Tutors Answer Your Questions about Coordinate-system (FREE)
Question 259818: The cardinal number of the set {cat, dog, horse, fish, lizard, meercat, rhinoceros, elephant, giraffe, platypus, hippopotamus, skunk, mouse} is _________.
Click here to see answer by drk(1908)  |
Question 259827: Given U = {15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25}, A = {16, 18, 20, 22}, and
B = {17, 19, 20, 23, 24}.
Find A′ ∩ B′. Do not skip to the answer. Show your work, finding A’, then B’ then find their intersection.
Click here to see answer by Fombitz(32388)  |
Question 259827: Given U = {15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25}, A = {16, 18, 20, 22}, and
B = {17, 19, 20, 23, 24}.
Find A′ ∩ B′. Do not skip to the answer. Show your work, finding A’, then B’ then find their intersection.
Click here to see answer by drk(1908) |
Question 259822: Given these sets:
A = {1, 2, 3, 4}
B = {3, 4, 5, 6, 7}
C = {3, 5, 7, 9}
List the elements of this set
B ∩ (AC)
Do not skip to the answer. Show your work, step by step
Click here to see answer by jim_thompson5910(35256) |
Question 260445: a ball is thrown downward from a window in a tall building. the distance, d, fallen after t seconds is d=16t2(squared) + 32t where d is in feet. how long (to the nearest tenth) will it take the ball to fall 110 feet?
Click here to see answer by Alan3354(69443)  |
Question 262337: The points(-1,-7) and (5,10) are the endpoints of the diameter of a circle. Graph the circle. Find an equation of the circle.
Cordinates of Midpoint of diameter of a circle=((x1 x2)/2, (y1 y2)/2): ((-1 5)/2, (-7 10)/2)=(2, 3/2). Where a=2 and b=3/2, radius r^2 =(a-x1)^2 (b-x2)^2: r^2=(2--1)^2 (3/2--7)^2, r=9.01. Eqn of circle: (x-a)^2 (y-b)^2=r^2: (x-2)^2 (y-3/2)^2=81.25.
Click here to see answer by solver91311(24713)  |
Question 262337: The points(-1,-7) and (5,10) are the endpoints of the diameter of a circle. Graph the circle. Find an equation of the circle.
Cordinates of Midpoint of diameter of a circle=((x1 x2)/2, (y1 y2)/2): ((-1 5)/2, (-7 10)/2)=(2, 3/2). Where a=2 and b=3/2, radius r^2 =(a-x1)^2 (b-x2)^2: r^2=(2--1)^2 (3/2--7)^2, r=9.01. Eqn of circle: (x-a)^2 (y-b)^2=r^2: (x-2)^2 (y-3/2)^2=81.25.
Click here to see answer by Theo(13342)  |
Question 262671: Ordered pairs (0,2), (4,0), and (-4,0) are points on a circle. What is the radius of the circle, and what is the center point of the circle.
I don't want to be given the answer directly, I just want to know what formulas I should be using to solve this problem. I have tried using the distance formula to get the distance between (0,2) and either of the x intercepts. I tried finding the Y intercepts by replacing both X points in the circle equation,  where (k,h) is the midpoint of the circle and r is the radius. I just need to figure out what the other y intercept is and I can answer the question, but I don't know how to figure it out. Please help.
Click here to see answer by richwmiller(17219)  |
Question 264035: Ok, my question reads, "Graph both of the following functions on the same coordinate system. State the point of intersection as an ordered pair." The functions it gives me are  and  . But how can I solve them if I don't know what y or x are? Am I supposed to make my own number for either y or x to solve it, or am I missing something? I know how to graph, and I can find the point of intersection, but I can't figure out how to solve the functions without a function table. Please help if you can? Thank you.
Click here to see answer by jim_thompson5910(35256) |
Question 266106: a. What is the slope of the line of best fit? Use the points (1991, 230) and (1997,350). Show your work.
b. What is an equation for the line of best fit? Use the point (1991,230). Show your work.
c. According to your equation, what were the sales in 2000? Show your work. (5 points) (Points :5)
Click here to see answer by ankor@dixie-net.com(22740)  |
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