Tutors Answer Your Questions about Quadratic Equations (FREE)
Question 1166523: The graphs of polynomial functions of degree n may have ______ to ____ zeros when n is even, and ____ to ____ when n is odd.
The graphs of polynomials functions of degree n have ____ to _____ hills and valleys when n is even and _____ to ______hills and valleys when n is odd.
thanks
Click here to see answer by greenestamps(13195)  |
Question 1166724: Steve opened a boutique in a shopping mall to sell
perfumes and cologne. The amount made by the store is given by the formula,
A = 50 (m - 8 )2 - 3200
where A is the amount made by the store in dollars and m is the number of months the store has
been opened.
a. During what month did he have the lowest net and what was it?
b. What is the amount made after 18 month?
Click here to see answer by Theo(13342)  |
Question 1166724: Steve opened a boutique in a shopping mall to sell
perfumes and cologne. The amount made by the store is given by the formula,
A = 50 (m - 8 )2 - 3200
where A is the amount made by the store in dollars and m is the number of months the store has
been opened.
a. During what month did he have the lowest net and what was it?
b. What is the amount made after 18 month?
Click here to see answer by ikleyn(52750)  |
Question 1166719: he path of a model rocket is modelled by the quadratic function h(t)=-5(t-20^+ 25, where the height, h(t),is in meters and time,t,is in seconds.
a) when will the rocket reach a height of 20 meters?
b)was the rocket in their after 4 seconds?
Click here to see answer by ikleyn(52750)  |
Question 1166740: An object is thrown upward at a speed of 132 feet per second by a machine from a height of 7 feet off the ground. The height h of the object after t seconds can be found using the equation h=-16t^2+132t+7. When will the height be 108 feet? When will the object reach the ground?
Click here to see answer by ikleyn(52750)  |
Question 1166738: A certain electronics manufacturer found that the marginal cost C to produce x DVD/Blu-ray players can be found using the equation C=0.03x^2-5x+600. If the marginal cost were $527 how many DVD/Blu-ray players were produced?
Click here to see answer by ikleyn(52750)  |
Question 1166998: Horatio, a local farmer and part time magician, wants to create a rectangular compound for his chickens using wire fencing. Furthermore, he needs to divide the compound into two rectangular pens, to separate the roosters from the hens, by installing a dividing fence in the middle. He has 450 meters of fence. Determine the dimensions maximizing the enclosed area. What is the maximum area?
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 1167000: 1. The height of an object launched vertically above the surface of a planet is given by the function h=-1/2gt^2+vt+h, where g is the gravtiational acceleration on that planet, v is the initial velocity and h is the initial height of the object.
The gravitational acceleration on Mars is 4m/s^2. An astronaut jumps from a 10 metre high rock into the air with velocity of 8m/s upwards. He reaches a max height then accelerates downwards and eventually lands safely on the ground beneath the rock.
a)What is the max height reached by the astronaut
b)When is that max height achieved?
c)What is the duration of his flight?
d)When is the astronaut at the same height as the rock on his way down?
e)For how long is the astronaut higher than 12 metres above the ground?
Click here to see answer by solver91311(24713)  |
Question 1167000: 1. The height of an object launched vertically above the surface of a planet is given by the function h=-1/2gt^2+vt+h, where g is the gravtiational acceleration on that planet, v is the initial velocity and h is the initial height of the object.
The gravitational acceleration on Mars is 4m/s^2. An astronaut jumps from a 10 metre high rock into the air with velocity of 8m/s upwards. He reaches a max height then accelerates downwards and eventually lands safely on the ground beneath the rock.
a)What is the max height reached by the astronaut
b)When is that max height achieved?
c)What is the duration of his flight?
d)When is the astronaut at the same height as the rock on his way down?
e)For how long is the astronaut higher than 12 metres above the ground?
Click here to see answer by ikleyn(52750)  |
Question 1167222: the shaded region of the diagram on the right shows the portion of a squared-shaped car park that is already cemented part is 600m2.How would you represent the length of the side of the car park?how about the width of the cemented portion
Click here to see answer by ikleyn(52750)  |
Question 1167246: Sometimes you must use multiple different types of factoring in the same question.
Fully factor
Write a different expression that, in order to be factored fully, must use 2 different types of factoring. (It is expected that each student has a different starting expression).
Verify by factoring it fully and showing your work.
Click here to see answer by ikleyn(52750)  |
Question 1167245: Consider the rectangular “screen” you are using to complete this assessment.
Measure your screen (remember you got a ruler in your school kit) and write down the length and width.
LENGTH = WIDTH =
If x = 5cm, write an express
Click here to see answer by ikleyn(52750)  |
Question 1167539: The length of a car park is 120m longer than bits width. The area of the car park is 6400m². How would you represent the width of the car park? How about it's length? What equation represent the area of the car park? How would you use this equation representing nthe area of the car park in finding it's length and width? What is the length of a park? What is the width?
Click here to see answer by solver91311(24713)  |
Question 1167539: The length of a car park is 120m longer than bits width. The area of the car park is 6400m². How would you represent the width of the car park? How about it's length? What equation represent the area of the car park? How would you use this equation representing nthe area of the car park in finding it's length and width? What is the length of a park? What is the width?
Click here to see answer by ikleyn(52750)  |
Question 1167958: A monthly teen magazine has $20,000 subscribers when it charges $12 per annual subscription. For each $1 increase in price, the magazine loses about 1000 subscribers. Our goal is to find how we can maximize the annual revenue.
a. How much will the revenue be when it charges $12?
b. How much will the revenue be when it charges $13?
c. How much will the revenue be when it charges $16?
d. Let c be the price increase (the number of $ by which it increases) and R(x) the annual revenue.
i. Write down the new price after an increase of x dollars
ii. Write down the new number of subscribers after an increase of x dollars
iii. Write down the R(x) in the intercept form
e. Identify the two zeros and find the average
f. How much should the magazine charge to maximize annual revenue?
g. What is the maximum annual revenue?
Click here to see answer by ikleyn(52750)  |
Question 1168072: A coffee shop currently sells 410 lattes a day at $2.75 each. They recently tried raising the by price by $0.25 a latte, and found that they sold 30 less lattes a day.
a) Assume that the number of lattes they sell in a day, N, is linearly related to the sale price, p (in dollars). Find an equation for
N as a function of p
N(p) = ?
b) Revenue (the amount of money the store brings in before costs) can be found by multiplying the cost per cup times the number of cups sold. Again using p as the sales price, use your equation from above to write an equation for the revenue,
R as a function of p.
R(p)= ?
c) The store wants to maximize their revenue (make as much money as possible). Find the value of p that will maximize the revenue (round to the nearest cent).
p = ?
which will give a maximum revenue of $ ?
I'm in real need of resolving this problem. Please help me!!!
Click here to see answer by ikleyn(52750)  |
Question 1168241: Max has $3.00 in change in his pocket, consisting of quarters, dimes and nickels. The number of
quarters is one-half the number of nickels and the number of dimes is three more than the number
of quarters. How many nickels, dimes and quarters does Max have in his pocket?
Click here to see answer by VFBundy(438)  |
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