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3 years ago

6

Help please ((: ughhh

1 answer:

Dvinal [7]3 years ago

4 0

1/2............................................ I hope this helps

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An arithmetic sequence is defined by the general term tn = -5 + (n - 1)78, where n ∈N and n ≥ 1. What is the recursive formula o

GrogVix [38]

$\text{The general term of an arithmetic sequence:}\ a_n=a_1+(n-1)d\\\\a_n-n-th\ term\\a_1-first\ term\\d-common\ difference\\\\\text{We have}\ t_n=-5+(n-1)78.\ \text{Therefore}\ t_1=-5\ \text{and}\ d=78\\\\\text{The recursive formula of the sequence:}\\\\\left\{\begin{array}{ccc}t_1=-5\\t_n=t_{n-1}+78\end{array}\right$

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3 years ago

Common factors of 20w and 40wz

Alla [95]

I hope this helps you

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3 years ago

What is the vertex and intercepts for y=(5x-2)(2x+3)

Sophie [7]

Answer:

vertex = $(-\frac{11}{20} ,-\frac{361}{40} )$

Intercepts for x = $(\frac{2}{5} ,0), (-\frac{2}{5} ,0)$

intercepts for y = (0,-6)

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3 years ago

Which of the following terms best describes the graph of the exponential function given below ? f(x) =9•(1/7)^x

Cloud [144]

Answer:

this is the graph

Step-by-step explanation:

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3 years ago

Help pls, math due tonight :(

Olenka [21]

9514 1404 393

Answer:

40 ft
t = 1 second

Step-by-step explanation:

A graphing calculator answers these questions easily.

The ball achieves a maximum height of 40 ft, 1 second after it is thrown.

__

The equation is usefully put into vertex form, as the vertex is the answer to the questions asked.

h(t) = -16(t^2 -2t) +24

h(t) = -16(t^2 -2t +1) +24 +16 . . . . . . complete the square

h(t) = -16(t -1)^2 +40 . . . . . . . . . vertex form

Compare this to the vertex form:

f(x) = a(x -h)^2 +k . . . . . . vertex (h, k); vertical stretch factor 'a'

We see the vertex of our height equation is ...

(h, k) = (1, 40)

The ball reaches a maximum height of 40 feet at t = 1 second after it is thrown.

8 0

3 years ago