05/13/15
What number increased by 6% of itself equals $2650?
What number increased by 6% of itself equals $2650?
05/12/15
Another plane flies!
A plane flies 405 miles with the wind and 315 miles against the wind in the same length of time. If the speed of the wind is 20mph, find the speed of the plane in still air.
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05/12/15
How fast can a pilot travel!!!???
A pilot can travel 385 miles with the wind in the same amount of time at 315 miles against the wind. Find the speed of the wind if the pilots speed in still air is 230 miles per hour.
05/11/15
Piecewise function
This is a piecewise function....I'm not understanding my notes in class...can someone explain how to solve this please?f(x)= 1/4x+2 if x < -2 -(x-1)^2+1 if -2≤x≤2 2 if x>2solve...
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05/11/15
Word Problem: Find All Numbers
find all numbers such that the sum of the number and half its reciprocal is 57/40
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05/10/15
Need an answer asap please!
the question is
√x+3 = √2x+8
I squared both ends to get
x+3= 2x+8
I moved the variables to one side and the numbers to the other to get
3x=5
my answer was x= 5 over...
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05/10/15
The points -1, 11 and 4, r lie on a line with slope -4 . Find the missing coordinate r .
what is r?
05/10/15
A pyramid has a square base with sides of length, x, a height of 2x-5, and a volume of 3.
Then solve for x and state the side length of the base and the height of the pyramid.
05/09/15
word problem
A square piece of tin, 14 inches on a side, is to have four equal squares cut from its corners, as shown. If the edges are then to be folded up to make a box with a floor area of 36 square inches,...
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05/09/15
Find the derivative of the function y=(-6x^10+70x-4)^6.
Find the derivative of the function y=(−6x10+70x−4)6. Select one6(−6x10+70x−4)5−10(−6x10+70x−4)6(6x9−7)−10(−6x10+70x−4)5(6x9−7)−60(−6x10+70x−4)5(6x9−7)−60(−6x10+70x−4)6(15x9+1)
05/08/15
Two boats leaving from a port. One headed North(9 miles per hour) and One headed West(40 miles) distance after two hours.
Two boats leave a port at the same time. One travels North at 9 miles per hour,and the other travels west at 40 miles per hour.How far apart are they after from the port two hours?
05/08/15
How many gallons of the 30% solution and 70% solution should be mixed?
A 30% solution of fertilizer is to be mixed with a 70% solution of fertilizer in order to get 120 gallons of a 60% solution. How many gallons of the 30% solution and 70% solution should be mixed?
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05/05/15
Find an equation for the nth term of the arithmetic sequence.a16 = 21, a17 = -1
Find an equation for the nth term of the arithmetic sequence.a16 = 21, a17 = -1 an = 351 + 22(n + 1) an = 351 - 22(n + 1) an = 351 + 22(n - 1) an = 351 - 22(n - 1)
05/05/15
Find an equation for the nth term of a geometric sequence where the second and fifth terms are -24 and 1536, respectively.
Find an equation for the nth term of a geometric sequence where the second and fifth terms are -24 and 1536, respectively. an = 6 • (-4)n + 1 an = 6 • 4n an = 6 • 4n - 1 an = 6 • (-4)n - 1
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05/03/15
calculus ivt
find the value C that is guaranteed by the intermediate value theorem so that f (c)=k
F (x)=6x-9/x-2 [1,5] k=4
05/03/15
sin theta + sin 3 theta = tan theta sec theta
sin theta + sin 3 theta = tan theta sec theta
Show that the right side equals the left side
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05/02/15
an original investment of $11,00 earns 6.00% intrest conpounded continuously. what will the investment be worth in 1 year???
What will the investment be worth in 1 year and 10 years??
05/02/15
equations with antilogarithms
In Algebra 2, I am given the following,
log x = 3.71
and told to solve with a calculator. I don't know how to solve this problem.
04/30/15
NEED ANSWERED ASAP Derivatives of exponential functions
a rumour spreads in such a way that t hours after the rumour starts, the percent of people involved in passing it on is given by P(t)=100(e-t- e-4t). what is the highest percentage of people...
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