Answer:
c.
Step-by-step explanation:
The pattern is supposed to be -4.
7Answer:
Step-by-step explanation:
Answer:
56 cubic feet
Step-by-step explanation:
V = l x w x h
V = 4 x 7 x 2
Answer:
pi
Step-by-step explanation:
The area of a circle with radius 2
A = pi r^2
A = pi 2^2
A = 4pi
The shape is 1/4 of a circle
The area is 1/4 * 4pi
pi
Try this option:
1. rule: if θ∈(0;90°), then cosθ>0 and sinθ>0;
2. using the rule and sin²θ+cos²θ=1, ⇒ cosθ=√(1-sin²θ)=√15/4.
answer: