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MArishka [77]
4 years ago
9

Solve these word problems.

Mathematics
1 answer:
jolli1 [7]4 years ago
6 0

Answer:  1) Length = 171 meters, width = 129 meters

<u>Step-by-step explanation:</u>

Length = w + 42

width = w

Perimeter = 600

Perimeter = 2(Length) + 2(width)

         600 = 2(w + 42) + 2(w)

         600 = 2w + 84   +  2w

         600 = 4w + 84

          516 = 4w

          129 = w

Length = w + 42

            = 129 + 42

            = 171

NOTE: #2 and #3 do not make sense the way you wrote them. Please submit those problems again exactly as the question is written in your homework.

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Simora [160]

Answer:

1+r+r^{2}+r^{3}+.....+r^{n-1} = \frac{1-r^{n}}{1-r}

Step-by-step explanation:

Taking the succession:

1+r+r^{2}+r^{3}+.....+r^{n-1}

You can multiply and divide by 1-r without chaging the result:

\frac{1-r}{1-r} (1+r+r^{2}+r^{3}+.....+r^{n-1})

Distributing the upper part of the fraction you have:

\frac{1}{1-r} (1-r+r-r^{2}+r^{2}-r^{3}+r^{3}-r^{4}+.....+r^{n-1}-r^{n})

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1+r+r^{2}+r^{3}+.....+r^{n-1} = \frac{1-r^{n}}{1-r}

5 0
3 years ago
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TEA [102]
Exponential in form. y=AB^x
put data into calc should get
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3 years ago
Which calculator correctly shows the quotient of 6.47x10^-15/3.36x10^-29
Alex73 [517]
<h2>Answer:</h2>

\boxed{1.92559524e+14}

<h2>Step-by-step explanation:</h2>

Scientific notation is a special way we choose for writing numbers. So the numers 6.47\times 10^{-15} \ and \ 3.36\times 10^{-29} are written in scientific notation. In this way, we have a quotient of two numbers written in scientific notation. To solve this problem, we have:

\frac{6.47}{3.36}\times 10^{[-15-(-29)]}=1.92559524\times 10^{(-15+29)} \\ \\ \therefore 1.92559524\times 10^{14} \ or \ \boxed{1.92559524e+14}

The division has been performed using the rules for operation with exponentiation.

5 0
3 years ago
Read 2 more answers
Why do we have to change an improper fraction to a mixed fraction​
pogonyaev

Answer:

My I don't know it is stupied!

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
Plz answer b I don't get it
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