Tutors Answer Your Questions about Quadratic Equations (FREE)
Question 82655: I feel like an idiot but honestly I only have a few problems out of 55 that Im not getting...please help lol
For the equation x-the sqrt of x=0 , perform the following:
a) Solve for all values of x that satisfies the equation.
Answer:
Show work in this space
b) Graph the functions and on the same graph (by plotting points if necessary). Show the points of intersection of these two graphs.
Graph
c) How does the graph relate to part a?
Answer:
Click here to see answer by stanbon(75887) |
Question 82654: ) I keep getting stuck please help
A right triangle is a triangle with one angle measuring 90°. In a right triangle, the lengths of the sides are related by the Pythagorean Theorem, where c is the length of the hypotenuse (the side opposite the 90° angle). Find the length of the hypotenuse when the other two sides measurements are 3 feet and 4 feet.
Answer:
Show work in this space
Click here to see answer by stanbon(75887) |
Question 82907: The monthly profit, P, in thousands of dollars, of a bicycle company can be estimated by the formula P=-2x(squared)+16X-12......where X is the number of bicycles, in hundreds, sold per month.
a) How many bicycles must be sold for maximum profit?
b) What is the minimum number of bicycles that must be sold to break even?
c) What is the maximum number of bicycles that must be sold to break even?
Click here to see answer by Nate(3500) |
Question 82909: Mary left home at 12 noon and drove to visit her mom who lives 20 miles away. After she arrived she stayed for 2 hours. Afterwards, she drove to her friend Sue's house who lives 15 miles from her mom. She arrived at Sue's at 3:00pm. If her speed heading for Sue's was 5 mph faster than her speed going to her mom's, find her average speed on the way to Sue's
Click here to see answer by josmiceli(19441)  |
Question 82899: Help with these problems due tomorrow night. Thank you
1. Solve by factoring:
x2 6x = -8
2. Solve using the square root property:
2x2 3 = 15
3. Solve using the square root property:
(x + 7)2 = 81
4. Solve by completing the square:
x2 + 8x + 2 = 0
Click here to see answer by Nate(3500) |
Question 83064: Mrs. Niss put $500 in a savings account upon opon which the bank pays an annual yeild of 4%. Because 4% of $500 is $20, and 10 times 20 is $200, Mrs. Niss thinks that the amount in the account after 10 years will be $700($500 + $200). explain why this reasoning is incorrect. If the annual yield continues to be 4%, what will be the amount in the account after 10 years?
Click here to see answer by stanbon(75887) |
Question 83454: The volume of a cylinder(think about the volume of a can) is given by V+pie(r)squared(h) where r is the radius of the cylinder and h is the height of the cylinder. Suppose the volume of the can is 100 cubic centimeters.
a. Write h as a function of r. Keep "pie" in the function's equation.
b. What is the measurement of the height if the radius of the cylinder is 2 centimeters? Round your answer to the nearest whole number.
Show work
c. Graph this function.
Click here to see answer by jim_thompson5910(35256) |
Question 83471: Not quite sure where to put this problem but please help me solve.
The perimeter of the den is 88ft. If the area is 480 square feet then what are the dimensions of the rectangular room?
Click here to see answer by dolly(163) |
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