Answers edited by Anjali G

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• What is the name of the isotope with 88 protons and 140 neutrons?
  
• Question #0c93b
  
• What is the the electron configuration of #Cu^(2+)#?
  
• How do you factor x^3+27?
  
• How do you solve the quadratic using the quadratic formula given #x^2-3x+10=0#?
  
• The answer ,please?
  
• Question #5ce0c
  
• What is the perimeter and area of the polygon with the given vertices: W(5,-1), X(5, 6), Y(2,-1), Z(2, 6)?
  
• Question #bbd01
  
• How do you integrate #int 1/ [ (x-1)(x+2)(x-3)] dx# using partial fractions?
  
• Question #fff79
  
• Is there a certain formula for derivatives?
  
• How do you differentiate #g(x)=(1+4x)^5(3+x-x^2)^8#?
  
• The plans for a shed call for a rectangular floor with a perimeter of 344 ft. The length is three times the width. What is the length and width?
  
• How do you find the derivative of #lnsin^-1(x)#?
  
• What is the value of the expression #2x^3+3y^2-17# when #x=3# and #y=4#?
  
• What is the area of the figure?
  
• How do you find the product #[(t^2+3t-8)-(t^2-2t+6)](t-4)#?
  
• Question #35a5b
  
• Question #caaa0
  
• Determine the quadrant of the angle’s terminal line lies Sin x = -0.45 & cos x < 0 ?
  
• What is the arclength of the polar curve #f(theta) = 4sin(2theta)-2sec^2theta # over #theta in [0,pi/8] #?
  
• Question #cb56b
  
• How do you solve #30^ { 2} + x ^ { 2} = 36^ { 2}#?
  
• How do you solve #tantheta = sqrt(2)sintheta#?
  
• Question #18c98
  
• How many valence electrons does helium have?
  
• How do you simplify #\root [ 3] { 32x ^ { 12} y z ^ { 6} }#?
  
• What is the improper integrals 1/(x^2-16) dx from 0 to 4 ? .
  
• How to simplify sin x cot x?
  
• How do you simplify #0+ -5 -3#?
  
• How do you differentiate #f(t)= sqrt(t) / (-4t-6)# using the quotient rule?
  
• What is the Maclaurin series for? : #sqrt(1-x)#
  
• How do you solve #\frac{4}{y}=\frac{16}{36}#?
  
• Why is cos(0) = 1?
  
• Find derivative of #cscx# using first principal or definition of derivative?
  
• Question #ae4f3
  
• How to determine the convergence of #Sigma_(n=2)^∞ lnn/sqrtn#?
  
• What is the derivative of # (tan(8x))^2#?
  
• How do I solve this exponential equation problem?
  
• How do you differentiate #y=sqrtx+1+1/sqrtx#?
  
• How do you solve # (x-7)^(2/3)=4#?
  
• What is the probability of rolling a five on one die three times in a row?
  
• Find the exact length of the curve?
  
• Question #acec1
  
• What is pi (sic)?
  
• Question #92b0c
  
• How does the type of wire affect resistance in a wire?
  
• For the experiment of tossing a six sided die twice, what is the probability that the sum is 4?
  
• How do you evaluate #lim_(x-> 0) tanx/x#?
  
• How do you simplify #\frac { x ^ { 2} + x - 12} { x y ^ { 2} } \cdot \frac { x ^ { 7} y } { x ^ { 2} + 7x + 12}#?
  
• How do you calculate the additive inverse of a binary number?
  
• How do you simplify #(\frac { 2n ^ { 2} } { - 4m ^ { 4} } ) ^ { 2}#?
  
• Ques 13 could you please help?
  
• What are the absolute extrema of # f(x)= 2 + x^2 in [-2, 3]#?
  
• How do you solve #5sinx=3#?
  
• How do solve #(x^2+5x)/(x-3)>=0# and write the answer as a inequality and interval notation?
  
• How do you determine dy/dx if #y=x+tan(xy)#?
  
• What is the vertex of # y= -3x^2 - 2x - (x+2)^2 #?
  
• Clinical trial tests a method designed to increase the probability of conceiving a girl. In the study, 340 babies were born, and 289 of them were girls. Use the sample data to construct a 99​% confidence interval estimate of the percentage of girls born?
  
• How do you factor the expression #x^2 - 7x + 10#?
  
• Question #75094
  
• Question #0a736
  
• Use the graph to determine each local extrema? (See Image)
  
• Question #297ca
  
• Find the limit ?
  
• How do you evaluate the integral #int e^t/(e^t+1)dt#?
  
• Question #c3fab
  
• How do you evaluate #arctan(-1)# without a calculator?
  
• A farmer has a rectangular property that needs to be fenced on three sides (a river surrounds the fourth. If he has 2400 feet of fencing material available, what maximum area will he be able to enclose?
  
• What is the derivative of # y = (cosx-sinx)/(cosx+sinx)#?
  
• How do you solve #25^ { x ^ { 2} - x } = 1#?
  
• How do you evaluate the definite integral #int2xdx# from #[0,1]#?
  
• How do you differentiate #f(x)=x^2(x+7)^3# using the product rule?
  
• How to find the limit for #lim x -> 0 ( 1/(xsqrtx) * int_0^sqrtx cos(pi/2*e^(t^2))dt)# with l'Hospital?
  
• Are population means score in statistics different between 2006 and 2016 students? ( Help ) (Stats)
  
• How do you evaluate #93\times 58#?