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Amiraneli [1.4K]
3 years ago
8

The sum of the first n odd numbers is n^2. What is the sum of the odd numbers from 1 through 31?

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
6 0

Answer:

256

Step-by-step explanation:

sum of the first n odd number is n^2

if we want to find the sum of of 1 thru 31

to find out how many numbers that is

(1+31)/2 = 32/2 =16

there are 16 numbers

n^2 =16^2 =256

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You start at (1,0) And move down 2 units and left 4 units where do you end
djverab [1.8K]

Answer:

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Step-by-step explanation:

Starting at the point (1, 0)

Now we move don 2 units (so the y-value reduces in two units) making now the point (1,0-2)  which is (1, -2)

then we move to the left 4 units (so the x-value has now to be decreased in 4 units) making the point: (1-4, -2) which is (-3, -2)

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otez555 [7]

Given:

The ratio and rates:

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4. $36 for 4 rounds of shrimp

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Solution:

1. 30 ft. To 60.Ft

\dfrac{30\text{ ft}}{60\text{ ft}}=\dfrac{1}{2}

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3. 1,500 meters in 6 seconds

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4. $36 for 4 rounds of shrimp

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4 0
3 years ago
If the ratio of side lengths of similar polygons is 6:11, what is the ratio of perimeters
algol13

Answer:

6 : 11

Step-by-step explanation:

the ratio 6 : 11 applies to all linear measure in the similar polygons

Both side lengths and perimeter are linear, hence

ratio of both is 6 : 11

8 0
3 years ago
The circumference of a circle is 28.888 centimeters. What is the circle's radius?
DanielleElmas [232]

Answer:

4.6

Step-by-step explanation:

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3 years ago
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Olenka [21]
1) 27+x=81
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