Answer:
11.43 ft
Step-by-step explanation:
Mean = sum of low tides / total number of low tides
(20.22 ft + 2.64 ft + 20.22 ft + 2.64 ft.) / 4 = 11.43ft
-8/5 is the correct answer
Answer: 720 is greater than 648
Step-by-step explanation:
The required posterboard for an art project = 4 1/2 square feet
1 square foot = 144 square inches
4 1/5 × 144 square inches
= 648 square inches.
The available posterboard is with a length of 30 inches and a width of 2 feet.
One foot = 12 inches
The area of the available posterboard 30 × 2 × 12 = 780 inches
Since the available area is greater than the required area, the posterboard will therefore be enough for the project.
Answer:
Complementary Angles-either of two angles whose sum is 90°.
x+4x=90
5x=90
x=18
