Answer:
<u>C. 108.5 square feet</u>
Step-by-step explanation:
<u>Area of the deck</u>
- Area (left triangle) + Area (rectangle) + Area (right triangle)
- 1/2 x 6 x 7 + 10 x 7 + 1/2 x 7 x 5
- 21 + 70 + 17.5
- 91 + 17.5
- <u>108.5 square feet</u>
Answer: C. How many mountain ranges are in the U.S.
Step-by-step explanation:
A statistical question first of all has to have a quantitative response i.e., answers should be in numbers.
The only two questions here that would yield a numeric answer are options C and D.
Furthermore, a statistical question has variability in it which means that the answer is based on multiple observations not just one. The observations in option C are mountain ranges and as the question requires finding out details about multiple mountain ranges, this is a statistical question.
This is opposed to option D which addresses issues surrounding just one mountain.
Answer:

Step-by-step explanation:
Fro the graph, the first three terms of the sequence are 80,20,5,...
This is a geometric sequence with first term

The common ratio is

The function is given by

We substitute the values we got from the graph into this formula to get:

The correct answer is A
Answer:
J
Step-by-step explanation:
dude trust me
9514 1404 393
Answer:
78.5 km
Step-by-step explanation:
Measured at the airport, the angle between the two planes is ...
180° -60° -50° = 70°
The law of cosines tells us the distance between the planes is ...
d = √(50² +80² -2·50·80·cos(70°)) ≈ √6163.84 ≈ 78.5 . . . km
The planes are about 78.5 km apart.