Wednesday

November 25, 2015
Total # Posts: 59

**Math - Logarithms**

Could you please explain why lne^2 = 2, e^lne^2 = e^2, e^lin2 = 2, and lne^e = e ? Thank you.
*November 13, 2015*

**Math - Logarithms**

Write the following expression as a single logarithm: 4ln2x + ln(6/x) - 2ln2x So I did... 4ln2x + ln(6/x) - 2ln2x = ln2x^4 + ln(6/x) - ln2x^2 = ln16x^4 + ln(6/x) - ln4x^2 = ln16x^(2)(2) + ln(6/x) - ln4x^2 = 2ln16x^2 + ln6 - lnx - ln4x^2 If my calculations so far are correct, ...
*November 13, 2015*

**Chemistry - Energy: Phase Changes**

Thank you. Is there an official formula for what you came up with or some sort of rearranged formula?
*November 12, 2015*

**Chemistry - Energy: Phase Changes**

An ice cube at 0 degrees Celsius is placed in a pouch and dropped into 30.0g of water in a cup at 45 degrees Celsius. The ice cube melts and the resulting water warms up. The lowest temperature reached by the 30.0g of water in the cup was 20.0 degrees Celsius. What was the ...
*November 12, 2015*

**Chemistry - Energy: Phase Changes**

If 13.4 kJ of energy are added to 1.00 kg of ice at 0 degrees Celsius, how much water at 0 degrees Celsius is produced? How much ice is left? The molar heat of melting is 6.01 kJ/mol. So... 6.01 kJ -> 1 mol (6.01 kJ of energy can melt 1 mole of ice) Then... 13.4 kJ -> x...
*November 12, 2015*

**Algebra 1**

You're welcome
*November 7, 2015*

**Algebra 1**

I think it's actually c, since: y = 1.375x = 1.375(8) = 11 y = 1.375(16) = 22 y = 1.375(24) = 33
*November 7, 2015*

**Math**

The answers to questions 1, 2, 3, 6, 7, 8 are most likely correct.
*November 7, 2015*

**Logarithmic Function**

No, wait, actually the 2 does not apply to the 2log_2 by itself. Rather, the "2(x+2)" applies to the log. I was so confused, sorry. So I'm going to assume that the answer "2" is correct and the "4" on my answer sheet is incorrect.
*November 6, 2015*

**Logarithmic Function**

Thank you. I actaully just figured out that I indeed had miscalculated the equation. It was: y = 2log_2(2) (x+2)-4 Therefore I should solve the "log" part first: 1) y = 2log_2(2) (2+2)-4 2) y = 2 (2+2)-4 3) y = 2 (4)-4 4) y = 8-4 5) y = 4 In other words, the number &...
*November 6, 2015*

**Logarithmic Function**

Could you please verify and calculate the following logarithmic equation: y = 2log_2(2)(x+2)-4 , in which x=2. So the equation would become: y = 2log_2(2)(2+2)-4 Solving... y = 2log_2(2)(4)-4 y = 2log_2(8)-4 y = 2(3)-4 y = 6-4 y = 2 So I got y=2, however my answer sheet and my...
*November 6, 2015*

**Math**

Use the distance formula, along with the given points: d= √(x2-x1)^2+(y2-y1)^2 d= √(-1+3)^2+(1-2)^2 d= √5
*November 3, 2015*

**Heating different volumes of water**

The amount of thermal energy, the number of water particles, or the speed of the particles
*November 3, 2015*

**Heating different volumes of water**

Is there a difference between heating 50 mL of water to a given temperature, and heating 100 mL of water to the same given temperature but then removing 50 mL?
*November 3, 2015*

**French Expressions**

Does anybody know what the following French expression means: "Je changeais de plan de carrière comme on change de sous-vêtements."
*November 1, 2015*

**Physics**

Two light rays, one red and one violet, encounter a glass surface. If the index of refraction of the red light ray = 1.52, the index of refraction of the violet light ray = 1.54, and the angle of incidence = 30 degrees, calculate the angle of refraction of each colour of light...
*October 30, 2015*

**Physics**

If a scuba diver is underwater and looks up, he or she will see a round "hole" directly above him or her at the surface of the water. The rest of the surface will look like a mirror. Explain this phenomenon.
*October 30, 2015*

**Physics**

Does total internal reflection in an aquarium occur at the separation of the water and the glass or at the boundary of the glass and the water?
*October 30, 2015*

**science**

1) The force of gravity on the moon is 1/6 the force of gravity on earth. If you had a 1 kg box of cereal on earth which had a weight of 2.4 N, what would its mass be on the moon? why? 2) what is the volume of a textbook with dimensions 21.3 cm, 27.5 cm, 2.9 cm? please help me...
*February 9, 2015*

