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WhiteMex69
14.12.2020 •
Mathematics
What is the value of the expression below?
4 – 3³ • (2 +√100)
Solved
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Ответ:
A.) -320
Step-by-step explanation:
Correct on edge
Ответ:
Here BD & AB represent the string.
Now in triangle DBC, CD is opposite to 25° and BD = 50 is the hypotenuse.
The trigonometry ratio associating opposite and hypotenuse is sin.
So we have
Multiplying by 50 on both sides
CD = 50 × sin 25°
CD = 21.13 feet
Now in triangle ABC, BC = opposite and AB =50 is hypotenuse with respect to 45°.
So we have
Multiplying by 50 on both sides
AC = 50 × sin45°
AC = 35.36 feet
Hence the kite moves up by = 35.36-21.13 = 14.23 feet.
The approximate difference in the height of the kite is 14.2 feet
Option a) is the right answer.