Answers created by Roy Ø.

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• Prove by induction that for every n ≥ 1 we have?
  
• How do you solve # 5⋅18^6x= 26#?
  
• Show that the propositions p and p v (p ^ q) are logically equivalent? Must do a truth table.
  
• How to do this?
  
• How do you find the square root of 5625?
  
• How could i solve this?
  
• 12 persons are to be arranged to a round table if two particular person among them are not to be side by side the total number of arrangement is?
  
• The question is below?
  
• What is the most common colour in the universe?
  
• How many possible codes are there if the digits cannot be repeated? How many possible codes are there if the digits cannot be repeated?
  
• How do you factor #5r ^ { 3} s + 30r ^ { 2} - 5r ^ { 2} s - 30r ^ { 3}#?
  
• How do you solve #-3x^2+7x= -5# by completing the square?
  
• Solve the equation by completing the square. 8x2= -11x-7 ?
  
• How do you solve #12/(x+4)<=4#?
  
• Below are two different functions, f(x) and g(x). What can be determined about their slopes? f(x)= 4x + 2 The function g(x) going through 0, −2 and 1, 3 The function f(x) has a larger slope. The function g(x) has a larger slope. They both have the
  
• Find the roots of the following quadratic equation if they exist by the method of completing the square 2x²-7x+3=0?
  
• Find the real zeros (if any) of the polynomial ?
  
• Let x > 0, prove x^2 + 1 > lnx?
  
• Explain why a 1375kg car with the same engine, producing the same acceleration (16m/s/s) as a 1400kg car might have a slight advantage? The 1400kg car uses a force of 22,400N and the 1375kg car uses a force of 22,000N to accelerate. Someone please help?
  
• Determine true velocity?
  
• What is the fraction #4/9# simplified?
  
• Perform indicated operation?
  
• How do you find the slope perpendicular to #7x+2y=0#?
  
• How long (in seconds) does it take for a radio wave of frequency 8.94 × 106 s–1 to reach Mars when Mars is 8.2 × 107 km from Earth?
  
• How do you write an equation of a line given (2, 5) and has slope undifined?
  
• What are the SI units?
  
• The reaction time for an automobile driver is 0.7 sec.If the automobile can be decelarated at 5 m/s^2 calculate the total distance travelled in coming to stop from an initial velocity of 8.33 m/s after a signal is observed?
  
• Two numbers have a sum of 22 and their product is 103. What are the numbers in simplest radical form?
  
• How do you solve #d-8= -2#?
  
• What is formula ib this sequence 3 -16 12 -24 48?
  
• True or False: The area of a circle of radius 14 units is equal to the surface area of a sphere of radius 7 units?
  
• How do you solve the following system: # 8x - y = 13 , 5x-9y=-23 #?
  
• How do you determine if the equation #y = (0.1)^x# represents exponential growth or decay?
  
• How do you graph #3x - 1 = 5x - y #?
  
• How do I find the two variables a and n?
  
• How do you solve #2( c - 4) + 8= \frac { 1} { 2} ( 6c + 20)#?
  
• 3^2x+1 + 3^x+2= 12 Prove?
  
• Please solve q 99?
  
• What is the ratio of 8/24?
  
• How do solve the following linear system?: # 4x+3y=29, 2x - 5y=3 #?
  
• How do you write an equation of a line given (-3, 6) and has slope 1/3?
  
• Solve h-4/5 = h-3/6?
  
• What ia the arithmetric means between 68 and 3?
  
• Can you help me please ??!
  
• Evaluate Lim 5x³-15x²+1/3x^5-12x+5? X=α
  
• How do you work out the x intercepts of the equation #y=2(x-4)^2-3# by factorising? Thanks!
  
• How do I find the limit of a square root?
  
• How were lasers invented?
  
• Cassandra read 25 pages of a 125-page book. What percent of the book did she read?
  
• Could anyone please help me with part F?
  
• 6x2y (12x +7)? -9mn (-3mn + 8mn)?
  
• How do you simplify #[ ( sqrt(5) root3(9) ] ^ 2#?
  
• How do I find the sum of the infinite geometric series #1/2# + 1 + 2 + 4 +... ?
  
• How do you write #x^2 = 36x# in standard form?
  
