Answers edited by Evan

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• Using a straight edge and compass construct The perpendicular bisector of FG ?
  
• How come on my "thank you notes" that some people sent it from e.g 'someone from San Francisco, America" and then some people have their names attached to it? I hope my question makes sense
  
• Is y=2x-9 a direct variation and if so, what is the constant?
  
• What is the smallest perimeter possible for a rectangle of area 16 in^2?
  
• I need help to Show an equation that relates the House Price, P to the square footage, #ft^2#, and then use this equation to predict the price of a #20,200 ft^2# house?
  
• How do you combine #11/(5x)-1/(5x)#?
  
• What are the definition of the three types of chemical reactions?
  
• How do you round 0.013946 to three significant figures?
  
• During external respiration, are gases exchanged between the outside air and the alveoli, the alveoli and the blood, the blood and cells, the outside air and blood in the dermis, or the cytosol and mitochondria?
  
• How do you express the number #7,832,940,065# in English?
  
• Four times the sum of a number and 9 is equal to 7?
  
• For which t-values does the system have none, one or infinite solutions? #4(t+4)x+21y=56 ;color(white)("dd")12x+3ty=24#
  
• Simplify #(n!)/((n+1)!)-((n-1)!)/(n!)#?
  
• How do you find the intercepts for #4x+3y=8#?
  
• A Pacific salmon can swim at a maximum speed of 8 mi/h. The function #y =8x # describes how many miles #y# the fish swims in #x# hours. What is the number of miles the fish swims in 3.5 hours?
  
• The length of a rectangle is 4 times its width x. If the rectangle is inscribed in a circle, how do you determine the area of the circle as a function of x?
  
• What benefit do fossils provide humans?
  
• How do you simplify # (4 times 10^8)^-2#?
  
• Integration of sqrt 1+x^4 dx=?
  
• How do you combine #\frac { 1} { x - 3} + \frac { 1} { ( x - 3) ^ { 2} } - \frac { 1} { ( x - 3) ^ { 3} }# into one term?
  
• Assume y varies inversely as x, how do you write the equation given y=-4 when x=-3?
  
• Evaluate #int_0^1 (t/(1+t^3))dt#?
  
• You open a deposit account that pays 2.75% annual interest compounded monthly. There was an opening deposit of $500 and further deposits of $500 at the beginning all the following months. ?
  
• Is the sequence - 1,6,-36,216 geometric?
  
• #cot765^@ = #? #sec765^@ = #? #csc765^@ = #?
  
• How do you solve #sqrt(4x+1)+3=0#?
  
• If #y# varies inversely with #x#, and if #y=10# when #x=1.2#, what is the value of #x# when #y=30#?
  
• What is separating a solid from a liquid by evaporating the liquid called?
  
• How do you multiply #(4a ^ { 3} ) ( 2a ^ { 2} )#?
  
• The most commonly used skin antiseptic, rubbing alcohol, is how many percent alcohol?
  
• How do you factor #x^9 - x^6 - x^3 + 1#?
  
• What is the the value of a? Also, prove the following:
  
• A belt is fitted tightly around two wheels of radii #20 cm# & #5 cm# which are #5 cm# apart. How do you show that the length of the belt is #30(pi + sqrt3) cm#?
  
• What are the points of inflection of #f(x)= (x^2 - 8)/(x^2+3) #?
  
• What are the stationary points of #y=x^3/(1-x^2)#?
  
• Is 193 a perfect square?
  
• How do you convert repeating decimals into fractions?
  
• Why does a reaction with nitric acid produce nitrogen gas?
  
• What are the stimuli that turn on and off the thirst center?
  
• Evaluate the indefinite integral:∫sqrt(10x−x^2)dx ?
  
• Solve for #x# and #y#, given that #x+8y=160# and #3x+5y=119#?
  
• Who were the kulaks?
  
• Find all real numbers of #s# such that #-2(s - 7) > 4s + 8#. Give your answer in interval notation?
  
• How to do 191st question?
  
• Kate has a balance of $ 1,080 on her credit card. If she makes no purchases and pays $ 90 each month, will her credit card balance be payed off in a year? Explain.
  
• How many moles of helium is present in 10g of helium?
  
• What are concussions a form of?
  
• Explain how water moves up a plant via transpiration?
  
• What is the slope and y-intercept of this line y = x – 3?
  
• If you got 3 wrong out of 35 possible answers what would be the percentage?
  
• Functions, Help?
  
• Is phenol more acidic than acetylene?
  
• In a two-digit number, the square of the units digit is greater than the tens digit by 2. The sum of the number and the number formed by reversing its digits is 110. What is the two-digit number? Solve using simultaneous equation.
  
• How do you write these numbers in order from least to greatest: 6.139, 6.38, 6.3, 6.319?
  
• The variables x and y vary inversely. How do you write an equation that relates x and y given x = 15, y = 5?
  
• A car that cost $6100 was sold 2 years later at a 3% loss. How much did it sell for?
  
• Find the maxima and minima of function:- #y=2x^3-9x^2-24x+15#?
  
• ABCD is a parallelogram. Prove that AC and PQ bisect each other.?
  
• Dave has 3 times as many sweets as Will. Debbie has 3 sweets less than Dave. Together, they have 53 sweets. What is the simplest ratio between the number of sweets that Will has to the number that Dave has to the number that Debbie has?
  
• #y=x/(x^2+1)#, find maxima and minima?
  
• I need help to Show an equation that relates the House Price, P to the square footage, #ft^2#, and then use this equation to predict the price of a #20,200 ft^2# house?
  
• If Ajay gives Vijay ₹5, Ajay would have twice as much as Vijay. If Vijay gives Ajay ₹15, Ajay would have 8 times as much as Vijay. How much does Ajay have?
  
• What are the roots of the equation #x^2-5x+1=0#?
  
• How do you solve #x^2 + 10x + 13 = 0# by completing the square?
  
• Solve for #x# in #|2x-4| >= -5#? Why doesn't the usual method work in this case?
  
• Rationalize #(sqrt(6) + sqrt(5))/(sqrt(5) - sqrt(3))#?
  
• How do you solve the equation #x^2-8x=-9# by completing the square?
  
• What are the points of inflection of #f(x)=(3x^2 + 8x + 5)/(4-x) #?
  
• From the word 'propriety', how do you find all the possible words / different arrangements of all the letters? (answer is 90720)
  
• How do i solve this?
  
• What is the Square Root of -12?
  
• The length of a rectangle is 8cm greater than its width. How do you find the dimensions of the rectangle if its area is 105cm²?
  
• How do you solve #abs(x+17)+10=70#?
  
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