Tutors Answer Your Questions about Quadratic Equations (FREE)
Question 242588: If you can find this you must be a genius! I've been working on this for half an hour... I would greatly appreciate it!
y=6x^2-9x-13
What is the larger intercept? What is the smaller intercept?
Click here to see answer by Theo(13342)  |
Question 242986: Explain how you would find the x-intercepts and y-intercept for quadratic
functions? Are there situations where graph of quadratic functions have
only one x-intercept? Situations where there are no x-intercepts?
Click here to see answer by stanbon(75887) |
Question 242538: the path of a golf ball hit at an angle of about 10 degrees to the horizontal can be modelled by the function h= -0.002dsquared + 0.4d
where h is the height of the ball, in metres, and d is the horizontal distance the ball travels, in metres, until it first hits the ground.
a. What is the maximum height reached by the ball?
b, What is the horizontal distance of the ball from the golfer when the ball reaches its maximum height?
c. What distance does the ball travel horizontally until it first hits the ground?
Click here to see answer by Alan3354(69443)  |
Question 243052: how do you solve -3/u+1=-8+7/u+2
Step 1: Group like terms together
-3/u-7/u = -8+2-1
Step 2: find LCF of the demoninators of the equation at the left of the equal sign. Here you will realise that U is the LCF and so factorised as
-3-7/U = -7
Step 3: Solve for U value
-10/U = -7
Mutliply both sides by U
(U)-10/U = -7(U)
The two Us at left will cancel themselves and you will have:
-10 = -7U
Divide both sides by -7:
-10/-7 = -7U/-7
At the left the negatives will cancel themselves and at the right -7 as a demoninator will cancel the numerator.
Therefore, the final answer will be:
10/7 = U or U = 1 whole number, 3 over 7 (Mixed fraction)
Click here to see answer by freekie11(2)  |
Question 243590: I am struggling on a few word problems on my homework, please help me, it is due tomorrow!
You have 280 feet of fencing. Do you have enough to fence a rectangular region with an area of 4850 sq. ft. ?
and...
In 1987, your uncle opened a neighborhood grocery store. for 1987-2007 his annual sales, S(in millions of dollars) could be modeled by S= -0.035t^2 + 0.8t + 0.5 where t=0 represents 1987. During which years of operation were his annual sales 3 million dollars?
Click here to see answer by oberobic(2304) |
Question 243535: Please answer this question:
You have a pool that measures 8 yards by 10 yards. You want to build a deck around all four siddes of the pool and you want to increase the total area to 120 square yards. The deck is the same width on both sides forming a perfect rectangle. What is the width of the deck?
Click here to see answer by checkley77(12844) |
Question 243867: I am suppose to find out if this equations S= -0.0643t^2 + 3.2152t + 23.9801 is a good equation to base off a companies salary.
I figured it wasn't because it happens to be a parabole that goes down after 25 years of experience. I thought of tbe possibility of people staying at a job for 25 years is highly unlikely but possible... so I figured 18yrs + 25yrs = 43 years of age.
So I figured lowering a employees salary at the age of 44 and on was unethical.
Plus the pay rate increase beforehand was just way to fast and high...
What would you suggest would be a good solution for this company to pay salaries in a equation. It doesn't have to be a quadratic equation but I must be able to graph it.
Click here to see answer by solver91311(24713)  |
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