Area of a triangle is (height * base) / 2
A = (h *b)/2
h = 10
b = 8
A = (10 * 8) / 2
A = 80/2
A = 40 ft^2 <==
Step-by-step explanation:
½ [cos(a − b) − cos(a + b)]
Using sum and difference formulas:
½ [cos a cos b + sin a sin b − (cos a cos b − sin a sin b)]
Distribute the negative:
½ (cos a cos b + sin a sin b − cos a cos b + sin a sin b)
Combine like terms:
½ (2 sin a sin b)
Simplify:
sin a sin b
Answer:
65.9
Step-by-step explanation:
Answer:

Step-by-step explanation:




-3/4
Step-by-step explanation:
f(x) = (1,2) & (-3,5)
f(x) = y²-(y¹)
_____
x²-(x¹)
y=5-2
___
-3-1
y=-3/4