator for 9, 3 27?

I have got to add 2 2/9 + 6 1/3+ 8 2/27 how do i do this?

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Answers •3

Precalculus Trigonometry Pre Cal

11/15/12

I need help trying to sole tan^2 x =1 where x is more than or equal to 0 but x is less than or equal to pi

this is what it looks like tan^2 x=1 where 0 ≤ x ≤ π

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Answers •5

Parallel Lines Coincident Lines

11/15/12

Parallel or Coincident lines

Which of the following pair of equations form parallel lines? and which form coincident lines? Please explain how you can tell which is which. 1. 2x + 2Y = 90 Parallel or Coincident? Why? y=... more

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Answers •1

Algebra Integrals

11/15/12

how do u deal with the 1 in integral(from 0 to 3) (1+sqrt(9-x^2)dx

how to solve with extra addend 1 in the integral?

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Answers •4

Algebra 2 Word Problem

11/14/12

find an equation that describes the path of a kick that covers a horizontal distance of 20 yards and reaches of maximum height of 9 yards

i really need help with my math. sos

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Math Multiplying

11/13/12

if i have 436 x 67 how do I get the product by subtracting?

My daughter has this problem: Laura found 67 x 436 by multiplying and subtracting. Show how Laura found the product. I showed my daughter the multiplication method and then used division for... more

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Answers •2

Inequalities Word Problem

11/13/12

The cheerleaders are making a rectangular banner for a football game. The length of the banner is 30ft. The cheerleaders can use no more than 96 ft of trim arou

The cheerleaders are making a rectangular banner for a football game. The length of the banner is 30ft. The cheerleaders can use no more than 96 ft of trim around the outside of the banner. Whst... more

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Answers •1

Multiples

11/13/12