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Question 1133151: 2.1 Construct a diagram to show graphically the relationship between the yield of corn and rainfall from the following data:
Year Yield per hectare in 100kg bags(kg)(x) Seasonal Rainfall in Millimetres(y)
63 24 50
64 19 80
65 36 120
66 32 115
67 26 75
68 34 70
69 26 115
70 26 77,5
71 29 60
72 38 175
73 40 177,5
74 30 115
2.2 Compare and interpret (with the aid of rough diagrams) the skewness in the two distributions given in section 1 above.
(Assume: standard deviation of X = 5,95 and Y = 40)
Click here to see answer by josgarithmetic(39613)

Question 1134169: Solve the system of equations by finding a row echelon form for the augmented matrix.
x - 3y + 3z = 19
2x -y - 9z= -32
-5x+10y+z=-21

Click here to see answer by rothauserc(4718)

Question 1134441: Solve the system of inequalities by graphing.
x^2+y^2=36
100x^2+18y^2>=1600
Click here to see answer by mathsolverplus(88)

Question 1134442: Solve the system of inequalities by graphing. Indicate your solution set clearly.
y>x^2
x+y<=2
Click here to see answer by mathsolverplus(88)

Question 1134444: The ACME company makes two types of rings: the VIP and the SST. They can produce up
to 24 rings every day using up to 60 total man-hours. It takes 3 man-hours to make one VIP
ring and 2 man-hours to make one SST ring. How many of each type of ring should be made
daily to maximize the company’s profit if the profit on the VIP ring is $40 and on the SST ring is
$35. Show the graph, all equations and work.
Thank you!
Click here to see answer by ikleyn(52754)

Question 1135669: Find All points having an x-coordinate of 9 distance from the point is (3,-2) is 10
Click here to see answer by ikleyn(52754)

Question 1135669: Find All points having an x-coordinate of 9 distance from the point is (3,-2) is 10
Click here to see answer by josgarithmetic(39613)

Question 1135669: Find All points having an x-coordinate of 9 distance from the point is (3,-2) is 10
Click here to see answer by greenestamps(13195)

Question 1136726: The distance between the points A 1,2k) and B (1-k, 1) is √11-9k.Find the possible values of k.
Click here to see answer by greenestamps(13195)

Question 1137113: please help me solving this problem.perform a 45 degree rotation of atriangle A(0,0),B(1,1),C(5,2) (a)about the origin and(b)about p(-1,-1).
Click here to see answer by Theo(13342)

Question 1137353: 4-9a+6=0
Click here to see answer by MathLover1(20849)

Question 1137353: 4-9a+6=0
Click here to see answer by Alan3354(69443)

Question 1137927: Calculate the distance between (p, p+1) and (p-1, 2p+1)
Click here to see answer by MathLover1(20849)

Question 1138017: Triangle ABC was rotated 90 degrees clockwise. It then underwent a dilation centered at the origin with a scale factor of 4. Triangle A'B'C' is the resulting image. Is the perimeter of A'B'C' <,>, or = to the perimeter of ABC?
Click here to see answer by jim_thompson5910(35256)

Question 1139269: a chemist is mixing a solution that is 2% acid and another solution that is 8% acid. She needs to make 75 mL of a solution that is 5% acid. How much of each solution should she use?
Click here to see answer by Alan3354(69443)

Question 1139423: The midpoint of AB is (3,-5).
A=(9,4)
What are the coordinates of point B? Give your answer in the form (x,y).

Click here to see answer by MathLover1(20849)

Question 1139586: find y if the distance between points p and R is 25 and point R is located in the first quadrant.
P=(3,-8)
R=(10,y)
Click here to see answer by ikleyn(52754)

Question 1139586: find y if the distance between points p and R is 25 and point R is located in the first quadrant.
P=(3,-8)
R=(10,y)
Click here to see answer by MathLover1(20849)

Question 1139586: find y if the distance between points p and R is 25 and point R is located in the first quadrant.
P=(3,-8)
R=(10,y)
Click here to see answer by Theo(13342)

Question 1139586: find y if the distance between points p and R is 25 and point R is located in the first quadrant.
P=(3,-8)
R=(10,y)
Click here to see answer by greenestamps(13195)

Question 1140767: h(t)=-2t^2+4t+6

Click here to see answer by greenestamps(13195)

Question 1141424: If you travel 5 mi west and then 12 mi south, how far are you from your starting point?

