Answers created by Taha Z.

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• How do you solve `4( 9+ x ) = 136`?
  
• What is the equation of the line perpendicular to `y = 3x -2` and passes through point (3,4)?
  
• Question #92aa1
  
• If a `0.3*mol` quantity of calcium chloride is dissolved in a `1*L` water solvent what are the concentrations of `Ca^(2+)` and `Cl^-`?
  
• How do you solve `-5n-8(1+7n)=-8`?
  
• Suppose you buy several pens at a discount store. All the pens are the same price, and you buy as manypens as the cost (in cents) of each pen. The total is $1.44. How many pens did you buy?
  
• Question #64897
  
• How do you solve `6( s - 8) \leq - 18`?
  
• Question #438b5
  
• Question #ce7da
  
• Question #e46a5
  
• Tyrone has $60 and his sister has $135. Both get an allowance of $5 per week. He decides to save his entire allowance. His sister spends all of hers each week plus an additional $10. After how many weeks will each have the same amount of money?
  
• At a concession stand, five hot dogs and two hamburgers cost $11.75; two hot dogs and five hamburgers cost $11.00. How do you find the cost of one hot dog and the cost of one hamburger?
  
• How do you evaluate `3\cdot 10^ { 4} \cdot 5.3\times 10^ { - 23}`?
  
• Question #3e533
  
• How do you evaluate `\frac { 3x - 21} { 6x - 42}`?
  
• What is the maximum revenue that the company can make?
  
• Question #7a5dd
  
• How will temperature affect the spontaneity of a reaction with positive `DeltaH` and `DeltaS`?
  
• What determines when a system reaches equilibrium? What observations can be made about a system once equilibrium has been established?
  
• The level of thorium in a sample decreases by a factor of one-half every 4.2 million years. A meteorite is discovered to have only 7.6% of its original thorium remaining. How old is the meteorite?
  
• Question #9974d
  
• How do you evaluate `n^2 - n -3` for `n` = 4?
  
• How do you simplify `24x-22=-4+25x`?
  
• A store sells bicycles for $250 each. In one week, the store had $1,250 in bicycle sales. How many bicycles did the store sell?
  
• How do you factor `3x ^ { 2} + 15x + 21= 0`?
  
• Question #990f5
  
• Question #a73c7
  
• A flight leaves Orlando, Florida, at 7:35 A.M. and arrives in San Francisco, California, at 10:15 A.M. Orlando is 3 hours ahead of San Francisco. How long did the flight last?
  
• How do you calculate percent change if Sales Revenue - 2007 was £230,000,000 and in 2006: £200,000,000?
  
• Question #249ab
  
• How do you solve `|x – 4| > |3x – 1|`?
  
• What depends upon the amount of sample present whereas temperature does not?
  
• Question #54837
  
• Question #71533
  
• Question #703a5
  
• Question #0fe9b
  
• Question #7701f
  
• Starting with 189 grams of uranium-238, after one half life has gone by, how many grams of uranium-238 will remain?
  
• Question #e2e12
  
• How do you evaluate `\frac { 1 } { 2} ( 5- 2h ) = \frac { h } { 2}`?
  
• How do you evaluate `(20 - (4^2 \div (2+14)) +5)/(4^2 -13)`?
  
• When does the air become saturated?
  
• How do you solve `\frac { x + 2} { 9} - \frac { 2x + 9} { 5} = 2x + 3`?
  
• Question #48fc8
  
• How do you evaluate `2[ 5( w + 3) - ( 1+ w ) ] = 3( w + 2)`?
  
• Question #4cc71
  
• Question #191e4
  
• Question #0cda4
  
• Question #09738
  
• How do I differentiate `y=(tanx)^(x^2)` using natural logarithms?
  
• How do you find the value of the permutation P(12,0)?
  
• What is the relationship between atomic radius and ionization energy?
  
• Mr. Gonzales invested 10,000 more than her husband did. If they both invested the money at 5 percent per year & their combined income from their investments was 4,000, how much did they invest each?
  
• How do you add `3.1b + 2.6b`?
  
• What is formal charge and how is it determined?
  
• If a car is moving at 90 km/h and it rounds a corner, also at 90 km/h, does it maintain a constant speed? A constant velocity? Defend your answer.
  
• Question #d542a
  
• Question #0dfa9
  
• Suppose the radius of a circle is 3. What is its circumference?
  
• Express 563 in exponential notetion ?
  
• Question #38348
  
• Question #0c929
  
• Question #d56d7
  
• Can someone help me please? Thanks
  
• Question #0c67e
  
• What is 7+6i divided by 10+i?
  
• Question #af89f
  
• Question #d4b0f
  
• How do you solve `\frac { 13} { 4} ( \frac { 31} { 8} r + 1) = \frac { 5423} { 56}`?
  
• Question #16fd2
  
• Question #1af69
  
• Question #0a3ea
  
• A chemistry has 14.5 g of Al and 7.5 g of `O_2`. What would the excess be for the following reaction: `4Al + 3O_2 -> 2Al_2O_3`?
  
• Question #c09f6
  
• Question #ef093
  
• Question #72a35
  
• Question #d2c06
  
• Can you help me please?
  
• Question #40e89
  
• Question #747d9
  
• An object travels North at `15 m/s` for `2 s` and then travels South at `2 m/s` for `8 s`. What are the object's average speed and velocity?
  
• Question #33fc0
  
• Two horses pull against a rope with forces of 100 newtons in opposite directions. What is this an example of ?
  
• Question #94099
  
• Question #79a20
  
• Question #e080e
  
• Question #c7380
  
• How does the orientation of `H_2O` molecules around `Na^+` differ from that around `Cl^-`?