This is a trigonometry question, where a right angle triangle is created from the boat to the coast to the top of the light house.
x is the angle of elevation
Opposite is the height of the light house
Adjacent is the distance from coast
Tan(x) = opposite/adjacent
tan (59) = opposite/ 45
tan(59) x 45 = opposite
opposite = 74.893
The height of the light house (from sea level) is 75 foot.
9514 1404 393
Answer:
B
Step-by-step explanation:
In order for the matrix to represent the equations, the coefficients in the equations need to match the terms in the matrix. That is only the case for choice B.
__
Details are important in math.
Answer:
see explanation
Step-by-step explanation:
the n th term of an arithmetic sequence is
= 
+ (n - 1)d
given = 3 and 
= 10, then
= 3 + d = 10 ⇒ d = 10 - 3 = 7
= 3 + 7(n - 1) = 3 + 7n - 7 = 7n - 4
the sum to n terms of an arithmetic sequence is
= 
[2 + (n - 1)d ]
= [(2 × 3) + 7(n - 1) ]
= (6 + 7n - 7 )
= (7n - 1)
= 
n² - 
n
Answer:
a is growth and b is decay
Step-by-step explanation:
a is growth because it is adding cause the percentage is <u>1</u><u> </u><u>or </u><u>higher</u><u> </u>so that would make b decay because it is subtracting because the percentage is <u>lower </u><u>than </u><u>1</u> so it would be like 0.12
Answer:
28
Step-by-step explanation:
You can see there is a right angle formed by 62 and x, so:
x + 62 = 90
x = 28
