Answer:
b=4.9
C. is the correct option.
Step-by-step explanation:
In triangle TGN,
Let <RTG be x
cosx= b/h
or, cosx = 2/a
Again,
In triangle TRG,
cosx = b/h
(for bigger right angled triangle)
cosx = a/(4+2)
cosx = a/6
Now
cosx = 2/a = a/6
or, 2/a = a/6
or, 12 = a²
so, a² = 12
Now,
For TRG,
h² = p²+b²
or, 6² = b² + a²(a²=12)
or, 6² = b² + 12
or, 36 = b² + 12
or, 36 -12 = b²
or, b² = 24
or, b = square root 24
so, b = 4.8989
so, b = 4.9
Base length = 5 + 7 + 5 = 17
We are given the data that David has been reimbursed with $3390 driving 600 miles and his expenses are <span>$60 a day for food and lodging and $0.65 per mile. The equation is 3390 = 60 x + 0.65 * 600 = 60 x +390 where x is the number of days. To determine x, we transpose 390 to the other side and divide the equation by 60. x is equal to 50 days.</span>
So you’re basically multiplying 18 and 15. It’s going to be 270 ft