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3 years ago

(25 points) What is the value of k? Please explain your answer

Mathematics

1 answer:

galben [10]3 years ago

6 0

Answer:

que?

Step-by-step explanation:

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What proportion of the first 10,000 natural numbers contain a 3

Sergeeva-Olga [200]

In the first 10 -> 10 - 9 = 1 (contain a 3).
In the first 100 -> 100 - 9 * 9 = 19 (contain a 3).
In the first 10^n -> 10^n - 9^n (contain a 3).

$

So for 10^4 -> 10^4 - 9^4 = 10.000 - 6.561 = 3.439 
$

<u>The answer is 3.439 numbers contain a 3 in the first 10.000</u>

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3 years ago

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you own a rectangular lot that id 500 feet deep it had an area of 1,000 square feet to pay for a new water system you are assess

poizon [28]

I’m pretty sure it’s is a 6’50

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3 years ago

Suppose that Bob leaves a job that pays $100,000 per year in order to open a new sponge business. His insurance cost is $8,000,

tensa zangetsu [6.8K]

Answer:

-$11,000 is the economic profit or we can say it is a loss.

Step-by-step explanation:

The job paid Bob = $100000

The insurance cost is = $8,000

The material cost is = $15,000

The lease payments are = $8,000

The sales revenue is $120,000.

So, Bob's economic profit is: $120000-100000-8000-15000-8000=-11000$

Therefore, his economic profit is -$11000.

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3 years ago

Find the surface area of the prism

scoray [572]

Lets find the area of the 2 rectangles on the left and right side.
8*7 (2) = 112 (Both rectangles in total)
Now lets find the rectangles on the front and back.
13*7 (2) = 182
Now, the top and bottom ones.
13*8 (2) = 208
Add them all together.
112+182+208 = 502
The surface area is 502.

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4 years ago

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Austin is serving his child french fries and chicken wings for lunch today. Let be the number of french fries in the lunch, and

seropon [69]

Answer:

25f+100c<500

Step-by-step explanation:

He wants that total calorie count to be less than 500 cals, so we use <.

25f, means for each french fries we have 25 calrs.

100c, for each chicken wings we have 100 calories.

So inequality is 25f+100c<500.

For example, he can not eat 4 french fries and 4 wings (4*25+100*4=500 is not less from 500, it is equal), but he can eat 3 fries and 4 wings (3*25+100*4=475<500).

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3 years ago