09/16/22
Let f(x)=x^3−x. Using limits, find the equation of the line tangent to f (x) at x= -1 and x=2.
If f(x)=x3-x, how would I find the equation of the tangent line for x={-1, 2} using the definition of limits? I can do it using the d/dx method, but my teacher doesn't want that. I know that at...
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09/15/22
Need to find an equation to help solve word problem
Here is the word problem:today, billy has $10. Each day he earns $1. Nancy has $4, she makes $2 everyday. In how many days will they have the same amount of money?
How do you solve y < - x ^ 2 + 4x - 3? Sketch a graph of the inequality, plot and include points. show work step by step :)
Sketch the graph of the inequality. Show your work and plot your points on the graph. After solving you should include information regarding the vertex, direction of the graph, axis of symmetry,...
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using the quadratic formula for projectile motion
if H= 0= t2-(2V0/g)t - (2h0/g) and we want to solve for t,how is the quadratic formula for the projectile t1= Vo/g + - sqrt ( (Vo/g)2 + 2ho/g )I'm confused about where the 2 on b went inside the...
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09/13/22
TRIG MATH HELP!!
A Ferris wheel moves with constant speed and completes one rotation every 40 seconds. The wheel has a radius of 12 m and its lowest point is 2 m above the ground. The height of a chair on the...
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09/12/22
Simultaneous Equations
Solve the following simultaneous equations. Give your answers in the form a+b√3, where a and b are rational.x + y = 32x - √3y = 5
For the rational function g(x) = (x^2 − 16)/ (x^3 − 64) , evaluate each of the following limits.
a)lim x→4b)lim x→∞c)lim x→−4
09/10/22
Help me slove this problem
Find the length of the shorter leg of a right triangle if the longer leg is 4 feet more than the shorter leg and the hypotenuse is 4 feet less than twice the shorter leg
09/09/22
Determine Value of r so that the line through the given points has the given slope
(r,2), (4,-6); slope = -8/3
For the rational function f(x) = (4x − 1) / (x + 9) , find the following limits and identify the type of asymptote that each limit indicates.
a) lim -> -9+b) lim -> infinity I do not know what my teacher wants with limit a. that is how she wrote the limit.
How do I write a slope intercept equation for a line that passes through a point and is parallel to a vertical line?
How would I write the slope-intercept equation of a line that passes through(6,-6) and is parallel to x=-1?How would I write a second equation for a line that passes through (6,-6) but is...
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09/07/22
Math 109. Algebra and trigonometry
If f(x)=4x^3+Ax^2+7x-7 and f(2)=9, what is the value of A
09/03/22
For the given functions f and g , find the indicated composition.
f(x) = (2)/(x-2), g(x)=(5)/(4x)(f∘g)(x)
09/03/22
Kyle gives his wife 2/7 of his money. He then spends 3/5 of the remainder. If he had $300 left, how much did he have at first?
I really don't understand, though several people tried to explain it to me.
09/03/22
I need to determine the appropriate substitution using the new variable u
4x^(-2)-19x^(-1)-5=0
09/03/22
The revenue function for a sporting goods company is given by R(x)=x⋅p(x) dollars where x is the number of units sold and p(x)=100−0.5x is the unit price. Find the maximum revenue.
The revenue function for a sporting goods company is given by R(x)=x⋅p(x)R(x)=x⋅p(x) dollars where x is the number of units sold and p(x)=100−0.5xp(x)=100−0.5x is the unit price. Find the maximum...
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