Saturday

November 28, 2015
Total # Posts: 29

**Calculus**

How do you integrate (x-r)^2 (1/r) (e^(-x/r)) from the interval negative infinity to positive infinity?
*November 27, 2015*

**Calculus**

Integrate e^(-t/r) WITH RESPECT TO dt?
*November 23, 2015*

**Calculus**

How do you integrate e^(-t/r) dt?
*November 22, 2015*

**Calculus**

How do you integrate e^(-t/r)?
*November 22, 2015*

**Calculus**

Integrate x/(6x-5) dx The answer is 1/6 x + 5/36 ln abs (36x-30) + C... But I don't understand why it is 5/36 times ln.. I thought that when you factored out the 5 you would get 5 times ln abs (36x-30)..
*November 21, 2015*

**Calculus**

Calculate integral [0, infinity) xe^(-x) dx
*November 21, 2015*

**Chemistry-Dr.Bob**

A solution is prepared by mixing 50.0mL of 0.001 M HCl and 10.0 mL of 0.200 M NaCl. What is the molarity of chloride ions in this solution? My work: (0.001 mol/L)((0.05 L)= 0.005 mol HCl (0.200 mol/L)(0.01 L)= 0.002 mol NaCl 0.005+0.002=0.007 mol of chloride ions 0.007mol/(0....
*November 20, 2015*

**Calculus**

Integral sign 8x/(x-1) dx Is it 8x+8ln abs (x-1)+C ?
*November 19, 2015*

**Calculus**

Evaluate the integral. Problem#1 Integral sign 4dx/[(x+3)(x^2 +3x) Does it matter where A, B, and C is placed over. Is there a particular order? Is it ..... (A/x)+(B/(x+3))+(c/(x+3)^2=4 Or ... (A/x+3)+(B/x)+(C/(x+3)^2)=4 I am confused because I get different answers each time ...
*November 19, 2015*

**Calculus**

Evaluate using long division. The integral of x/6x-5 dx How do I divide this?
*November 19, 2015*

**math**

Each side of the shaded square is 1 unit. What is the length, width, and area of the figure?
*February 4, 2013*

**math**

The perimeter of a rectangle is 38 centimeters. The length is 7.5 centimeters. What is the width?
*February 4, 2013*

**math**

The area of a rectangle is 45 square inches. One dimension is 5 inches. What is the perimeter?
*February 4, 2013*

**math**

i don't know
*October 20, 2012*

**math**

Jenelle has a blue jug and a red jug, both containing water. The blue jug has 4 gallons and 1 quart of water in it, and the red jug has 2 gallons and 2 quarts of water in it. How much water is in both jugs?
*November 16, 2011*

**math**

The answer is 8 feet remaining. 11-3=8
*November 14, 2011*

**math**

A roll of fabric was 132 inches long. A customer bought 3 feet of the fabric. How many feet of fabric were remaining?
*November 14, 2011*

**math**

6lbs,2oz
*November 14, 2011*

**math**

Holly ordered 2 pounds and 9 ounces of roast beef and 3 pounds and 9 ounces of ham. How much meat did Holly order?
*November 14, 2011*

**math**

add the pounds then add the ounces
*November 10, 2011*

**math**

Holly ordered 3 pounds and 11 ounces of roast beef and 4 pounds and 10 ounces of ham. How much meat did Holly order?
*November 10, 2011*

**math**

Jennie and Millie are sister gorillas. Jennie is 57 kilograms and 663 grams,and Millie is 113 kilograms and 181 grams. How much do the sister gorillas weigh together?
*November 10, 2011*

**math**

60*7=420 420+38=458
*November 10, 2011*

**math**

Levi worked in his neighbor's yard for 7 hours trimming the trees. After trimming, he bagged up the trimmings in 38 minutes. How many minutes did he work in the yard altogether?
*November 10, 2011*

**math**

14, 522
*November 10, 2011*

**math**

A sack of sand measures 21 kilograms and 714 grams,and a sack of yard clippings measures 7 kilograms and 192 grams. How much more does the sack of sand measure than the sack of yard clippings?
*November 10, 2011*

**math**

A roll of fabric was 144 inches long. A customer bought 2 feet of the fabric. How many feet of fabric were remaining?
*November 10, 2011*

**finding area**

Find the area of each square given s = 3.5yd
*March 24, 2011*

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