Answers created by Tom M.

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• Find the sum of arithmetic sequence x - 2, 4x, 7x + 2, ... to 12 terms. ?
  
• How many atoms of carbon has a young man has given to his bride to be if the engagement ring contains 0.5 carat diamond? There are 200mg in a cara.
  
• How do I find the derivative of #ln x^(1/2)#?
  
• How do you use the chain rule to differentiate #y=2(x+3)^(1/2)#?
  
• A) In circle P, find the length of AB given that the radius r = 7 inches and m APB 4 radians?
  
• How do you graph #y= -3 cos x+2#?
  
• N is a two-digit positive even integer where the sum of the digits is 3. If none of the digits are 0, what is N?
  
• How do you write an equation in point slope form that passes through (1,4) and(4,9)?
  
• What is the algebraic expression for "-2 times the quantity q minus 3"?
  
• An aircraft lands and brakes, slowing from 250 m/s to 5 m/s in 30 secs. What is its acceleration?
  
• How do you factor #- 6t - 16+ t ^ { 2}#?
  
• If we start with Q milligrams of radium, the amount (q) remaining after T years is given by q=Q(2)^(-T/1600). Express T in terms of q and Q?
  
• How much kinetic energy is lost in the collision? (See full question below)
  
• Explain Please?
  
• It is question about forces and equilibrium ?
  
• A ball with a mass of #4 kg # and velocity of #1 m/s# collides with a second ball with a mass of #6 kg# and velocity of #- 5 m/s#. If #10%# of the kinetic energy is lost, what are the final velocities of the balls?
  
• A projectile is fired with initial speed v0 = 37.0 m/s from level ground at a target that is on the ground, at distance R = 13.0 m, as shown in the figure. What are the (a) least and (b) greatest launch angles that will allow the projectile to hit the ?
  
• How to find points are area with intergration?
  
• How to solve with integration?
  
• What’s the percent as a decimal 0.23%?
  
• Hydrobromic acid dissolves solid iron according to the balanced equation: Fe(s) + 2 HBr(aq) → FeBr2(aq) + H2(g) How many grams of H2 would be produced by dissolving 6.31g of iron?
  
• What is the square root of 64/169?
  
• How do you evaluate the function #f(x)=x^2 - x + 1# for f(2)?
  
• You are titrating a solution of sodium hydroxide of unknown concentration with 0.500 M of phosphoric acid. It required 16.4 mL of H3PO4 solution to neutralize 10.0 mL of NaOH solution. Calculate the molar concentration of sodium hydroxide solution?
  
• How does interference affect sound waves?
  
• How do you solve #3( 2x - 7) - 4= 3( x - 2) - 10#?
  
• Which person has a higher linear velocity?
  
• In a diagram there is a picture which is 16cm x 8cm surrounded by a border of width 4 cm forming a bigger rectangle. Are the two rectangles similar?
  
• Please answer it in a sentence from the picture below?
  
• The particle p is released from rest at the top of a smooth plane inclined at angle a where sina=16/65.the distance travelled by P from top to bottom is S metres and speed of P at bottom is 8ms^-1 find S and hence speed of P when it has travelled 1/2S?
  
• How do I determine the standard enthalpy of combustion for magnesium in hydrochloric acid?
  
• Please solve this? question in the attachment
  
• What is the pair of integers when the product is 20 and he sum is 9??
  
• Need help with this question.?
  
• A firework rocket takes off vertically with an acceleration of #20ms^-2# and maintains that acceleration for 5 seconds after which the rocket stops burning. Find (a), (b) and (c), below?
  
• How do I solve this complex numbers problem?
  
• A model train with a mass of #2 kg# is moving along a track at #9 (cm)/s#. If the curvature of the track changes from a radius of #6 cm# to #25 cm#, by how much must the centripetal force applied by the tracks change?
  
• Help with physics momentum problems I have a test tomorrow, please?
  
• How to solve this question?
  
• What is the gravitational potential energy of a # 12 kg# object on a shelf # 5/8 m # high?
  
• What units of measurement are used to describe wavelengths?
  
