Answers created by John D.

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• In 3 consecutive positive integers, the square of the 1st integer is equal to the sum of, 7 times the second integer, and the 3rd integer. How to find all 3 integers?
  
• How many values of t does the particle change direction if a particle moves with acceleration #a(t)=3t^2-2t# and it's initial velocity is 0?
  
• What is the limit as #x# approaches 0 of #tanx/x#?
  
• How do you find the reciprocal of 3?
  
• The 20th term of an arithmetic series is 131 and the sum of the 6th to 10th terms inclusive is 235. Find the sum of the first 20 terms. Can someone please help??
  
• What is the arc length of #f(x)=sqrt(18-x^2) # on #x in [0,3]#?
  
• What is the arc length of #f(x)=sqrt(18-x^2) # on #x in [0,3]#?
  
• What is the simplified form of #(x-3)/(x^2+x-12) * (x+4)/(x^2 + 8x + 16)#?
  
• How do you solve #7= 2- 3+ 4x#?
  
• What is the surface area produced by rotating #f(x)=cscxcotx, x in [pi/8,pi/4]# around the x-axis?
  
• What is the sum of the x-intercepts of the graph of the quadratic function #y=x^2-4x-12#?
  
• How do you solve # sqrt3cscx-2=0#?
  
• Nathan cut an isosceles triangle from felt to make a spirit banner. Two sides of his banner had the following measures : 15 inches and 7 inches. Which could be the measure of the third side of Nathan’s banner ? A. 20 b. 15 c. 10 d. 7
  
• How do you simplify #cosxtanx+sinxcotx#?
  
• How do you solve #6m + n = 21# and #m - 8n = 28# using substitution?
  
• What are the absolute extrema of #f(x)=x^(1/3)*(20-x)in[0,20]#?
  
• How do you graph inverse trig functions?
  
• How do you solve #x^ { 2} ( x ^ { 2} - 25) \geq 0#?
  
• How do you solve the equation log(3+x)-log(x-5)=log(2)?
  
• How do you solve the equation In9x=1?
  
• How do you find the exact value of the five remaining trigonometric function given #cottheta=1/2# and the angle is in standard position in quadrant III?
  
• A deep sea diver changes his position relative to the surface of the water by #-7/2# meters per minute. How do you write and evaluate an expression to show his position after 3 minutes if he starts at the surface of the water?
  
• Is 0.250 more or less than 0.375?
  
• Find d/dx?
  
• Question #9b1bc
  
• If the area under the curve of f(x) = 25 – x2 from x = –4 to x = 0 is estimated using four approximating rectangles and left endpoints, will the estimate be an underestimate or overestimate?
  
• How do you differentiate #f(x) = (sinx)/(x-e^x)# using the quotient rule?
  
• How do you get these two equations into one equation?
  
• If real numbers satisfy the expression (x+5)^2 + (y-12)^2=14^2, find the minimum of x^2 + y^2?
  
• Question #0796e
  
• How do you divide #(5x^3-7x^2-4x+1)/(3x-1) #?
  
• Question #de4b1
  
• Question #5ebcb
  
• If (1+3+5+...... +a ) + (1+3+5+ .......... +b) = (1+3+5......... +c), where each set of parentheses contains the sum of consecutive odd integers as shown such that a+b+c = 21, a>6. If G = Max{a,b,c} and L = Min{a,b,c}, then? The question has multiple ans
  
• Determine the #a# value #0 < a < 1# in #1/16 log_a256^("colog"_(a^2)256^(log_(a^4)256^{cdots^("colog"_(a^(2^64))256)}))="Im"[z]# where #z# is the solution for #2^4033 z^2-2^2017 z+1 = 0# #(A)1/4, (B)1/8, (C)1/16, (D)1/32, (E) 1/64# ?
  
• Question #8da62
  
• What is the derivative of f(x) = (x)(6^-2x)?
  
• Question #26248
  
• Question #80506
  
• Can you help me ?
  
• Question #d8707
  
• A triangle has two corners with angles of # (3 pi ) / 4 # and # ( pi )/ 6 #. If one side of the triangle has a length of #9 #, what is the largest possible area of the triangle?
  
• How do you simplify #\frac { a ^ { 2} - a - 21} { a - 5}#?
  
