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2 years ago

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Gavin is building a fence. He needs to put a post every feet. If a new segment of the fence has 15 new posts, using the last pos

t from the previous section of fence as a starting point, how long is the new segment of fence?

1 answer:

Delvig [45]2 years ago

3 0

We predict that the fence is 15 feet

Hope this helps!

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2x-10/4=3x<br> −10<br> −1<br> 2<br> 11

evablogger [386]

Answer:

<h2>-1</h2>

Step-by-step explanation:

$\dfrac{2x-10}{4}=3x\qquad\text{multiply both sides by 4}\\\\2x-10=12x\qquad\text{subtract}\ 2x\ \text{from both sides}\\\\-10=10x\qquad\text{divide both sides by 10}\\\\-1=x\to x=-1$

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3 years ago

What is the height of the antenna?

ira [324]

Answer:

14 feet.

Step-by-step explanation:

Use the tangent function:

$tan\alpha = \frac{opposite}{adjacent}$

a = length of antenna:

$tan\70 = \frac{a}{15}$

$a = 15tan\70$

a = 14.09538931 ≈ 14

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3 years ago

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10 because if you 3 with 7 I will make 10

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3 years ago

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Armon added 1/10 and 8/100 whats the sum helpppp

DochEvi [55]

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3 years ago

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Find the sum of the following infinite geometric series.

Crazy boy [7]

Answer:

Final answer is $\frac{80}{3}$ .

Step-by-step explanation:

We have been given an infinite geometric series.

Now we need to find it's sum.

common ratio $r=-\frac{1}{5}$ .

plug n=1 to get the first term

$a_n=32\left(-\frac{1}{5}\right)^{\left(n-1\right)}$

$a_1=32\left(-\frac{1}{5}\right)^{\left(1-1\right)}$

$a_1=32\left(-\frac{1}{5}\right)^{\left(0\right)}$

$a_1=32\left(1\right)$

$a_1=32$

Now plug these values into infinite sum formula

$S_{\infty}=\frac{a_1}{1-r}=\frac{32}{1-\left(-\frac{1}{5}\right)}=\frac{32}{1.2}=\frac{320}{12}=\frac{80}{3}$

Hence final answer is $\frac{80}{3}$ .

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3 years ago