Tutors Answer Your Questions about Radicals (FREE)
Question 474294: Answer the following questions. Use Equation Editor to write mathematical expressions and equations. First, save this file to your hard drive by selecting Save As from the File menu. Please rename the assignment including your name. Click the white space below each question to maintain proper formatting. You must show your work in order to receive all points possible. Answers only will not receive full credit.
1. A baseball diamond is actually a square, 90 feet on each side. What is the distance from third base to first base? (8 pts)
2. The equation gives the distance, D, in miles that a person can see to the horizon from a height, h, in feet.
a) Solve this equation for h (6 pts)
.
b) Mammoth Mountain is 11,059 feet in elevation. How far can you see to the horizon from the top of Mammoth Mountain? (6 pts)
Click here to see answer by solver91311(16885)   |
Question 474326: 2. The equation gives the distance, D, in miles that a person can see to the horizon from a height, h, in feet.
a) Solve this equation for h (6 pts)
.
b) Mammoth Mountain is 11,059 feet in elevation. How far can you see to the horizon from the top of Mammoth Mountain
Click here to see answer by richard1234(5390)  |
Question 474691: Are each of the statements below true or false? Explain your answer.
√a + √b = √(a+b). Explain why.
The numerator and denominator of the following must be multiplied by √3 to rationalize
3
-----------. Explain why.
3 + √3
Click here to see answer by richard1234(5390) |
Question 475737: Darla is building a new desk. To make sure she had made a square corner she measures 9ft from the corner along one edge and 3ft from the corner along the other edge. How long should the diagonal be between those two points if the corner is a right angle?
Click here to see answer by Alan3354(30993)  |
Question 475769: Simplify by taking roots of the numerator and the denominator. Assume that all expressions under radicals represent positive numbers.
3V 8x^5/y^3
^means raising to that power
the V is suppose to be a square root symbol and the 3 is suppose to be in the indentation of the square root, not directly on the side of it. This is a fraction inside the root; 8x^5 on top and y^3 on bottom
Click here to see answer by ankor@dixie-net.com(15652)  |
Question 476177: I have been working on this equation involving 2 radicals for 2 days. Here is what I have so far.
radical(3x+1)-1- radical (x+4) = 0
isolating 1 radical: radical (3x+1)-1 = radical (x+4)
squaring both sides of the equation: (radical(3x+1)-1)^2 = (radical(x+4))^2
(3x+1)+ 2 radical(3x+1)+1 = x+4
2 radical(3x+1) = -2x+2
squaring both sides again: (2 radical(3x+1))^2 = (-2x+2)^2
4(9x+1)=4x^2-4x+4
36x+4= 4x^2-4x+4
factoring:0=4x^2-40x
Where do I go from here to get the answer of 5 as a solution?
Click here to see answer by scott8148(6628)  |
Question 476276: Can you please help me solve this story problem. A ball is thrown downward from a window in a tall building. It's position at time t in seconds is s=16t^2+32t, where s is in feet. How long (to the nearest tenth) will it take the ball to fall 217 feet? I took 217=16t^2+32t = -217 = 16t^2+32t-217=0 I did a=16, b=32, and c= -217. I used the formula -b+-√b^2-4ac/2a I got -32+-√14,912/32. I'm lost from that point on to get the answer. I have the answer key it says it's 2.8 seconds. Can you help me complete this? Thanks.
Click here to see answer by scott8148(6628) |
Question 476276: Can you please help me solve this story problem. A ball is thrown downward from a window in a tall building. It's position at time t in seconds is s=16t^2+32t, where s is in feet. How long (to the nearest tenth) will it take the ball to fall 217 feet? I took 217=16t^2+32t = -217 = 16t^2+32t-217=0 I did a=16, b=32, and c= -217. I used the formula -b+-√b^2-4ac/2a I got -32+-√14,912/32. I'm lost from that point on to get the answer. I have the answer key it says it's 2.8 seconds. Can you help me complete this? Thanks.
Click here to see answer by bucky(2189) |
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