3 years ago

The map of a biking trail is drawn on a coordinate grid.

Mathematics

1 answer:

Vitek1552 [10]3 years ago

6 0

Is 23 unit lendgth fo bike tracks

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Find S11 for 1 + 2 + 4 + 8 + …

NemiM [27]

Answer:

2,047

Step-by-step explanation:

Given:

$1+2+4+8+...$

Find:

$S_{11}$

You are given the geometric sequence. From the given sum, you can see that

$b_1=1\\ \\b_2=2=1\cdot 2=b_1\cdot 2\\ \\b_3=4=2\cdot 2=b_2\cdot 2\\ \\b_4=8=4\cdot 2=b_3\cdot 2\\ \\....\\ \\r=2$

To find the sum $S_{11},$ use formula

$S_n=\dfrac{b_1(1-r^n)}{1-r}$

Hence,

$S_{11}=\dfrac{1\cdot (1-2^{11})}{1-2}=\dfrac{1-2,048}{-1}=2,047$

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3 years ago

What is 1 and 7/10 as a decimal? 0.17 1.7 th 0.7 7.1 1.07

earnstyle [38]

1.7 is the answer to the question

3 0

3 years ago

The table below shows the total sales by a computer salesman during a three-year period. year 1. $5,000. year 2. $8,500 year 3.

Anastasy [175]

Answer:

3000

Step-by-step explanation:

1312.50+625+1062.5=3000

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3 years ago

Who needs Math Help?

raketka [301]

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3 years ago

A local farm sells strawberries and blueberries. The ratio of the number of strawberries to blueberries it sells at 5:3. If it s

olganol [36]

Answer:

125

Step-by-step explanation:

The ratio is 5:3 so we divide the 75 by 3 to get 1 part

1 part = 75

75 x 5 = 125

125 strawberries were sold :)

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2 years ago