11/13/15
Evaluate the following indefinite integral
Evaluate the following indefinite integral:
∫x*secx2*x dx
11/10/15
how to get a parabola equation from vertex and x intercepts
I need to find the equation for a parabola with a
- vertex: 3, -4
- x intercepts: 1,0 and 5,0
Many Thanks
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11/07/15
find the domain of the function f(x)=log(x-2).
find the domain of the function f(x)=log(x-2). write your answer in interval notation.
11/07/15
You walk into a room with 3 other people in it. What is the probability that one or more of them has a birthday in the same month as yours?
Probability
11/07/15
domain of the inverse
If f(x) = x^2 + 4x, find (1) a domain on which f(x) is one-to-one, (2) the inverse of f(x) on the domain given in part (1) and (3) the domain of the inverse in part (2).
I got (1) domain is...
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11/07/15
the sum of two numbers is 18. if twice the smallest number is 6 more than the larger, find the two numbers.
the equation should be in the system of linear equations.
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11/07/15
A toy rocket is launched vertically with an initial velocity of 128 feet/second. What is it's maximum height.
h= -16t2 + 128t
It is a 4 part question.
1. How long will it take to return to the ground
2. How long will it take to reach 112 ft.
3. What is it's maximum height
4 How long will it take to...
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11/07/15
a bomber flying at an angle 30degrees below the horizontal with 240m/s velocity drops a bomb.
a bomber flying at an angle 30degrees below the horizontal with 240m/s velocity drops a bomb. A rocket launcher 300m directly below the bomber fires a shell at exactly the same time bomb was...
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11/05/15
Please help me with the following mathematical questions.
1) I did time=distance/speed. my sum was 170/35=time. My answer was 4.85714. How do i show that in hours and the nearest minute?
2) Again, i used the same formula for another question and...
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11/05/15
Word problem, lower/upper bounds (maths)
Steve travelled from Ashton to Barnfield
He travelled 235 miles, correct to the nearest 5 miles.
The journey took him 200 minutes, correct to the nearest 5 minutes.
calculate the lower...
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11/01/15
Write an equation for this situation using F to represent the amount of fluid (saline solution) left in milliliters and t to represent the time in minutes. Hint
Doctors use intravenous (IV) drips to deliver fluids and medications to patients. Suppose an IV drip starts with 1,000 ml of saline and dispenses fluid at a rate of 2.5 ml per minute.Write an...
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10/30/15
Condense the following: 2 log148 - 2 log14b - 2 log14u
Condense the following: 2 log148 - 2 log14b - 2 log14u
10/20/15
what would be the next three terms in this sequence? Z,2,X,4,U,8,Q?
thanks I'm confused.
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10/20/15
Cartesian product Help
Let A={x e N | 2x-7<0} and .b={x e N | x^2<4}
a. Describe the Cartesian product A x B by listing its elements
b. Describe the Cartesian product B x A by listing its elements.
10/19/15
Determine the domain of each of the following functions. Write your answer for the domain in interval notation.
f(x)=3x-1 f(x)= -1/x^2+2x-3f(x)=Square root of x-6
Fuctions, Interval, Increasing/ Decreasing, Concave up/ Concave Down (Using Calculus)
Consider the function f(x)=3x+6/6x+3
For this function there are two important intervals: (−∞,A) and (A,∞) where the function is not defined at...
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10/12/15
Find the probability of being dealt 5 cards from a standard 52-card deck, and getting one pair.
I know there are 2598960 ways to draw 5 cards.
I tried a few different ways to find the complete answer but I got it wrong every time.
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If a 100 by 104 rectangle is divided into unit squares, a diagonal line will pass through how many unit squares?
3 by 3 square diagonal passes through 3 squares. 3 by 6 diagonal passes through 6 squares. The answer is not 104.
10/05/15
The average price of three mugs is $4. One of the mugs costs $p and another mug costs $3. Express the price of the third mug in terms of p.
The average price of three mugs is $4. One of the mugs costs $p and another mug costs $3. Express the price of the third mug in terms of p.
10/05/15
Find the time
A marketing manager travels 1,080 miles in a jet and than an additional 240 miles by car. If the car ride takes one hour longer than the jet ride takes, and if the rate of the jet is 6 times the...
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10/05/15
use implicit differentiation to find an equation of the tangent line to the curve at the given point. x^2-xy-y^2=1 (2,1) hyperbola
Please help me
10/05/15
Swimmers in lanes
At the start of a race two swimmers are swimming side by side in adjacent lanesof a pool whose lanes are 25 meters long. One swimmer, swimming at a rate of 60 metersper minute, pulls ahead of the...
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10/05/15
find dy/dx by implicit differentiation x^4+x^2 y^2+y^3=5
Please help me
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