• How do you solve the system of equations #7x - 8y = - 16# and #8y - 7x = 16#?
  
• 23 decreased by the product of 44 and an unknown number is 199. What is the value of the unknown number?
  
• What is the square root of 1600?
  
• Which rectangle is similar to a rectangle with length 40 cm and a width 50 cm?
  
• How do you solve the following system?: #-2x -3y =-3, 4x -5y = -4#
  
• How do you solve #(2/5)x + (1/5)y = -1# and #x + (2/5)y = -(8/5)#?
  
• How to solve #4sin^2((3x+pi)/6)=3#?
  
• In 1951, the Dead Sea Scrolls were dated using carbon-14 dating. They were found to still contain 30% of their original carbon 14. If the half life of carbon 14 is 5,730 years, how old were the scrolls?
  
• Y=2/3x-1 y=-x+4?
  
• A boat, which has a speed of 5km/h in still water, crosses a river of width 1km along the shortest path possible in 15 minutes. Find the velocity of the river?
  
• 0.25=(1/2)^(t/4)?
  
• How does the speed of visible light compare with the speed of gamma rays, when both speeds are in a vacuum?
  
• How do you solve #a+ 3( 4a + 8) = 128#?
  
• How do you solve #2x^2-5x-3=0# by completing the square?
  
• How do you simplify #\frac { 3x ^ { 0} } { 3x ^ { 4} - 4x ^ { - 1} }#?
  
• Celsius reading varies directly on the difference between Fahrenheit reading and 32 F. If a Celsius thermometer reads 100 when a Fahrenheit reads 212°, how do you find the Celsius reading when the Fahrenheit reading is 32°?
  
• How does sound travel through a medium?
  
• How do you find the zeroes of #f(x) = (3x-5)(2x+7)#?
  
• Four less than the product of one and a number x ?
  
• How do you translate "the product of a number and three" into a mathematical expression?
  
• 24np/18p^2?
  
• The sum of a number and 8 is less than 12, what can the number be?
  
• Solve for x? 3(2x-2)=2(x+1)
  
• Is the liver a gland?
  
• The legs of a right triangle are 5 and 6 units long. Find the measure of the second largest angle of the triangle. Round your answer to the nearest tenth. Please explain?
  
• How do you solve #0.75x + 0.05( 6- x ) = 0.10( 31)#?
  
• Use the first and second derivatives of the function y = x^3-3x^2-9x+15 to find the intervals of increase and decrease. Help!?
  
• A total of 30 people made cake for a bake sale .Each person made 2 cakes Mrs.Larios found 20% of these cakes were chocolate.How many chocolate cakes were made for the sale?
  
• 3 time x taken away form one third of y ?
  
• Is #f(x)=-7x^3+x^2-2x-1# increasing or decreasing at #x=-2#?
  
• How do you solve this quadratic equation #2x^2- 10+ 7=0#?
  
• How do you make an improper fraction a proper fraction 63/16?
  
• If the circumference of a circle is 12, and the angle measure of an arc is 60°, what is the length of the arc?
  
• How do you graph using slope and intercept of #x+2y=5#?
  
• Graph 7 is similar to graph 8, how are they different?
  
• My proof for this limit using the definition is correct? #lim to 2^+ (1/(x-2)) = +\infty#
  
• How do you graph #3x ^ { 2} + 6x - y + 7= 0#?
  
• How do you solve the following linear system: # 3y-15=x , y-3=-2x #?
  
• The length of a rectangle is three times the width. What is the width of the area is 147 square feet?
  
• If y varies directly as x and inversely as the square of z and y=6 when x=64 and z =8, how do you find y when x = 21 and z=2?
  
• Two angles are supplementary. One angle is 5 degrees less than four times the other. What are the measures of the angles?
  
• How do you solve the inequality #9x^2-6x+1<=0#?
  
• A family has 3 children. Find the probabilities. A) all boys B) All boys or all girls C) Exactly two boys or two girls D) At least one child of each gender What are the probabilities?
  
• In an isosceles trapezoid ABCD, AB=CD=5. The top base = 8 and the bottom base = 14. What is the area of this trapezoid?
  
• How do you simplify #13\frac{7}{10}\times 7#?
  
• How do you simplify #5(4+k)+3(2k-7)#?
  
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