Answers edited by Evan

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• What are the points of inflection of #f(x)=(3x^2 + 8x + 5)/(4-x) #?
  
• ABCD is a parallelogram. Prove that AC and PQ bisect each other.?
  
• Explain how water moves up a plant via transpiration?
  
• What are concussions a form of?
  
• How to do 191st question?
  
• What is the Square Root of -12?
  
• 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#
  
• Find the maxima and minima of function:- #y=2x^3-9x^2-24x+15#?
  
• How do you round 0.013946 to three significant figures?
  
• How many moles of helium is present in 10g of helium?
  
• How do you express the number #7,832,940,065# in English?
  
• How do i solve this?
  
• 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. ?
  
• Integration of sqrt 1+x^4 dx=?
  
• How do you solve #x^2 + 10x + 13 = 0# by completing the square?
  
• 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 combine #11/(5x)-1/(5x)#?
  
• From the word 'propriety', how do you find all the possible words / different arrangements of all the letters? (answer is 90720)
  
• Evaluate the indefinite integral:∫sqrt(10x−x^2)dx ?
  
• 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
  
• How do you simplify # (4 times 10^8)^-2#?
  
• Why does a reaction with nitric acid produce nitrogen gas?
  
• How do you solve #abs(x+17)+10=70#?
  
• A car that cost $6100 was sold 2 years later at a 3% loss. How much did it sell for?
  
• Assume y varies inversely as x, how do you write the equation given y=-4 when x=-3?
  
• Rationalize #(sqrt(6) + sqrt(5))/(sqrt(5) - sqrt(3))#?
  
• 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#?
  
• If you got 3 wrong out of 35 possible answers what would be the percentage?
  
• 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?
  
• Using a straight edge and compass construct The perpendicular bisector of FG ?
  
• What are the definition of the three types of chemical reactions?
  
• Solve for #x# in #|2x-4| >= -5#? Why doesn't the usual method work in this case?
  
• How do you factor #x^9 - x^6 - x^3 + 1#?
  
• 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?
  
• Four times the sum of a number and 9 is equal to 7?
  
• Simplify #(n!)/((n+1)!)-((n-1)!)/(n!)#?
  
• Who were the kulaks?
  
• How do you solve the equation #x^2-8x=-9# by completing the square?
  
• Find all real numbers of #s# such that #-2(s - 7) > 4s + 8#. Give your answer in interval notation?
  
• #cot765^@ = #? #sec765^@ = #? #csc765^@ = #?
  
• How do you write these numbers in order from least to greatest: 6.139, 6.38, 6.3, 6.319?
  
• 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?
  
• 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.
  
• Solve for #x# and #y#, given that #x+8y=160# and #3x+5y=119#?
  
• What are the stationary points of #y=x^3/(1-x^2)#?
  
• How do you combine #\frac { 1} { x - 3} + \frac { 1} { ( x - 3) ^ { 2} } - \frac { 1} { ( x - 3) ^ { 3} }# into one term?
  
• What is the smallest perimeter possible for a rectangle of area 16 in^2?
  
• The variables x and y vary inversely. How do you write an equation that relates x and y given x = 15, y = 5?
  
• 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 is the slope and y-intercept of this line y = x – 3?
  
• #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?
  
• Is the sequence - 1,6,-36,216 geometric?
  
• The most commonly used skin antiseptic, rubbing alcohol, is how many percent alcohol?
  
• 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?
  
• Is y=2x-9 a direct variation and if so, what is the constant?
  
• Is 193 a perfect square?
  
• Evaluate #int_0^1 (t/(1+t^3))dt#?
  
• 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?
  
• How do you find the intercepts for #4x+3y=8#?
  
• What benefit do fossils provide humans?
  
• How do you convert repeating decimals into fractions?
  
• What are the stimuli that turn on and off the thirst center?
  
• How do you multiply #(4a ^ { 3} ) ( 2a ^ { 2} )#?
  
• What are the roots of the equation #x^2-5x+1=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 the the value of a? Also, prove the following:
  
• Functions, Help?
  
• What are the points of inflection of #f(x)= (x^2 - 8)/(x^2+3) #?
  
• How do you solve #sqrt(4x+1)+3=0#?
  
• 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.
  
• What is separating a solid from a liquid by evaporating the liquid called?
  
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