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frutty [35]
3 years ago
5

An equilateral triangle has an altitude of 12.84 m. What is the length of the three equal sides?

Mathematics
1 answer:
Vladimir79 [104]3 years ago
4 0

Answer:

14.83m

Step-by-step explanation:

In an equilateral triangle, of side l and altitude h we have:

h=l/2×sqrt(3).

l=2h/sqrt(3)=2×12.84/1.73=14.83m

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Supriya invested $14,320 in a highly rated ETF. At the end of four years, she had $18,434. What was her annual effective yield o
adoni [48]

Answer:

6.517%

Step-by-step explanation:

This is a multi-year investment and we are not working with a $1 initial investment. There is no mention of compounding so we will use formula A=P0⋅(1+r)N with A=$18,434 and P0=$14,320. We do not know the value of r. However, N=4 years. Substituting the values we have $18,434=$14,320⋅(1+r)4. Divide both sides of the equation by $14,320. Next, take the fourth root of both sides of the equation and subtract 1 to find the decimal form of r.

$18,4341.287291.065170.06517=$14,320⋅(1+r)4=(1+r)4=1+r=r

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6 0
3 years ago
Given 4,7,10,13. Calculate the 20th term.​
Pavlova-9 [17]

Answer:

61

Step-by-step explanation:

to calculate the 20th term you use the formula

Tn=a+(n-1)d where a stands for the first term,n the number of terms and d the common difference.in this case the first term is 4 the common difference is 3 cause they were adding 3 to go to the next term.. therefore the solution will be:

Tn=4+(20-1)3

=4+19×3

=4+57

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I hope this helps

7 0
2 years ago
Please help! Thank you! xx
Marianna [84]
Hi!! if you dont want to use points google graph calculator. There is a good website called Graphing calculator-symbolab Its really helpful. Good Luck!!
Go for d!!

4 0
2 years ago
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Lyrx [107]

Answer:

i think the answer is A

Step-by-step explanation:

again "i think". so i could be wrong

5 0
2 years ago
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Answer:

multiply 3x-2(x+8)

Step-by-step explanation:

PEMDAS

also you must simplify both sides to solve this problem and that's the first step to simplifying this side (the other one is simplified)

3 0
2 years ago
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