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?

Juan is traveling to visit universities. He notices mile markers along the road. He records the mile markers every 10 minutes. His father is driving at a constant speed. (First time interval= 520...

Consider the following sequence of figures. Figure 1 contains 5 line segments. Figure 2 contains 9 and figure three contains 13. Given that figure n contains 801 line segments, show that...

5a. The sides of a square are 16 cm in length. The midpoints of the sides of this square are joined to form a new square and four triangles. The process is repeated twice. Let Xn denote the length...

1a. Consider the following sequence of figures. Figure 1 contains 5 line segments. Figure 2 contains 9 and figure three contains 13. Given that figure n contains 801 line segments, show...

Any hints on how to prove this? What can we use a a proper subsequence, knowing that a proper subsequence is any subsequence except for the sequence it self.

Find the first five terms of the following sequence: an = 2an-1 + 3 a1 = 2

a1 = 5, an = 2an-1 + n, n > 1

a1 = 5, an = -3an-1 - 1, n > 1

next number in the sequence 2, 7, 26, 101, 400

2a,4b,8ab,32ab2,256a2b3,......

The first row of a movie display has 4 movies. Each row after the first has two more movies than the row above it

Find $\frac{3}{2^2(1)(2)}$ + $\frac{4}{2^3(2)(3)}$ +....+ $\frac{r+2}{2^{r+1}(r)(r+1)} +.... up to infinity.

I really need the answer to this!!!!!!! Please oh please :(

I really don't understand this, and I need to answer this question. Please answer it for me and explain a bit how. Or give me a website i can find how.

Not sure how to do this? Answers are either: 878, 9493, 925, 8568 or none

i have tried a few variations on sequence possibilities but i am not getting the right answer

What is the A(1) term?

a1=1 and an= (an-1)2 + 1

If a1=1 and an=(an-1)^2 + 1.

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