Answer:
3.2 feet
Step-by-step explanation:
The equation
shows the height of water [
] and horizontal distance [
].
<em>Given the </em><em>horizontal distance is 4 feet</em><em>, they want to know the height.</em>
<em>Simply put 4 in
of the equation and solve for
. So,</em>
<em>
</em>
So, the height of the water was 3.2 feet above the ground.
Answer:
cos(X+Y) = cos(55+35) = cos(90) = 0
Step-by-step explanation:
cos(X+Y) = cosXcosY - sinXsinY
cos(55+35) = cos(55)cos(35) - sin(55)sin(35)
cos(55+35) = cos(55)cos(35) - cos(90-55)cos(90-35)
cos(55+35) = cos(55)cos(35) - cos(35)cos(55)
cos(55+35) = 0
cos(90) = 0
15
3 x 5 or 5 x 3
35
5 x 7 or 7 x 5
So the answer is 5