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Anna71 [15]
3 years ago
10

Archimedes knew that at 8 am the sunlight reaches the ground at an angle if 43 degrees. The rock besides him is 7 meters tall. H

ow far from the rock is Archimedes.
Mathematics
1 answer:
Alenkasestr [34]3 years ago
4 0

Answer:

Distance between Archimedes and the rock = 7.51 m ≅

Step-by-step explanation:

The sunlight makes an angle of depression of 43 degrees

Hence angle between the rock and the sunlight rays is = 90-43=47 degrees

Distance between Archimedes and the rock = Tan 47 = X/7

X = 7 tan 47 = 7.506580970172 = 7.51m ≅

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AnnyKZ [126]

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Step-by-step explanation:

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4 0
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A class of 28 students can complete 896 math problems in one day how many problems does each student complete
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Answer:

<em>32</em>

Step-by-step explanation:

Assuming they all complete it at the same rate,

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3 0
3 years ago
12−7=13(−12) what is this i need help
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Answer:

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7 0
3 years ago
Read 2 more answers
Evaluate <br> g(4): g(x)=8x^2+9x-7<br><br> A. 121<br> B. 135<br> C. 154<br> D. 157
inn [45]
The answer is:  [D]:  " 157" .
________________________________________________________
Explanation:
______________________________________________________

 g(x) = 8x² + 9x − 7 ;

 g(4) = 8(4²) + 9(4) <span>− 7 ;
</span>
        = 8(4*4) + 36 <span>− 7 ;
</span>
        = 8(16) + 36 <span>− 7 ;
</span>
        = 128 + 36 <span>− 7 ;
</span>
        = 164 − 7 ;

       =  <span>157 .</span>
_______________________________________________________
The answer is:  [D]:  " 157" .
_______________________________________________________
7 0
3 years ago
Use the distributive property to simplify the expression: 5(-3x-7)
mixer [17]
5(-3x-7) (first multiply 5 to -3x then to -7)
-15x-35.
The answer is D) -15x-35
6 0
3 years ago
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