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Tutors Answer Your Questions about Length-and-distance (FREE)
Question 80186: The length of a rectangle is represented by x+1. Its width is represented by x-3. If the area of the retangle is 117 squre centimeters, what are the dimensions of the rectangle?
Note: I calculated -10cm and 12cm, however, the book provided anwers of 9cm and 13cm.
Click here to see answer by stanbon(57314) |
Question 81032: Is the statement true always, sometimes, or never?
A: The diagonals of a rectangle are perpendicular.
B: The diagonals of a rectangle are congruent.
C: The diagonals of a rectangle are parallel.
D: A diagonal of a rectangle is perpendicular to a side of the rectangle.
Click here to see answer by Edwin McCravy(8908)  |
Question 81657: A ten-foot-long board is cut into three pieces. The second piece is half as long as the first. The third piece is 4 1/2 feet longer than the second. How long is the first piece?
A. 1 1/10 feet
B. 2 1/5 feet
C. 2 3/4 feet
D. 3 1/3 feet
Click here to see answer by tutorcecilia(2152)  |
Question 82887: A 6 FT. TALL MAN IS STANDING NEAR A TREE ON LEVEL GROUND. HIS SHADOW IS 4FT LONG. IF THE LENGTH OF THE TREE'S SHADOW IS EQUAL TO 18 FT.- HOW TALL IS THE TREE? ** THE ANSWER IS 27FT- I
AM CONFUSED ON HOW THEY GOT THAT ANSWER. PLEASE HELP. THANK YOU, CHRISTINA
Click here to see answer by stanbon(57314) |
Question 83177: All day I've tried to get this word problem completed and I have no clue. Can you help me?
An open-top box is to be constructed from a 6 foot by 8 foot rectangular cardboard by cutting out equal squares at each corner and folding up the flaps. Let x denote the length of each side of the square to be cut out.
Questions:
Find the function V that represents the volume of the box in terms of x.
Graph this function and show the graph over the valid range of the variable x.
Using the graph, what is the value of x that will produce the maximum volume?
Click here to see answer by Mona27(45) |
Question 83177: All day I've tried to get this word problem completed and I have no clue. Can you help me?
An open-top box is to be constructed from a 6 foot by 8 foot rectangular cardboard by cutting out equal squares at each corner and folding up the flaps. Let x denote the length of each side of the square to be cut out.
Questions:
Find the function V that represents the volume of the box in terms of x.
Graph this function and show the graph over the valid range of the variable x.
Using the graph, what is the value of x that will produce the maximum volume?
Click here to see answer by jim_thompson5910(28593) |
Question 85404: I really need help with this one, can someone please help me
Use coordinate geometry to prove that the quadrilateral OPQR with vertices O(0,0),P(9,3),Q(9,8), and R(-3,4) is an isosceles trapezoid.
Click here to see answer by scianci(186) |
Question 85584: Connie and Ron walked to a dock at 3 miles per hour, jumped into a boat, and motored to Dillion at 10 miles per hour. If the total distance was 48 miles and the trip took 7.25 hours in all, how far did they go by boat?
Click here to see answer by stanbon(57314) |
Question 87074: I don't know where to begin with this problem!! Please help. Thanks you.
A candle is lit at 5:30 p.m. Another candle, 1 cm shorter than the first, is lit at 7 p.m. The candles are the same length at 9:30 p.m. The first candle burns out at 11:30 p.m. and the second one at 11:00 p.m. How tall was the longer candle?
Click here to see answer by josmiceli(9671)  |
Question 88935: If someone could help me with this distance word problem it would be greatly appreciated. Thank you
During rush hour, Ella can drive 50 miles using the side roads in the same time it takes to travel 20 miles on the freeway. If Ella's rate on the side roads is 9 mi/hr faster than her rate on the freeway. Find her rate on the side roads.
Click here to see answer by scott8148(6628)  |
Question 89454: I have a problem that has thrown me for a loop. I am to find all values of y such that the distance between (3,y) and (-2,9) is 12. I tried to solve this problem by using the distance formula (X1,Y1)and (X2,Y2). Which looks like this d=the square root of (X2-X1)2 + (Y2-Y1)2 ***this is all under the square root symble and the 2 are squares**
(-2-3)2+(3-y)2 remember the 2's are sqrares and the problem is under the sqrare root symbole
(5)2+ (3-y)2
100+9-y2
109-Y2
I'm not sure if I am on the right path. Please help!
(sorry i do not know how to put the root symbole or make the 1 by the X and Y small on the computer)
Click here to see answer by stanbon(57314) |
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