**Math.**

i don't believe those are right...
*January 28, 2015*

**social studies**

asbdd
*November 19, 2014*

**Math**

required*** Test please excuse my grammar error.
*September 19, 2014*

**Math**

Check answer PLEASE!! Kevin wants to calculate the value of the expression below. -17 + 3 Which shows an equivalent way kevin could write this expression? (A.) -(17 + 3) B. -(17 - 3) C. (-3 + 17) D. (-3 - 17) Please help as soon as possible!! I have no one to help me and i don...
*September 19, 2014*

**math**

What is the answer bruh..... You can't just leave a question without a freaking answer dudes
*May 23, 2014*

**english**

Help us
*October 23, 2013*

**english**

Umm..
*February 24, 2013*

**chemistry**

Calculate the molarity of each ion in 0.500 M (NH4)3PO4. Enter a zero for an ion that doesn't occur in the compound.
*January 14, 2013*

**social studies**

Which of the following is not a response to the Stamp Act?
*December 4, 2012*

**algebra**

12 + 24 (10 - 4) (9 - 7) - 17
*October 24, 2012*

**Chemistry**

what is the mass in grams of 1.32 x 10^20 uranium atoms
*October 16, 2012*

**8th grade math**

This is actually 8th grade math btw and answers 1. C 2. B 3. A 4. D 5. C 5/5 100%
*September 26, 2012*

**Math**

^^Kelly is correct: 1. D 2. A 3. C 4. B
*September 13, 2012*

**pre-calculus**

If San Francisco Giants homerun king, Barry Bonds, hit a baseball due west with a speed of 50.0 m/s, and the ball encountered a wind that blew it north at 5.00 m/s, what was the resultant velocity of the baseball?
*May 31, 2012*

**Trigonometry**

Given log 3= x and log 5 =y Express radical 3/5 in terms of x and y. 1) 1/2x-y 2) 1/2(x-y) 3) 1/2xy 4) 2(x-y)
*February 11, 2012*

**english**

what is song about determintation
*February 10, 2012*

**Science**

A wave geneerantor produces 16.0 pulses in 4.00s . What is the frequence ?
*November 6, 2011*

**math**

STUFU
*March 30, 2011*

**Math**

I got 93
*September 22, 2010*

**alg**

88,872
*July 12, 2010*

**alg**

ms sue i got 8400
*July 12, 2010*

**alg**

ken griffy jr hit 23 home runs in the first 50 games of the season. If he hit homw runs at this pace all season, how many would he have at the end of the year? aSSUME A 168 games schedule. Round your answer to the nearest whole number of home runs.
*July 12, 2010*

**alg**

thanks
*July 12, 2010*

**alg**

thanks sue but that 5 and 19 are both prime number
*July 12, 2010*

**alg**

which of the following are prime number? a) 5 b) 19 c) 33 d) 49
*July 12, 2010*

**alg**

THANKS
*July 12, 2010*

**alg**

4.00
*July 12, 2010*

**alg**

Sue bought a dress on sale fro $21.50. If the sale was a 15% off sale, how much money did she save compared to if she bought at the regualr price? round you saving the nearest cent
*July 12, 2010*

**algebra**

what is the solution of the following linear system? -4x - y = 5 -12x - 3y = 15 a) (-2,1) b) none c) (3,-2) d) infinite number of solutions
*May 2, 2010*

**algebra **

what is the solution of the following linear system? -4x - y = 5 -12x - 3y = 15 a) (-2,1) b) none c) (3,-2) d) infinite number of solutions
*May 1, 2010*

**algebra **

solve the following system of equations. 5x + y = -9 -5x + 2y = 0
*April 29, 2010*

**algebra **

solve the following system equations x + y = 1 x - 1 = 1
*April 29, 2010*

**alegbra**

what is the solution of the following system of equations? 2y + 3x = 8 y = 1/2x a) (2,3) b) (2,1) c) (1,2) d) (3,2) thanks
*April 29, 2010*

**alegbra **

what is the solution of the following system of equations? y = 0 x = y + 2 a) (0,2) b) (2,0) c) (1,2) d) (2,1) thank you
*April 29, 2010*

**Pre-Algebra**

-the-whirl-series-
*September 15, 2009*

**biology**

how could scientific research have an impact on a society's decisions on making laws? please HELP thank you so much. i need the answer before i sleep.
*September 14, 2009*

**7th grade**

DEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE ...
*February 6, 2009*

**7th grade**

DEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE RAINBOW COULERDDEEZ NUTS ARE ...
*February 6, 2009*

**7th grade**

But you said were so you are real
*February 6, 2009*

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