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Anni [7]
4 years ago
14

From a point p on level ground, the angle of elevation of the top of a tree is 60°. If the tree is 39m high, how far is its base

from p
Mathematics
1 answer:
zzz [600]4 years ago
5 0
Hello,

tan 60°=√3
d/39=tan 60°==>d=39/√3=39√3/3=13√3=22,516660498... (m)

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In which pair of numbers is the first number a multiple of the second number?
Sedaia [141]

Answer:

27,9

Step-by-step explanation:

9x3=27

5 0
3 years ago
Can someone solve this? Im lost .......
Westkost [7]
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5 0
3 years ago
Find the sample size, n, needed to estimate the percentage of adults who have consulted fortune tellers. Use a 0.02 margin of er
Brrunno [24]

Answer: 2172

Step-by-step explanation:

Formula to find the sample size n , if the prior estimate of the population proportion(p) is known:

n= p(1-p)(\dfrac{z^*}{E})^2 , where E=  margin of error and z* = Critical z-value.

Let p be the population proportion of adults have consulted fortune tellers.

As per given , we have

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Then, the required sample size will be :

n= 0.20(1-0.20)(\dfrac{2.33}{0.02})^2

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3 0
3 years ago
Not sure! help! please
sergejj [24]
\dfrac{ \frac{x}{4} + \frac{1}{8} }{ \frac{x^2}{4} } =

\vspace{3mm}

=  \dfrac{ \frac{2x}{8} + \frac{1}{8} }{\frac{x^2}{4}} 

\vspace{3mm}

=  \dfrac{ \frac{2x+1}{8} }{\frac{x^2}{4}} 

\vspace{3mm}

= \dfrac{2x + 1}{8} \times \dfrac{4}{x^2}

\vspace{3mm}

= \dfrac{2x + 1}{2x^2}
7 0
3 years ago
Eli ran for two weeks. During the first week , eli ran 12 miles . During the next week, he ran 15 miles. What is the ratio of th
Arada [10]
The correct ratio is 12:27
hope this helps
5 0
3 years ago
Read 2 more answers
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