Answer:
if you use perimeter area you can get answer
<span>By the Pythagorean theorem:
x = </span>√(9²+7²)
= √(81+49)
= √130
≈ 11.40 to the nearest hundredth
Answer:
45
Step-by-step explanation:
15 x 3 = 45 - 3 = 42
The surface elevation of Lake Powell is decreasing at the rate of 77.2 feet per year.
<h3>What is the rate(slope) at which the sea is decreasing?</h3>
The rate at which the surface elevation of the Lake Powell is decreasing can be determined by calculating the slope(steepness) of the sea.
The slope can be given as:
Slope (Δm) = rise/run
Slope (Δm) = Δy/Δx
slope (Δm) = y₂ - y₁/x₂-x₁
slope (Δm) = 3263.4 - 3881/2006-1998
slope (Δm) = -617.6/8
slope (Δm) = -77.2
Therefore, we can conclude that the surface elevation of Lake Powell is decreasing at the rate of 77.2 feet per year.
Learn more about calculating the slope here:
brainly.com/question/1884491
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Answer:
$180 was collected from Grade 9 students
Step-by-step explanation:
40% of 120 students is 48. This means that 48 students went. If half of these students paid half price, 24 students paid $2.50, and 24 students paid $5.00.
24 x 2.5 is 60
24 x 5 is 120
60 + 120 is 180, which is the total amount of money collected.
