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-BARSIC- [3]
3 years ago
12

A+b+c=180 a=x+25 b=x-5

Mathematics
1 answer:
leva [86]3 years ago
3 0
A+b+c=180
subsittute
x+25+x-5+c=180
2x+20+c=180
minus 20 both sides
2x+c=160
mius 2x
c=160-2x
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The wildflowers at a national park have been decreasing in numbers. There were 1200 wildflowers in the first year that the park
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Year      New flowers

1                 1200

2                 300

3                   75

There were 1200 wildflowers in the first year that the park started tracking them. Since then, there have been one fourth as many new flowers each year

Initially there are 1200 flowers and start decreasing by \frac{1}{4}

So first term is 1200 and common ratio is \frac{1}{4}.

Its a geometric sequence so summation becomes

i =1∑ ∞ 1200(\frac{1}{4})^{i-1}

Now we find the sum

We use sum formula

Sum = \frac{a}{1-r}

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Sum = \frac{1200}{\frac{3}{4}}

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4 years ago
on a recent hike through riverbend park antoinette traveled 2/3 mile in 1/3 hour . Which unit rate describes antoinettes speed i
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Answer:

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Step-by-step explanation:

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The velocity is given by the following formula:

v = \frac{d}{t}

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2/3 mile in 1/3 hour .

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This is v. So

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