I’m assuming the answer to this question would be a negative number since you’re moving to the left and then down.
Click here to see answer by MathLover1(20849)

Question 1141615: Does x+6y=13 and y=5/3x +1 have a solution? Explain. Please solve this for me thank you...

Click here to see answer by math_helper(2461)

Question 1142065: Find the equation of the circle with center in the first quadrant, with radius 2 and tangent to the y-axis at (0,1).
Click here to see answer by Theo(13342)

Question 1142065: Find the equation of the circle with center in the first quadrant, with radius 2 and tangent to the y-axis at (0,1).
Click here to see answer by josmiceli(19441)

Question 1142094: The graph below shows y=f(x). Show the final graph after the transformations of y=-2f(-x+3)+4.
Link to diagram : http://tinypic.com/r/2wp8rw3/9
Thank you in advance
Click here to see answer by greenestamps(13195)

Question 1142127: what is the equation of the line that passes through (5, -2) and (-3, 4)?
a.) 3x-4y-7=0
b.) 3x+4y-7=0
c.) -3x+4y-7=0
Click here to see answer by Edwin McCravy(20054)

Question 1142880: How do I work out the X intercepts of the equation -x^2+6x+5
Click here to see answer by josgarithmetic(39613)

Question 1142991: What quadrant is (0, -1)? I thought is was Quadrant III but that is incorrect.
Click here to see answer by math_helper(2461)

Question 1143069: Calculate the correlation coefficient for the following data, showing all work. What does it tell you about the data?

Click here to see answer by ikleyn(52754)

Question 1143379: Write the equation for a circle centered at the origin with y-intercepts of (0,-4) and (0,4).Use ^2 for squared, ^3 for cubed, etc.
Click here to see answer by Alan3354(69443)

Question 1143380: Write the equation for a circle centered at the origin with x-intercepts of (-9,0) and (9,0).Use ^2 for squared, ^3 for cubed, etc.
and
Write the equation for a circle centered at the origin with a radius of 11 units. Use ^2 for squared, ^3 for cubed, etc.
Click here to see answer by Alan3354(69443)

Question 1144326: Can you show me how to plot (-4,0) Weeks
Click here to see answer by josgarithmetic(39613)

Question 1144494: Given f(x) below, graph over the domain [-3, 3], what is the range?
f(x)=
{∣x∣,x≥0
{1,1≤x<0
{x-2,x<-1
Click here to see answer by greenestamps(13195)

Question 1144720: Can anyone check A for me please. I'm lost on B. For C would I just plug in (t+1) for x?
Let f(x)= x^2/(2x-3).
(a) Calculate f(-2)
= (-2)^2/(2(-2)-3)
= 4/(-4-3)
= 4/-7
= -4/7

(b) State the domain of the function in interval notation.

(c) Find and simplify as much as possible: f(t+1)

Click here to see answer by math_helper(2461)

Question 1144799: y=2x^2-1 sketch the graph of equation
Click here to see answer by josmiceli(19441)

Question 1145464: the equation of a line that passes through the point (-2,6) and is parallel to the line that passes through the points (0, -4) and (3, 2).

Click here to see answer by Alan3354(69443)

Question 1145781: Line L has equation 2x - 3y = 5.
Line M passes through the point (3, -10) and is parallel to line L.
Determine the equation for line M.

Click here to see answer by ikleyn(52754)

Question 1145623: -2(x-c)^2 if c=0,1,-2 show graph is vertical shift, horizontal shift, stretching, or reflecting
Click here to see answer by MathLover1(20849)

Question 1147249: what is perpendicular of 3/5

Click here to see answer by josgarithmetic(39613)

Question 1147290: The product of complex numbers (4,3) and (5,−6) is ?
Click here to see answer by Alan3354(69443)

Question 1147737: A is point (-1,6) on a cartesian graph, and B is point (14,9) on the same graph. Point C is on the x axis. What is the least value of AC+CB?
Click here to see answer by ikleyn(52754)

Question 1148348: 1: determine the coordinate of the point on the graph y=3x^2-7x+2.where gradient is -1
2: find the gradient of the curve.y=3x^4-2x^2+5x-2 at the point (0,2) and (1,4)
Click here to see answer by Alan3354(69443)

Question 1149012: please explain when working with inverses
f(x)=15/8x+3/2 is f-1(x)=8/15x-4/5
I don't understand why its 4/5.
thank you
Click here to see answer by math_helper(2461)

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