Answer:
f(x) = sec x. tan x
⇔ f(x) = 1/cosx . cosx/sinx
⇔ f(x) = sin x
+) when f(x) is increasing => sin x increases
=> x will increase
+) f(x) is decreasing => x will decrease
+) f(x) is concave up => x ∈ (-pi/2; 0)
+) f(x) concave down => x ∈ (0; pi/2)
Step-by-step explanation:
It would be: (150-125) / 150 * 100
= 25/150 * 100
= 2500/150 = 16.66%
Answer:
<u><em>30cm</em></u>
Step-by-step explanation:
Given data
When are square is cut diagonally into two parts
The resulting shape is a triangle
hence the area of the square = 50+50 = 100cm^2
The length of each side of the square = √100= 10cm
likewise the diagonal of the square = 10cm
<u><em>Hence the perimeter of the resulting triangle= 10+10+10= 30cm</em></u>
-6, -1, 5, 7, 8. Hope this helps. :)
Do you mean the hypotenuse of the triangle?
If so, you can use pythagorean theorem:
a^2 + b^2 = c^2
11^2 + 8^2 = c^2
121 + 64 = 185 = c^2
c = sqrt(185) = 13.6