Tutors Answer Your Questions about Equations (FREE)
Question 1135252: Use the position equation s=-16t^2+VoT+So , where s represents the height of an object (in feet), Vo represents the inital velocity of the object(in feet per second), So represents the initial height of the object(in feet), anf T represents the time(in seconds). A projectile is fired straight upward from ground level (So=0)with a initial velocity of 224 feet per second.
a). At what instant will it be back at ground level?
b). When will the height exceed 768 feet.
Click here to see answer by Alan3354(69443)   |
Question 1135263: Use the position equation s=-16t^2+VoT+So , where s represents the height of an object (in feet), Vo represents the inital velocity of the object(in feet per second), So represents the initial height of the object(in feet), anf T represents the time(in seconds). A projectile is fired straight upward from ground level (So=0)with a initial velocity of 224 feet per second.
a). At what instant will it be back at ground level?
b). When will the height exceed 768 feet.
Click here to see answer by Alan3354(69443) |
Question 1135340: This question is not directly related a particular topic in Math. I am looking for advice on how to deal with a child who doesn't read the question properly and hence gets the answers wrong. Conceptually he is fine. However, my son, tends to not read the questions properly or pay attention the the small details in the question. For example, the multiple choice question asked to pick all the correct answers. But he probably looked at multiple choice question, assumed it was asking for the one correct answer and answered accordingly.Needless to say he got no credit for partial correct answer.
The same applies to word problems too. I have repeatedly told him to read carefully not once but twice but it is not helping. How do I help him implement a habit to read the questions properly?
Click here to see answer by rothauserc(4718)  |
Question 1135340: This question is not directly related a particular topic in Math. I am looking for advice on how to deal with a child who doesn't read the question properly and hence gets the answers wrong. Conceptually he is fine. However, my son, tends to not read the questions properly or pay attention the the small details in the question. For example, the multiple choice question asked to pick all the correct answers. But he probably looked at multiple choice question, assumed it was asking for the one correct answer and answered accordingly.Needless to say he got no credit for partial correct answer.
The same applies to word problems too. I have repeatedly told him to read carefully not once but twice but it is not helping. How do I help him implement a habit to read the questions properly?
Click here to see answer by MathLover1(20849)  |
Question 1135433: 13. (18 pts) The cost, in dollars, for a company to produce x widgets is given by
C(x) = 4050 + 9.00x for x ≥ 0, and the price-demand function, in dollars per widget, is p(x) = 63-0.03x for 0 ≤ x ≤ 2100.
In Quiz 2, problem #10, it was seen that the profit function for this scenario isP(x) = -0.03x^2 + 54.00x-4050.
(a) The profit function is a quadratic function and so its graph is a parabola. Does the parabola open up or down? __________
(b) Find the vertex of the profit function P(x) using algebra. Show algebraic work.
(c) State the maximum profit and the number of widgets which yield that maximum profit:
The maximum profit is _____________, when ___________ widgets are produced and sold. (d) Determine the price to charge per widget in order to maximize profit.
(e) Find and interpret the break-even points. Show algebraic work.
Click here to see answer by MathLover1(20849) |
Question 1135541: Enzo and Beatriz are playing games at their local arcade.
Incredibly, Enzo wins 5 tickets from every game, and Beatriz wins 11 tickets from every game. When they stopped playing games, Enzo and Beatriz had won the same number of total tickets.
What is the minimum number of games that Enzo could have played?
Click here to see answer by Alan3354(69443) |
Question 1135551: how do you solve mr connor and miss harper decide to run and keep track. mr Connor runs 27 miles before miss harper. mr connor runs an average of 28 miles per week and miss harper runs average 34 miles per week. how long will it take before they both run the same distance
Click here to see answer by ikleyn(52776)  |
Question 1135582: Bob, Rob, and Chuck invest $13,000, $22,000, and $18,000, respectively, to build a yacht. After the yacht was built, Bob decided to sell his share of the investment to Rob and Chuck. How much would Rob and Chuck have to pay Bob if they want to maintain the same ratio of their investment in the yacht?
Click here to see answer by ikleyn(52776) |
Question 1135582: Bob, Rob, and Chuck invest $13,000, $22,000, and $18,000, respectively, to build a yacht. After the yacht was built, Bob decided to sell his share of the investment to Rob and Chuck. How much would Rob and Chuck have to pay Bob if they want to maintain the same ratio of their investment in the yacht?
Click here to see answer by greenestamps(13198)  |
Question 1135752: 2. (6 pts) Based on data about the growth of a particular species of tree, the following logarithmic model was determined:
h(t) = 5.902 ln(t) + 6.137, where t = age of tree in years and h (t) = height of tree, in feet.
(Note that "ln" refers to the natural log function) (explanation optional)
Using the model,
(a)At age 4 years, how tall is this type of tree, to the nearest tenth of a foot?
(b) At age 13 years, how tall is this type of tree, to the nearest tenth of a foot?
Click here to see answer by Theo(13342)  |
Question 1135756: 16 pts) Let f(x)=(3x -7)/(5x - 8)
(a) Determine f -1 , the inverse function of f. Show work.
(b) Determine the domain of f. What is the domain of the inverse function?
(c) Determine f (3). f (3) = ______
work/explanation optional
(d) What is f -1 ( ____ ), where the number in the blank is your answer from part (c)?
work/explanation optional
Click here to see answer by MathLover1(20849) |
Question 1135809: Quadratic Word Problems:
To make a square whose area is a number four times as large as it’s perimeter, how long should each side be?
What I have so far:
X - length of all four sides
Y - area
Z - perimeter
y=4z
4x=z
x^2=y
I’m sorry but this is homework due tomorrow and it is my last question. Can you please help me figure it out?
Click here to see answer by josgarithmetic(39616) |
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