Answer:
247 people per square mile
Step-by-step explanation:
Population density is people per area
We need to find the area
We are given the radius
We will assume a circular area since we are given radius
A = pi r^2
A = 3.14 * 5^2
A = 3.14 *25
A = 78.5 miles ^2
19400 people
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78.5 miles ^2
247.133758 people per square mile
Rounding to the nearest person
247 people per square mile
Try this solution:
rule: Distance=speed * time, where Distance=10216 (mi); t=8 (h) and speed=slower_jet + faster_jet (mi/h);
note, that faster_jet=slower_jet+65 (mi/h). Using these:
(slower_jet+65)*8=10216;
slower_jet=(10216-520)/16;
slower_jet=606 (mi/h);
faster_jet=606+65=671 (mi/h).
answer: <u>606 & 671</u>
Answer:
The hypotenuse formula is simply taking the Pythagorean theorem and solving for the hypotenuse, c.
Step-by-step explanation:
Solving for the hypotenuse, we simply take the square root of both sides of the equation a² + b² = c² and solve for c . When doing so, we get c = √(a² + b²)
Answer: About 15 feet off the ground
The more accurate value is 14.6167273222817 but even this value is not fully exact.
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Work Shown:
Refer to the diagram below.
sin(angle) = opposite/hypotenuse
sin(66) = x/16
16*sin(66) = x
x = 16*sin(66)
x = 14.6167273222817
x = 15
The ladder reaches roughly 15 feet off the ground, when rounding to the nearest whole number.
I'm rounding to the nearest whole number since the other length (16 ft) is a whole number. Round however you need to if your teacher instructs otherwise.
Your answer is correct! :D