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Alex787 [66]
3 years ago
15

a metal strip is being installed around a workbench that is 7 feet long and 3 feet wide. find how much stripping is needed

Mathematics
2 answers:
Lorico [155]3 years ago
8 0

Answer:

20 feet

Step-by-step explanation:

A metal strip is being installed around a workbench that is 7 feet long and 3 feet wide.

The shape of workbench is line a rectangle.

The length of workbench is 7 feet.

The width of workbench is 3 feet.

Perimeter of of rectangle = 2(L+W)

                                        = 2(7+3)

                                        = 2(10)

                                        = 20 feet

Hence, The length of metal strip that is needed 20 feet

VikaD [51]3 years ago
5 0

Answer:

20 ft.

Step-by-step explanation:

7 ft and 3 ft.

3*2=6

7*2=14

6+14=20.

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A population of fish in a lake is 14000 in 2010. The population decreases 6% annually. What is the population in 2019
kodGreya [7K]

Answer:

8022.

Step-by-step explanation:

Let x be the number of years after 2010.

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We can see that population of fish is the lake is decreasing exponentially as it is decreasing 6% annually.

Since we know that an exponential function is in form: y=a*b^x, where,

a = Initial value,

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Let us convert our given decay rate in decimal form.

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Upon substituting our given values in exponential form of function we will get the population of fish in the lake after x years as:

y=14,000*(1-0.06)^x

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6 0
3 years ago
I need help to solve please
antiseptic1488 [7]

Answer:

<h2><em><u>x = 52</u></em></h2>

Step-by-step explanation:

<em><u>Known:</u></em>

What to find = x

Exterior angle = 142

Right angle = 90

<em><u>Unknown:</u></em>

what unknown value is = ?

Interior angle = ?

<em><u>1. Find the angle of the interior angles.</u></em>

180 - 142 = 38

<em><u>2. Add the two known angles</u></em>

38 + 90 = 128

<em><u>3. Subtract from 180</u></em>

180 - 128 = 52

<h2><em><u>x = 52 is the answer.</u></em></h2>

Hope this helped,

Kavitha Banarjee

6 0
3 years ago
Use the digits 1-7 to create a seven digit number that can be rounded to 6,300,000
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Use every one of the numbers from 1-7 or just like, 6,311,111 round down?
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