08/15/17
Find the equation of a line perpendicular to 2x+8y=17 and passing through the point (1,2).
College Algebra
Calculus question
You decide to warm your house by lighting your wood fire place. The smoke is coming out the chimney in the shape of an inverted right circular cone, the diameter of which is equal to its height. If...
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08/14/17
If sin x=-4/5 with x in III quadrant, and cos y =5/13 with y in quadrant IV, find sin(x+y).
If sin x=-4/5 with x in III quadrant, and cos y =5/13 with y in quadrant IV, find sin(x+y).
08/10/17
Evaluate. Assume u>0 when ln u appears. ∫(x^3+1)^6 3x^2dx
Evaluate. Assume u>0 when ln u appears. ∫(x^3+1)^6 3x^2dx
Calculus question
Find 2 positive numbers whose sum is 18 and the product of the first number and the square of the other is a maximum.
Help!?
08/08/17
Calculus 1 problem.
What is poured through a chute at a rate of 10 ft cube /min and falls in a conical pile whose bottom radius is always half the altitude. How fast is the radius of the base increasing when the pile...
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08/05/17
Magnitude of x
A vector X is added to vector Y = 12i -16j. The resultant vector lies along the positive x axis and has the same magnitude as X. What is the magnitude of X?
08/03/17
The area of a rectangular wall
The area of a rectangular wall of a barn is 168 square feet. Its length is 10 feet longer than twice its width. Find the length and width of the wall of the barn.
08/02/17
What is the value of Z when X= 10, and Y=8.
The variable Z is directly proportional to X, and inversely proportional to Y. When X is 6 and Y is 3, Z has the value 6.
08/01/17
If 15 is less than or equal to f(x) less than or equal to 19, then
If 15 ≤ f(x) ≤ 19, then
8
____________≤ ∫ f(x)dx ≤__________
5
07/31/17
The sum of two numbers is 16, and the sum of their squares is 146. Find the two numbers.
pls. help if u know
related rates
A coffee filter has the shape of an inverted cone. The radius is 8 cm at the top and the filter's height is 10 cm. Water is drained from the filter at the rate of 25 cm^3/s. How fast is the depth...
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07/29/17
What are the solutions to sine left parenthesis 3 theta right parenthesis equals negative 1 in the interval 0 less than or equals theta less than 2 pi ?
What are the solutions to sine left parenthesis 3 theta right parenthesis equals negative 1 in the interval 0 less than or equals theta less than 2 pi?
07/28/17
Find the area of the region that is enclosed between y=x^2+1 and y=5 .
I want solution
Find the area of the region that is enclosed between y=x2+1 and y=5
07/28/17
Optimization
Dianna wants to enclose a rectangular flower plot that adjoins a brick retaining wall. If she has only 30 m of decorative fencing, what should be the dimensions of the flower plot be so that she a...
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07/27/17
Find the open intervals on which f is increasing and decreasing.
Let f(x)=(x-6)/(x+6). Find the open intervals on which f is increasing and decreasing. Then determine the x-coordinates of all relative maxima and minima.
1. f is increasing on the...
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07/27/17
Find the absolute maximum and minimum values of the function on each of the indicated intervals
Find the absolute maximum and minimum values of the function on each of the indicated intervals.
f(x)=x^4-6x^2-1
a) Interval [-3,-1]
Absolute maximum:_______
Absolute...
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07/25/17
Find the average value of the function f ( x ) = 5 x 4 f ( x ) = 5 x 4 on the interval 1 ≤ x ≤ 5
need for homework help please asap
07/25/17
Use a linear approximation to estimate the number
Use a linear approximation to estimate the number sqrt(9.05)
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