• How do you solve #\frac { x + 2} { x } = \frac ( x - 1} { x } - \frac { 4x + 2} { x ^ { 2} - 3x }#?
  
• Question #5dd43
  
• How do you simplify #sqrt(x^2+y^2)#?
  
• How many real solutions does the equation have whose related function is graphed below?
  
• What are the asymptotes and removable discontinuities, if any, of #f(x)= (x^3 + x^2 - 6x )/( 4x^2 - 8x - 12 )#?
  
• How do you solve #\frac { 4} { 5+ x } - \frac { 1} { x } = \frac { 1} { 4x }#?
  
• How do you divide #\frac { ( m + 3) ( m - 7) } { m + 5} \div \frac { ( m + 3) ( m - 7) } { m + 5}#?
  
• What is the LCD of 7(y+2) and y?
  
• Question #70600
  
• Which number is smallest, #3.99xx10^-6, 2.35xx10^-4,9.83xx10^-5#?
  
• What is the Lowest Common Multiple (LCM) of two numbers that don't have any common factors?
  
• How do you determine all values of c that satisfy the mean value theorem on the interval [-1,1] for #(x^2 − 9)(x^2 + 1)#?
  
• Help with these 2 please?
  
• Question #21fe4
  
• Question #a21df
  
• What is the slope of the tangent line of #r=theta/3+sin((3theta)/8-(5pi)/3)# at #theta=(7pi)/6#?
  
• What are the points of inflection of #f(x)=8x + 3 - 2sinx # on # x in [0, 2pi]#?
  
• Question #e8d28
  
• Question #51be1
  
• The region under the curves #y=sqrt((2x)/(x+1)), 0<=x<=1# is rotated about the x axis. How do you sketch the region and find the volumes of the two solids of revolution?
  
• How do you evaluate the integral #int 1/x^3dx# from #3# to #oo#?
  
• For the series #k_n=2^n+1#, what is #k#? what is #n#? what is the value of #k# when #n=5#?
  
• Question #31098
  
• How do you evaluate #12( 2\cdot 10^ { 2} )#?
  
• Question #060f9
  
• How do you solve #x^2+8x+7=0# by factoring?
  
• How do I integrate #intdx/(sqrt(x)(sqrt(x)+1))#?
  
• If #f(x) =-e^(2x+4) # and #g(x) = tan3x #, what is #f'(g(x)) #?
  
• #lim_(h->0)(25 xx 5^h-25)/h = # ?
  
• How do you write the equation of the parabola in vertex form given vertex (3,3) and focus: (-2,3)?
  
• How do you solve #5<x-10 <8#?
  
• How do you solve for y in # x = | y + 5 | #?
  
• Question #368ef
  
• Write a function rule for the perimeter of a rectangle whose length is 6 feet more than its width. What is the perimeter of the rectangle when its width is 12 feet?
  
• What is the slope of the line perpendicular to the line whose equation is #7x-2y=9#?
  
• Question #60eb6
  
• Question #7b8e2
  
• A bag contains 4 red, 6 white, and 7 blue marbles. How many ways can 3 red, 2 white, and 4 blue marbles be chosen?
  
• Question #43bd9
  
• Question #21119
  
• Question #1dda7
  
• Question #91c11
  
• What is the equation of the normal line of #f(x)=(x^2-4)-e^(x+2)# at #x=2#?
  
• Question #ba14a
  
• How do you solve this system of equations: #4x + y + 8z = 6 , 7x - y = 9z = - 10 , and - 6x + y - 8z = 8#?
  
• Question #2c069
  
• What is the expression that represents 3 less than the sum of 9 and #x#?
  
• How do you factor #x^{2}-8x=2#?
  
• Question #68c69
  
• The point (-12, 4) is on the graph of y = f(x). Find the corresponding point on the graph of y = g(x)? (Refer to below)
  
• How do you solve #2^(2x+1)= 3(2^x)-1#?
  
• Question #ec244
  
• Question #b7560
  
• Can someone solve this by either factoring, graphing, quadratic formula, or completing the square? The problem is 3x^2+7x-24=13x
  
• What is the arc length of the curve given by #x = t^2# and #y= 2t^2 = 1#, for # 1<t<3#?
  
• Question #754ae
  
• Question #3b237
  
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