An = a1+d*(n-1)
a11 = 75-8*(11-1) = -5
Sec t (theta) - 2 = 0
sec t = 2
1/ cos t = 2
cos t = 1/2
Answer:
t = π / 3 + 2 k π , or : t = 5 π / 3 + 2 kπ,
k ∈ Z
Answer:
P = 20 cm
Step-by-step explanation:
The appropriate formula is P = 2W + 2L.
Here that comes to P = 2(6 cm) + 2(4 cm) = 20 cm
Answer:
Triangular prism, 108
Step-by-step explanation:
First, find its base (6*4/2)
12
Then multiply it by its height
12*9 = 108
It's a triangular prism because it's base is a triangle