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olga55 [171]
3 years ago
5

Sigma notation can someone help me understand this and give an example...

Mathematics
1 answer:
timofeeve [1]3 years ago
4 0

Answer:

Simple sum. The symbol Σ (sigma) is generally used to denote a sum of multiple terms. This symbol is generally accompanied by an index that varies to encompass all terms that must be considered in the sum.

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Jerome rides his bike 10 kilometers everyday. How many meters does he ride?
snow_tiger [21]
Well this is a very vague question... (But I can still answer it since I'm cool))

1 kilometer is 1000 meters so if ya do the math correctly you will get 10,000 meters

But since this is a vague answer I can't be sure since I don't know the time aspect of the question. 

Hope this helps my friend

-Roma Invicta
3 0
3 years ago
Khan academy What is the slope of the line?
Irina18 [472]

Answer:

Slope: 3/4

Step-by-step explanation:

If you want the equation for the line:

y = (3/4)x - 1

However, this is how you find the slope:

You want to find any two point on the graph, however, it's easier if it touches exactly where two number meet. For example I chose:

(0,-1) and (2,4)

Now just find the change in y, and divide it by the change in x

change in y = 3

change in x = 4

So your slope is 3/4

4 0
3 years ago
A four-door sedan costs$35000 with a residual value of $2000. Its service life is five years. Using the declining balance method
larisa [96]

Answer:

At the end of the 2 year, the book value of the truck is $12,600

Step-by-step explanation:

we know that

<u><em>Double declining balance method</em></u> is a form of an accelerated depreciation method in which the asset value is depreciated at twice the rate it is done in the straight-line method.

Step 1

Determine the straight-line depreciation rate

Divide the total cost by the number of years in the asset's useful life.

\frac{\$35,000}{5}=\$7,000

Step 2

Then, multiply that number by 2 and that is your Double-Declining Depreciation Rate

7,000(2)=\$14,000 -----> is the depreciation for Year 1

Step 3

At the end of the first year, the book value of the truck is

\$35,000-\$14,000=\$21,000

Step 4

For Year 2, we will apply the same formula to the book value of the truck by the end of Year 1

\frac{\$21,000}{5}=\$4,200

4,200(2)=\$8,400 -----> is the depreciation for Year 2

therefore

At the end of the 2 year, the book value of the truck is

\$21,000-\$8,400=\$12,600

3 0
3 years ago
The graph of the function P(x) = −0.52x2 + 23x + 92 is shown. The function models the profits, P, in thousands of dollars for a
Liono4ka [1.6K]

Answer:

6.84 ≤ x ≤ 37.39

Step-by-step explanation:

we have

P(x)=-0.5x^2+23x+92 -----> equation A

we know that

The company wants to keep its profits at or above $225,000,

so

PXx)\geq 225 -----> inequality B

Remember that P(x) is in thousands of dollars

Solve the system by graphing

using a graphing tool

The solution is the interval [6.78,39.22]

see the attached figure

therefore

A reasonable constraint for the model is

6.84 ≤ x ≤ 37.39

4 0
3 years ago
Read 2 more answers
What is 2* 5 equal to?
Paul [167]

Answer:

32

.......................................

3 0
3 years ago
Read 2 more answers
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