Answer:
D
Step-by-step explanation:
Using the sine ratio in the right triangle
noting that sin45° = 
← exact value
sin45° = 
= 
Multiply both sides by h, then
h × = 8
Multiply both sides by 
h = 8 → D
8,900,000 this is 8,920,000 rounded to ten thousands
6 kilometers is bigger than 600 centimeters
9500=40×(3)^t
Where t is the number of minutes
Solve for t
9500/40=3^t
Take the log
Log (9500/40)=log (3)×t
Divide each side by log (3)
T=log(9,500÷40)÷log(3)
T=4.9 minutes
So there will be more than 9500 cells in 5 minutes
Answer: 55
Step-by-step explanation: you break it apart into 5*5 which is 25. You break 12 in half because you need to know how much the triangle area is. You get 6*5 which is 30. 30 and 25 added will get you answer 55.
(Make sure with others.)
