Tutors Answer Your Questions about Linear Algebra (FREE)
Question 1052176: A. ) If x represents the smallest of three consecutive integers , write an expression to represent each of the next two consecutive integers .
B.) if x represents the largest of three consecutive integers , write an expression to represent each of the previous two consecutive integers
Click here to see answer by stanbon(75887)  |
Question 1052516: Good evening. I'm having hard time on how to differentiate an eigenvalue from eigenvector. I can't understand the examples on there internet Kindly provide a more specific example and a step-by-step explanation on how we solve the abovementioned problem. One problem/ example is so much credited. Thank you very much....
Click here to see answer by Fombitz(32388)  |
Question 1053915: Which of the following statements are true about functions and relations?
No trigonometric functions are relations.
All trigonometric functions are relations.
A trigonometric function may or may not be a relation.
The vertical line test will not work for trigonometric relations.
Click here to see answer by ikleyn(52775)  |
Question 1053912: A box is to be constructed from a sheet of cardboard that is 10 cm by 50 cm by cutting out squares of length x by x from each corner and bending up the sides.
What is the maximum volume this box could have? (Round your answer to two decimal places.)
Click here to see answer by josgarithmetic(39616) |
Question 1054144: please help me to solve this problem.
After a certain number is diminished by 8, the amount remaining is multiplied by 8; the result is the same as if the number were diminished by 3 and the amount remaining multiplied by 3. What is the number?
The number is =
Click here to see answer by josgarithmetic(39616) |
Question 1054144: please help me to solve this problem.
After a certain number is diminished by 8, the amount remaining is multiplied by 8; the result is the same as if the number were diminished by 3 and the amount remaining multiplied by 3. What is the number?
The number is =
Click here to see answer by ikleyn(52775) |
Question 1054144: please help me to solve this problem.
After a certain number is diminished by 8, the amount remaining is multiplied by 8; the result is the same as if the number were diminished by 3 and the amount remaining multiplied by 3. What is the number?
The number is =
Click here to see answer by MathTherapy(10551)  |
Question 1054139: please help me to solve this problem.
During a certain week, a small wind generator and a small hydro unit together produce 5880 kWh, with the wind generator operating only 85.0% of the time. During another week, the two units produce 6240 kWh, with the wind generator working 95.0% of the time and the hydro unit down 7.50 h for repairs. Assuming that each unit has a constant output when operating, find the number of kilowatts produced by each in 1.00 h.
Do not round intermediate results. Round only final answers. Round to the nearest integer.
wind generator:
hydro unit:
Click here to see answer by Theo(13342)  |
Question 1054225: Please help me.
After a certain number is diminished by 8, the amount remaining is multiplied by 8; the result is the same as if the number were diminished by 3 and the amount remaining multiplied by 3. What is the number?
The number is
Click here to see answer by ikleyn(52775) |
Question 1054224: Please help me to solve this problem.
A certain paint mixture weighing 305 kg contains 22% solids suspended in water. How many kilograms of water must be allowed to evaporate to raise the concentration of solids to 27%?
Treat the percents given in this exercise as exact numbers, and work to three significant digits.
Quantity of water =
Click here to see answer by Boreal(15235)  |
Question 1054224: Please help me to solve this problem.
A certain paint mixture weighing 305 kg contains 22% solids suspended in water. How many kilograms of water must be allowed to evaporate to raise the concentration of solids to 27%?
Treat the percents given in this exercise as exact numbers, and work to three significant digits.
Quantity of water =
Click here to see answer by ikleyn(52775) |
Question 1054223: Please help me to solve this problem.
A certain mine yields low-grade oil shale containing 18.0 U.S. gallons of oil per ton of rock, and another mine has shale yielding 30.0 gal./ton. How many tons of each must be sent each day to a processing plant that processes 23000 tons of rock per day, so that the overall yield will be 22.0 gal./ton?
18.0 gal./ton=
30.0 gal./ton=
Click here to see answer by jorel555(1290) |
Question 1054305: Determine if the vectors v1 = (1,2,3), v2 = (1,0,-1), v3 = (2,2,2), v4 = (2,4,6) span R^3
What I have done is create a matrix and Im not sure where to go next
1 2 3
1 0 -1
2 2 2
2 4 6
I assume I have to use Gaussian Elimination, but I am lost afterwards
Click here to see answer by ikleyn(52775) |
Question 1054883: please help me.
A stone is thrown upward with a horizontal velocity of 80 ft./s and an upward velocity of 60 ft./s. At t seconds it will have a horizontal displacement H equal to 80t and a vertical displacement V equal to 60t – 16t2. The straight-line distance S from the stone to the launch point is found by the Pythagorean theorem. Write an equation for S in terms of t, and simplify.
Click here to see answer by ikleyn(52775) |
Question 1054921: I need help with the steps to solve this problem
3b cubed minus 5b squared plus 2b
I really would like en explanation to the steps on how the answer can be obtained and what the answer is. I am stuck on question 11 on my homework and I'd like to understand the process
Click here to see answer by Theo(13342) |
Question 1054689: (Calculator) The function r(t)=0.69607+.60871InT gives the annual interest rate r, as a percent, a bank will pay on its money market accounts, where t is the term in months. What interest rate, to the nearest tenth of a percent, will the bank pay on a money market account with a term of 9 months?
Click here to see answer by Alan3354(69443)  |
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