Answer:
12.40511551
Step-by-step explanation:
3758.75 = 12.5 x 24.24 x ?
3758.75 / 12.5 = 300.7
300.7/24.24 = 12.40511551
Answer:

Step-by-step explanation:
Given


Required

In trigonometry:

We need to solve for cosA, sinA and sinB
Given that:
and the tangent of an angle is a ratio of the opposite side (x) to the adjacent side (y),
So, we have:
and 
For this angle A, we need t calculate its hypotenuse (z).
Using Pythagoras,





From here, we can calculate sin and cos A
and 




To angle B.
Give that
and the cosine of an angle is a ratio of the adjacent side (a) to the hypotenuse side (c),
So, we have:
and 
For this angle B, we need to calculate its opposite (b).
Using Pythagoras,



Collect like terms




From here, we can calculate sin B



Recall that:
and





Answer:
39
Step-by-step explanation:
The angles are equal. This means that the triangle is equilateral and all the sides are equal to each other.
Set any two sides equal to each other.
2x - 3 = x + 5
x - 3 = 5
x = 8
Now substitute this x value into all the sides and add the numbers up.
2(8) - 3 = 16 - 3 = 13
So we know all 3 sides equal 13.
13 * 3 = 39
Answer:
John would be running 1560 miles in a year