I need to do this without a graphing calculator... I got up until.. 45r7-2735r3+2735r2-45=0 What next steps do I need to do to get r?

I need to do this without a graphing calculator... I got up until.. 45r7-2735r3+2735r2-45=0 What next steps do I need to do to get r?

A ball drops from a height of 20 feet. Each time it hits the ground, it bounces up 40 percents of the height it fall. Assume it goes on forever, find the total distance it travels.

Area of the array is 462 x 282mm The overall pocket dimensions are 80 x 58mm The pocket shape has a 29mm radius at each end and a straight section measuring 22mm long on each of the 80mm long...

the answer should be in the form ab where a and b are integers and a is the as small as possible.

A young professional lady would like to invest money for savings. As consultant, she asked you which of the two companies is better to invest money. Company A requires P25, 000 initial investment...

Can someone just explain to me how to find if a series is convergent/divergent, how to find sum, how to write the ar^n and how to find them from he original series given. For example, ∑n=1...

1. In a geometric series, t1=3 and S3=21. Determine the common ratio and an expression for the sum of the first k terms.

Background information: nsin(1/n) diverges using the Test for Divergence. I was playing around on my calculator and I noticed that no matter what term number you use the output...

it says thats the answer i dont know how that is possible because cos24 = .9135... if thats the case what is cos28?

Let f(x) = 4x/(4x + 2) Find the sum of f(1/2014) + f(2/2014) + f(3/2014) + ... + f(2013/2014)

a1=4, an=1024, r = -2

P - the sun is shining q - it is raining r - the cat is inside a - the sun is shining and the cat is inside. b - if it is raining then the sun is not shining c - if it...

After each washing of a pair of jeans, 1.8% of the dye washes out. How much dye remains after 12 washings?

The first and the last terms of a geometric series are 2 and 2048 respectively. The sum of the series is 2730. Find the number of terms and the common ratio.

5 + 15 + 45 + ... + 98,415

I cannot figure out where to begin with these choices: 1) 730 2) 745 30 820 4) 910

1. Find the sum: (1/√1 + √2) + (1/√2 + √3) + (1/√3 + √4) + ... + (1/√99 + √100)

Don't know how to find the first term please explain.

A large school board established a phone tree to contact all of its employees in case of emergencies or inclement weather. Each of the three superintendents calls three employees who each in turn...

integral of x^8ln(1+x)dx f(x) = C + sum from n=1 to infinity of... What is the radius of convergence R? Please show how you arrive at the...