3 years ago

A coordinate grid is shown below:

Mathematics

1 answer:

lions [1.4K]3 years ago

3 0

Answer: Part A: Which point represents the origin?

Step-by-step explanation:

Part B: Starting from the origin, explain how to plot the following three points accurately:

(−1, 1)

(1, −1.5)

(2, fraction 1 over 4 )

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Find the indicated sum for each sequence. S9 of –9, 36, –144, 576, ... A –585 B –471,861 C 1,887,435 D –471,852

Varvara68 [4.7K]

<h3>Answer: Choice B) -471,861</h3>

=====================================================

Explanation:

This is a geometric sequence because each new term is found by multiplying the last term by -4.

The common ratio is r = -4. The first term is a = -9. We want to sum up n = 9 terms.

Use the geometric nth partial sum formula below to plug in the terms mentioned

$S_n = \frac{a*(1-r^n)}{1-r}\\\\S_9 = \frac{-9*(1-(-4)^9)}{1-(-4)}\\\\S_9 = \frac{-9*(1-(-262144))}{1+4}\\\\S_9 = \frac{-9*(1+262144)}{1+4}\\\\S_9 = \frac{-9*(262145)}{5}\\\\S_9 = \frac{-2359305}{5}\\\\S_9 = -471,861\\\\$

3 0

3 years ago

I need helpppppppp :(

Zanzabum

Answer:

option a

Step-by-step explanation:

m = slope

m=y2-y1/x2-x1

first point (14,1)

second point (18,17)

so we have:

m=(17-1)/(18-14)

she did not keep the order of the point

7 0

3 years ago

Read 2 more answers

What is the equation of this line?

Svetlanka [38]

Answer:

A y=-2x-2 I think so sorry if wrong

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3 years ago

Could you please help me with number

Anarel [89]

Too blury,take a good pic

6 0

3 years ago

"select all the numbers that are solutions to the equation x^3=27"

Ymorist [56]

B and C

3^3 = 27
the cubed root of 27 is 3

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3 years ago