Answer:
c = 4
Step-by-step explanation:
Let the common difference be c. Then a(n) = -3 + c(n-1). Since a(15) = 53, a(15) = -3 + (15-1)c = 53. Therefore, -3 + 14c = 53, or 14c = 56; c = 4.
Answer:
Step-by-step explanation:
The angle we are given is 2° and we are given the opposite leg, 135 ft. We are trying to find the hypotenuse length- the diagonal distance from the ship to the lighthouse.
So, we use SOHCAHTOA with sine:

Keep in mind that the angle is in degrees. Also, the number is large because of the extremely short angle.
Answer: d = 4√5 or 4.47
Step-by-step explanation:
To find the distance of two-point, we can use the distance formula:
or d ≈ 4.47
The answer is b to this qestion