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Serenitybella
04.08.2019 •
Mathematics
What is the area of a triangular roof whose shorter lengths are 20 feet and 30 feet, when the angle between these lengths is 35º? round your answer to the nearest tenth of a square foot.
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Ответ:
area = 1/2 × side × side × sin angle between the sides
Input the numbers
area = 1/2 × side × side × sin angle between the sides
area = 1/2 × 20 × 30 × sin 35°
area = 300 × sin 35°
area = 300 × 0.57358
area = 172.07
area = 172.1 ft²
Ответ:
Ответ:
Step-by-step explanation:
Let x represent the number of males on the ride. Let y represent the number of females on the ride.
As per given , we have ,
From (i) and (ii), the required two linear equations form a system that you can use to find the number of males and the number of females on the ride are :