Answer:
<h2>Number 40 appeared in Pattern B. Also, according to the rule, each pattern will increase.</h2>
Step-by-step explanation:
Let's develop each sequence. Remembe that the rule is "add 15", that's what we need to create each sequence starting from the given initial number.
<h3>Pattern A.</h3>

<h3>Pattern B.</h3>

<h3>Pattern C.</h3>

As you can observe, number 40 appeared in Pattern B. Also, according to the rule, each pattern will increase.
We have to find t(theta) in radians.
cos t = cos 65° + cos 55°
We know that:
cos x + cos y = 2 · cos (x+y)/2 · cos (x - y)/2
cos t = 2 · cos (65°+55°)/2 · cos (65°-55°)/2
cos t = 2 · cos 60°· cos 5°
cos t = 2 · 1/2 · cos 5°
cos t = cos 5°
t = 5° = π/36 radians
Answer:
C. both Vladimir and Robyn
Step-by-step explanation:
Just took the test. Hope this helps