• A skate glides down a track of 36m. It takes 13 seconds to cross the finish llne. What is the skate's speed?
  
• A man fire a bullet standing between 2 cliffs.1st echo is heard after 3 seconds and second echo is heard after 5 seconds.If velocity of sound is 330m/s, then what is the distance between 2 cliffs?
  
• How do you find the roots, real and imaginary, of #y=12x^2 -7x +28-(x-2)^2 # using the quadratic formula?
  
• Solve sin(θ) tan(θ) − cos(θ) = 1 for 0 ≤ θ ≤ 360?
  
• How do you calculate the density of butane,(C4H10) at STP??
  
• How do you divide #(2 + i) / ( 5- i ) #?
  
• Let f(x) = 6x + 1 and g(x) = -2x - 5. Compute (g*f)(x)?
  
• How do you write the standard form of a line given (3, 4) and (–3, –8)?
  
• How do you translate "5 minus twice a number" into an algebraic expression?
  
• How do you solve #(x+1)/3=2#?
  
• What is the right answer ?
  
• How do you solve #2^ { m + 1} + 9= 44#?
  
• Question #fd431
  
• How to use bionominal distribution to solve extended response questions?
  
• How do I determine the wavespeed from given frequency and wavelenght?
  
• Solve algebraically, showing each step of your working, the equation #(8^(x-1) )^2-18(8^(x-1) )+32=0#??
  
• Determine the values of x so that the tangent to the function#y=3(root(3)x)# is parallel to the line #x+16y+3=0#?
  
• If the sum of two numbers is 15 and their product is 50 what are they?
  
• How do you divide # (1-3i) / (-2+i) # in trigonometric form?
  
• Question #1762a
  
• How do you find the vertex and intercepts for #(x − 2)^2 = -12(y − 2)#?
  
• How do you solve rational equations #81.9=((0.1+2x)^2)/((0.1-x)(0.1-x))#?
  
• Question #38319
  
• A triangle has corners at #(5 ,1 )#, #(7 ,9 )#, and #(4 ,2 )#. What is the area of the triangle's circumscribed circle?
  
• Question #b619a
  
• Question #3d4be
  
• Question #79c00
  
• Question #cf085
  
• Question #ee158
  
• How does collision theory relate to reaction rates?
  
• Question #2eafa
  
• Question #31621
  
• Question #e30a3
  
• Question #dd25e
  
• Constant speed vs constant acceleration - When will B catch up A?
  
• During its first 50 days of growth, a sunflower grows about 4 cm per day. What is the constant of proportionality? What is the equation relating height to days? After how many days will a sunflower be 60 cm tall?
  
• Question #3dac0
  
• Can I get some help finding the x - intercept please? Thanks!
  
• Question #b9406
  
• Another Circle Theorem?
  
• Question #c259e
  
• Question #2250a
  
• A chemist hypothesizes that mercury oxide (#HgO#) will undergo a decomposition reaction reaches a temperature. When the chemist designs his experiment what should be the only independent variable?
  
• How do you find the sum of the arithmetic series #Sigma(5t-3)# from t=19 to 23?
  
• Question #c2d60
  
• Question #1e8b2
  
• A new element has the symbol #Y# and seven valence electrons. What is the maximum number of hydrogen atoms that can bond to it?
  
• What is the slope of the equation #-6x+13y=-2#?
  
• A machine can paint #340# toy boats in #45# minutes. How many boats can it paint in one hour?
  
• How do you evaluate #\frac{1}{x^{2}-16}=-\frac{1}{x^{2}-4x}#?
  
• How do you sketch the graph of #y=-2(x-1)^2+7# and describe the transformation?
  
• Question #a078d
  
• How do you find the vertex and the intercepts for #y=-4x^2+24x#?
  
• Question #ca57f
  
• Question #6ade2
  
• How do you solve #11^ { 2} + x ^ { 2} = 23^ { 2}#?
  
• The function #f( x) = 10,000-1,500x # can be used to predict the number of termites in an area #x# days after the area has been treated. How many termites are predicted in the area after 5 days?
  
• Question #a6bde
  
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